103
- HT
S Di
pole
des
ign
stud
ies
EuCARD2 103HTS Dipole Design Studies
03022014
030
220
14
1
ldquoAgendardquo
bull Design layouts studiesbull Open issues
bull laquo Field quality raquo conductorbull Conductor insulationbull Winding behaviorbull Mechanical characterizationbull Roebel cable impregnationbull Test coil
bull Actions listbull Meetings
2
103
- HT
S Di
pole
des
ign
stud
ies
030
220
14
Design layouts
D101 Conceptual study of HTS accelerator magnets Nov 2014
bull YBCO Roebel cablebull Sheared block design CERNbull Cosine-theta design CEA
bull YBCO Stacked cablebull Block design INPGbull Cosine-theta design CEA
bull BSCCO Rutherford cablebull CCT design 8-strands cable LNBL + CERNbull Cosine-theta design 8-strands cable LNBLbull Cosine-theta design 28-strands cable CEA andor LNBLbull Block design Texas AampM
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
3
bull high Jc conductor high JE cablebull JE (B20T 42K) = 600 Ammsup2 (actual baseline) 400 Ammsup2 (new baseline)
bull field homogeneity low AC losses transposed cable configuration bull ok for BiSCCO Rutherford cables bull Ok for Roebel cables current distribution studies bull for stacked tapes cable cable transposition is proposed
bull (a) at coil endsbull (b) pole-to-polebull Need for AC-losses measurements on tapes and stacksbull Need for transposition modeling bull Geometry dependencebull positioning defaults impact
bull Need for fully twisted stacked tapesbull precise and controlled dimensions
bull an issue for YBCO Roebel Need for cable characterization winding testsbull an issue for twisted stacked tapes twist region configuration studiesbull ok for BiSCCO Rutherford cable (HT 900degC)
ldquoField qualityrdquo accelerator cable 1
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
4
(a)
(b)
ldquoField qualityrdquo accelerator cable 2bull mechanical strengthbull An issue for non impregnated Roebel cablesbull An issue for twisted stacked tapesbull Need for cable mechanical modeling
bull mechanical stabilitybull An issue for Roebel cables support impregnation
bull windability (bending radius)bull Ok for BiSCCO Rutherford cablebull To be demonstrated for YBCO cables
bull Tensile stress limitbull Bending behavior Jc degradation delamination
bull protectionbull Need for high current cable
bull Acceptable minimal value 5kA Source Calculation hypothesisbull Need for Copper stabilizer
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
5
Conductor insulation
bull Insulation candidates - YBCO cablebull Polyester coating (EuCARD HTS insert) bull Kapton bull Polyester heat shrink tubing
bull Glass fiber tape compatible with cable impregnation
bull Insulation candidate - BiSCCO cable 900 degC HT compatiblebull Glass fiber tape bull TiO2-PPC
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
6
Polyester heat shrink tubing from Advanced Polymers Inc used for Y10-04 test coil at NHMFL
Winding behavior ndash Roebel 1
bull Bending propertiesbull easy way bending (out of plane)
bull at CERN (J Fleiter) R gt 4 mmbull at CERN (Jeroen) R gt 11 mm for KIT cable Studies on link between
transposition pitch and bending radiusbull at KIT
bull hard way bending (in plane)bull R gt 900 mm (J Fleiter)bull R gt 2m (Jeroen GC cable)
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
7
Winding behavior ndash Roebel 2
bull Cable handling winding proceduresbull studies starting at CEAbull tension stress limit
bull From Bumby et al Failure axial tensile stress 146 MPa for the meander tape and 113 MPa for the Roebel cable (625 Mpa for the straight conductor)
bull Stress distribution between strands bull Shall we have to stop at tension stress limit of a strand
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
8
Winding behavior - Stacked tapes
bull Bending propertiesbull easy way bending (out of plane)
bull R gt 10 mm (Jeacuterocircme Fleiter)bull hard way bending (in plane)
R gt 900 mm (Jeacuterocircme Fleiter)
bull Cable handling winding proceduresbull studies starting at CEA bull EuCARD HTS Insert
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
9
Mechanical characterization ndash Roebelbull Transverse pressure studiesbull at CERN (J Fleiter)
bull Non homogeneous stress distribution across the length and across the section (a)
bull Measured no Ic reduction up to 45 MPa of average transverse stressbull at KIT (Bayer et al)
bull Measured 10 reversible Ic reduction starting from 14 MPa of average transverse stress (b)
bull at CERN (J van Nutgeren G Kirby)
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
10
Roebel cable impregnation
bull Transverse stress reinforcementbull Copper strips between YBCO tapes bull Cable impregnation
bull at CERNbull discussion with CTD for fillers bull ten stack test campaign contraction and thermal conductivity young
modulus contact resistance breakdown voltage of turn to turn insulation
bull at KITbull Tests on filler materials together with Twente University
bull Need for Roebel cable modelingbull Need for dummy YBCO cable to test for delamination issues
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
11
Test coil
bull SMC type coil
bull Feather - M0 coil (Jeroen CERN)
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
12
Feather-M0Purpose - learn winding (mechanical)Standalone - 0620 T (wo iron)In background (13T) - 0620 1048744T (wo iron)Number of turns - 4Operating current - 90 kAInductance (self) - 45 microHStraight Section - 40 mm (incl layer jump)Cable length - 20 m (2 poles)ApertureOuter size - 4069 mm (Fresca-III)
Actionsbull Conductor design (number of tapes twist pitch ) task 102bull AC-losses measurements on tapes and stacks Grenoble is checking
for tests possibilities at CRETAbull Cable transposition modeling INPGbull twist region configuration studies INPGbull Roebel cable mechanical modeling CEA or CERNbull impregnation CERN has purchased a set of different resins to
evaluate the impact onbull Mechanical reinforcement starting with stainless-steel cablebull Differential thermal contraction delamination need for YBCO cablebull Contact resistance
bull cable characterization winding testsbull mechanical tests CERNbull winding procedures tests CEA
bull quench detection system (CERN collaboration with Ramesh Gupta)bull protection start with new cables modeling
13
103
- HT
S Di
pole
des
ign
stud
ies
030
220
14
Meetingsbull EuCARD2 1st Annual Meeting + Workshop on HTS for accelerators
bull DESY Laboratory in Hamburgbull Monday May 19th to Tuesday May 20th general sessionsbull Wednesday May 21st to Thursday May 22nd workshop on HTS for accelerators
bull Regular short progress meetingsbull We would like to fix a weekly meeting a window to merge studies progress done
problems need for special topics meetingsbull Do not look for everyone to be present bull A doodle to find the best daytime will be prepared by Mariabull Only design people could be involved in a first time
bull CEA Maria Durante Cleacutement Lorinbull CERN Glyn Kirby Jeroen van Nugteren (Gijs de Rijk)bull INPG John Himbele Arnaud Badel (Pascal Tixador)bull Others
bull Special topics meetingsbull Cable configurationcharacterizationbull Cable mechanical modelingbull Cable insulationbull hellip
bull Task 102 103 meeting next week ndash to be fixed
14
103
- HT
S Di
pole
des
ign
stud
ies
030
220
14
Splices Layer jump
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
15
ldquoAgendardquo
bull Design layouts studiesbull Open issues
bull laquo Field quality raquo conductorbull Conductor insulationbull Winding behaviorbull Mechanical characterizationbull Roebel cable impregnationbull Test coil
bull Actions listbull Meetings
2
103
- HT
S Di
pole
des
ign
stud
ies
030
220
14
Design layouts
D101 Conceptual study of HTS accelerator magnets Nov 2014
bull YBCO Roebel cablebull Sheared block design CERNbull Cosine-theta design CEA
bull YBCO Stacked cablebull Block design INPGbull Cosine-theta design CEA
bull BSCCO Rutherford cablebull CCT design 8-strands cable LNBL + CERNbull Cosine-theta design 8-strands cable LNBLbull Cosine-theta design 28-strands cable CEA andor LNBLbull Block design Texas AampM
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
3
bull high Jc conductor high JE cablebull JE (B20T 42K) = 600 Ammsup2 (actual baseline) 400 Ammsup2 (new baseline)
bull field homogeneity low AC losses transposed cable configuration bull ok for BiSCCO Rutherford cables bull Ok for Roebel cables current distribution studies bull for stacked tapes cable cable transposition is proposed
bull (a) at coil endsbull (b) pole-to-polebull Need for AC-losses measurements on tapes and stacksbull Need for transposition modeling bull Geometry dependencebull positioning defaults impact
bull Need for fully twisted stacked tapesbull precise and controlled dimensions
bull an issue for YBCO Roebel Need for cable characterization winding testsbull an issue for twisted stacked tapes twist region configuration studiesbull ok for BiSCCO Rutherford cable (HT 900degC)
ldquoField qualityrdquo accelerator cable 1
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
4
(a)
(b)
ldquoField qualityrdquo accelerator cable 2bull mechanical strengthbull An issue for non impregnated Roebel cablesbull An issue for twisted stacked tapesbull Need for cable mechanical modeling
bull mechanical stabilitybull An issue for Roebel cables support impregnation
bull windability (bending radius)bull Ok for BiSCCO Rutherford cablebull To be demonstrated for YBCO cables
bull Tensile stress limitbull Bending behavior Jc degradation delamination
bull protectionbull Need for high current cable
bull Acceptable minimal value 5kA Source Calculation hypothesisbull Need for Copper stabilizer
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
5
Conductor insulation
bull Insulation candidates - YBCO cablebull Polyester coating (EuCARD HTS insert) bull Kapton bull Polyester heat shrink tubing
bull Glass fiber tape compatible with cable impregnation
bull Insulation candidate - BiSCCO cable 900 degC HT compatiblebull Glass fiber tape bull TiO2-PPC
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
6
Polyester heat shrink tubing from Advanced Polymers Inc used for Y10-04 test coil at NHMFL
Winding behavior ndash Roebel 1
bull Bending propertiesbull easy way bending (out of plane)
bull at CERN (J Fleiter) R gt 4 mmbull at CERN (Jeroen) R gt 11 mm for KIT cable Studies on link between
transposition pitch and bending radiusbull at KIT
bull hard way bending (in plane)bull R gt 900 mm (J Fleiter)bull R gt 2m (Jeroen GC cable)
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
7
Winding behavior ndash Roebel 2
bull Cable handling winding proceduresbull studies starting at CEAbull tension stress limit
bull From Bumby et al Failure axial tensile stress 146 MPa for the meander tape and 113 MPa for the Roebel cable (625 Mpa for the straight conductor)
bull Stress distribution between strands bull Shall we have to stop at tension stress limit of a strand
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
8
Winding behavior - Stacked tapes
bull Bending propertiesbull easy way bending (out of plane)
bull R gt 10 mm (Jeacuterocircme Fleiter)bull hard way bending (in plane)
R gt 900 mm (Jeacuterocircme Fleiter)
bull Cable handling winding proceduresbull studies starting at CEA bull EuCARD HTS Insert
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
9
Mechanical characterization ndash Roebelbull Transverse pressure studiesbull at CERN (J Fleiter)
bull Non homogeneous stress distribution across the length and across the section (a)
bull Measured no Ic reduction up to 45 MPa of average transverse stressbull at KIT (Bayer et al)
bull Measured 10 reversible Ic reduction starting from 14 MPa of average transverse stress (b)
bull at CERN (J van Nutgeren G Kirby)
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
10
Roebel cable impregnation
bull Transverse stress reinforcementbull Copper strips between YBCO tapes bull Cable impregnation
bull at CERNbull discussion with CTD for fillers bull ten stack test campaign contraction and thermal conductivity young
modulus contact resistance breakdown voltage of turn to turn insulation
bull at KITbull Tests on filler materials together with Twente University
bull Need for Roebel cable modelingbull Need for dummy YBCO cable to test for delamination issues
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
11
Test coil
bull SMC type coil
bull Feather - M0 coil (Jeroen CERN)
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
12
Feather-M0Purpose - learn winding (mechanical)Standalone - 0620 T (wo iron)In background (13T) - 0620 1048744T (wo iron)Number of turns - 4Operating current - 90 kAInductance (self) - 45 microHStraight Section - 40 mm (incl layer jump)Cable length - 20 m (2 poles)ApertureOuter size - 4069 mm (Fresca-III)
Actionsbull Conductor design (number of tapes twist pitch ) task 102bull AC-losses measurements on tapes and stacks Grenoble is checking
for tests possibilities at CRETAbull Cable transposition modeling INPGbull twist region configuration studies INPGbull Roebel cable mechanical modeling CEA or CERNbull impregnation CERN has purchased a set of different resins to
evaluate the impact onbull Mechanical reinforcement starting with stainless-steel cablebull Differential thermal contraction delamination need for YBCO cablebull Contact resistance
bull cable characterization winding testsbull mechanical tests CERNbull winding procedures tests CEA
bull quench detection system (CERN collaboration with Ramesh Gupta)bull protection start with new cables modeling
13
103
- HT
S Di
pole
des
ign
stud
ies
030
220
14
Meetingsbull EuCARD2 1st Annual Meeting + Workshop on HTS for accelerators
bull DESY Laboratory in Hamburgbull Monday May 19th to Tuesday May 20th general sessionsbull Wednesday May 21st to Thursday May 22nd workshop on HTS for accelerators
bull Regular short progress meetingsbull We would like to fix a weekly meeting a window to merge studies progress done
problems need for special topics meetingsbull Do not look for everyone to be present bull A doodle to find the best daytime will be prepared by Mariabull Only design people could be involved in a first time
bull CEA Maria Durante Cleacutement Lorinbull CERN Glyn Kirby Jeroen van Nugteren (Gijs de Rijk)bull INPG John Himbele Arnaud Badel (Pascal Tixador)bull Others
bull Special topics meetingsbull Cable configurationcharacterizationbull Cable mechanical modelingbull Cable insulationbull hellip
bull Task 102 103 meeting next week ndash to be fixed
14
103
- HT
S Di
pole
des
ign
stud
ies
030
220
14
Splices Layer jump
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
15
Design layouts
D101 Conceptual study of HTS accelerator magnets Nov 2014
bull YBCO Roebel cablebull Sheared block design CERNbull Cosine-theta design CEA
bull YBCO Stacked cablebull Block design INPGbull Cosine-theta design CEA
bull BSCCO Rutherford cablebull CCT design 8-strands cable LNBL + CERNbull Cosine-theta design 8-strands cable LNBLbull Cosine-theta design 28-strands cable CEA andor LNBLbull Block design Texas AampM
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
3
bull high Jc conductor high JE cablebull JE (B20T 42K) = 600 Ammsup2 (actual baseline) 400 Ammsup2 (new baseline)
bull field homogeneity low AC losses transposed cable configuration bull ok for BiSCCO Rutherford cables bull Ok for Roebel cables current distribution studies bull for stacked tapes cable cable transposition is proposed
bull (a) at coil endsbull (b) pole-to-polebull Need for AC-losses measurements on tapes and stacksbull Need for transposition modeling bull Geometry dependencebull positioning defaults impact
bull Need for fully twisted stacked tapesbull precise and controlled dimensions
bull an issue for YBCO Roebel Need for cable characterization winding testsbull an issue for twisted stacked tapes twist region configuration studiesbull ok for BiSCCO Rutherford cable (HT 900degC)
ldquoField qualityrdquo accelerator cable 1
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
4
(a)
(b)
ldquoField qualityrdquo accelerator cable 2bull mechanical strengthbull An issue for non impregnated Roebel cablesbull An issue for twisted stacked tapesbull Need for cable mechanical modeling
bull mechanical stabilitybull An issue for Roebel cables support impregnation
bull windability (bending radius)bull Ok for BiSCCO Rutherford cablebull To be demonstrated for YBCO cables
bull Tensile stress limitbull Bending behavior Jc degradation delamination
bull protectionbull Need for high current cable
bull Acceptable minimal value 5kA Source Calculation hypothesisbull Need for Copper stabilizer
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
5
Conductor insulation
bull Insulation candidates - YBCO cablebull Polyester coating (EuCARD HTS insert) bull Kapton bull Polyester heat shrink tubing
bull Glass fiber tape compatible with cable impregnation
bull Insulation candidate - BiSCCO cable 900 degC HT compatiblebull Glass fiber tape bull TiO2-PPC
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
6
Polyester heat shrink tubing from Advanced Polymers Inc used for Y10-04 test coil at NHMFL
Winding behavior ndash Roebel 1
bull Bending propertiesbull easy way bending (out of plane)
bull at CERN (J Fleiter) R gt 4 mmbull at CERN (Jeroen) R gt 11 mm for KIT cable Studies on link between
transposition pitch and bending radiusbull at KIT
bull hard way bending (in plane)bull R gt 900 mm (J Fleiter)bull R gt 2m (Jeroen GC cable)
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
7
Winding behavior ndash Roebel 2
bull Cable handling winding proceduresbull studies starting at CEAbull tension stress limit
bull From Bumby et al Failure axial tensile stress 146 MPa for the meander tape and 113 MPa for the Roebel cable (625 Mpa for the straight conductor)
bull Stress distribution between strands bull Shall we have to stop at tension stress limit of a strand
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
8
Winding behavior - Stacked tapes
bull Bending propertiesbull easy way bending (out of plane)
bull R gt 10 mm (Jeacuterocircme Fleiter)bull hard way bending (in plane)
R gt 900 mm (Jeacuterocircme Fleiter)
bull Cable handling winding proceduresbull studies starting at CEA bull EuCARD HTS Insert
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
9
Mechanical characterization ndash Roebelbull Transverse pressure studiesbull at CERN (J Fleiter)
bull Non homogeneous stress distribution across the length and across the section (a)
bull Measured no Ic reduction up to 45 MPa of average transverse stressbull at KIT (Bayer et al)
bull Measured 10 reversible Ic reduction starting from 14 MPa of average transverse stress (b)
bull at CERN (J van Nutgeren G Kirby)
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
10
Roebel cable impregnation
bull Transverse stress reinforcementbull Copper strips between YBCO tapes bull Cable impregnation
bull at CERNbull discussion with CTD for fillers bull ten stack test campaign contraction and thermal conductivity young
modulus contact resistance breakdown voltage of turn to turn insulation
bull at KITbull Tests on filler materials together with Twente University
bull Need for Roebel cable modelingbull Need for dummy YBCO cable to test for delamination issues
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
11
Test coil
bull SMC type coil
bull Feather - M0 coil (Jeroen CERN)
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
12
Feather-M0Purpose - learn winding (mechanical)Standalone - 0620 T (wo iron)In background (13T) - 0620 1048744T (wo iron)Number of turns - 4Operating current - 90 kAInductance (self) - 45 microHStraight Section - 40 mm (incl layer jump)Cable length - 20 m (2 poles)ApertureOuter size - 4069 mm (Fresca-III)
Actionsbull Conductor design (number of tapes twist pitch ) task 102bull AC-losses measurements on tapes and stacks Grenoble is checking
for tests possibilities at CRETAbull Cable transposition modeling INPGbull twist region configuration studies INPGbull Roebel cable mechanical modeling CEA or CERNbull impregnation CERN has purchased a set of different resins to
evaluate the impact onbull Mechanical reinforcement starting with stainless-steel cablebull Differential thermal contraction delamination need for YBCO cablebull Contact resistance
bull cable characterization winding testsbull mechanical tests CERNbull winding procedures tests CEA
bull quench detection system (CERN collaboration with Ramesh Gupta)bull protection start with new cables modeling
13
103
- HT
S Di
pole
des
ign
stud
ies
030
220
14
Meetingsbull EuCARD2 1st Annual Meeting + Workshop on HTS for accelerators
bull DESY Laboratory in Hamburgbull Monday May 19th to Tuesday May 20th general sessionsbull Wednesday May 21st to Thursday May 22nd workshop on HTS for accelerators
bull Regular short progress meetingsbull We would like to fix a weekly meeting a window to merge studies progress done
problems need for special topics meetingsbull Do not look for everyone to be present bull A doodle to find the best daytime will be prepared by Mariabull Only design people could be involved in a first time
bull CEA Maria Durante Cleacutement Lorinbull CERN Glyn Kirby Jeroen van Nugteren (Gijs de Rijk)bull INPG John Himbele Arnaud Badel (Pascal Tixador)bull Others
bull Special topics meetingsbull Cable configurationcharacterizationbull Cable mechanical modelingbull Cable insulationbull hellip
bull Task 102 103 meeting next week ndash to be fixed
14
103
- HT
S Di
pole
des
ign
stud
ies
030
220
14
Splices Layer jump
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
15
bull high Jc conductor high JE cablebull JE (B20T 42K) = 600 Ammsup2 (actual baseline) 400 Ammsup2 (new baseline)
bull field homogeneity low AC losses transposed cable configuration bull ok for BiSCCO Rutherford cables bull Ok for Roebel cables current distribution studies bull for stacked tapes cable cable transposition is proposed
bull (a) at coil endsbull (b) pole-to-polebull Need for AC-losses measurements on tapes and stacksbull Need for transposition modeling bull Geometry dependencebull positioning defaults impact
bull Need for fully twisted stacked tapesbull precise and controlled dimensions
bull an issue for YBCO Roebel Need for cable characterization winding testsbull an issue for twisted stacked tapes twist region configuration studiesbull ok for BiSCCO Rutherford cable (HT 900degC)
ldquoField qualityrdquo accelerator cable 1
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
4
(a)
(b)
ldquoField qualityrdquo accelerator cable 2bull mechanical strengthbull An issue for non impregnated Roebel cablesbull An issue for twisted stacked tapesbull Need for cable mechanical modeling
bull mechanical stabilitybull An issue for Roebel cables support impregnation
bull windability (bending radius)bull Ok for BiSCCO Rutherford cablebull To be demonstrated for YBCO cables
bull Tensile stress limitbull Bending behavior Jc degradation delamination
bull protectionbull Need for high current cable
bull Acceptable minimal value 5kA Source Calculation hypothesisbull Need for Copper stabilizer
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
5
Conductor insulation
bull Insulation candidates - YBCO cablebull Polyester coating (EuCARD HTS insert) bull Kapton bull Polyester heat shrink tubing
bull Glass fiber tape compatible with cable impregnation
bull Insulation candidate - BiSCCO cable 900 degC HT compatiblebull Glass fiber tape bull TiO2-PPC
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
6
Polyester heat shrink tubing from Advanced Polymers Inc used for Y10-04 test coil at NHMFL
Winding behavior ndash Roebel 1
bull Bending propertiesbull easy way bending (out of plane)
bull at CERN (J Fleiter) R gt 4 mmbull at CERN (Jeroen) R gt 11 mm for KIT cable Studies on link between
transposition pitch and bending radiusbull at KIT
bull hard way bending (in plane)bull R gt 900 mm (J Fleiter)bull R gt 2m (Jeroen GC cable)
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
7
Winding behavior ndash Roebel 2
bull Cable handling winding proceduresbull studies starting at CEAbull tension stress limit
bull From Bumby et al Failure axial tensile stress 146 MPa for the meander tape and 113 MPa for the Roebel cable (625 Mpa for the straight conductor)
bull Stress distribution between strands bull Shall we have to stop at tension stress limit of a strand
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
8
Winding behavior - Stacked tapes
bull Bending propertiesbull easy way bending (out of plane)
bull R gt 10 mm (Jeacuterocircme Fleiter)bull hard way bending (in plane)
R gt 900 mm (Jeacuterocircme Fleiter)
bull Cable handling winding proceduresbull studies starting at CEA bull EuCARD HTS Insert
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
9
Mechanical characterization ndash Roebelbull Transverse pressure studiesbull at CERN (J Fleiter)
bull Non homogeneous stress distribution across the length and across the section (a)
bull Measured no Ic reduction up to 45 MPa of average transverse stressbull at KIT (Bayer et al)
bull Measured 10 reversible Ic reduction starting from 14 MPa of average transverse stress (b)
bull at CERN (J van Nutgeren G Kirby)
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
10
Roebel cable impregnation
bull Transverse stress reinforcementbull Copper strips between YBCO tapes bull Cable impregnation
bull at CERNbull discussion with CTD for fillers bull ten stack test campaign contraction and thermal conductivity young
modulus contact resistance breakdown voltage of turn to turn insulation
bull at KITbull Tests on filler materials together with Twente University
bull Need for Roebel cable modelingbull Need for dummy YBCO cable to test for delamination issues
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
11
Test coil
bull SMC type coil
bull Feather - M0 coil (Jeroen CERN)
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
12
Feather-M0Purpose - learn winding (mechanical)Standalone - 0620 T (wo iron)In background (13T) - 0620 1048744T (wo iron)Number of turns - 4Operating current - 90 kAInductance (self) - 45 microHStraight Section - 40 mm (incl layer jump)Cable length - 20 m (2 poles)ApertureOuter size - 4069 mm (Fresca-III)
Actionsbull Conductor design (number of tapes twist pitch ) task 102bull AC-losses measurements on tapes and stacks Grenoble is checking
for tests possibilities at CRETAbull Cable transposition modeling INPGbull twist region configuration studies INPGbull Roebel cable mechanical modeling CEA or CERNbull impregnation CERN has purchased a set of different resins to
evaluate the impact onbull Mechanical reinforcement starting with stainless-steel cablebull Differential thermal contraction delamination need for YBCO cablebull Contact resistance
bull cable characterization winding testsbull mechanical tests CERNbull winding procedures tests CEA
bull quench detection system (CERN collaboration with Ramesh Gupta)bull protection start with new cables modeling
13
103
- HT
S Di
pole
des
ign
stud
ies
030
220
14
Meetingsbull EuCARD2 1st Annual Meeting + Workshop on HTS for accelerators
bull DESY Laboratory in Hamburgbull Monday May 19th to Tuesday May 20th general sessionsbull Wednesday May 21st to Thursday May 22nd workshop on HTS for accelerators
bull Regular short progress meetingsbull We would like to fix a weekly meeting a window to merge studies progress done
problems need for special topics meetingsbull Do not look for everyone to be present bull A doodle to find the best daytime will be prepared by Mariabull Only design people could be involved in a first time
bull CEA Maria Durante Cleacutement Lorinbull CERN Glyn Kirby Jeroen van Nugteren (Gijs de Rijk)bull INPG John Himbele Arnaud Badel (Pascal Tixador)bull Others
bull Special topics meetingsbull Cable configurationcharacterizationbull Cable mechanical modelingbull Cable insulationbull hellip
bull Task 102 103 meeting next week ndash to be fixed
14
103
- HT
S Di
pole
des
ign
stud
ies
030
220
14
Splices Layer jump
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
15
ldquoField qualityrdquo accelerator cable 2bull mechanical strengthbull An issue for non impregnated Roebel cablesbull An issue for twisted stacked tapesbull Need for cable mechanical modeling
bull mechanical stabilitybull An issue for Roebel cables support impregnation
bull windability (bending radius)bull Ok for BiSCCO Rutherford cablebull To be demonstrated for YBCO cables
bull Tensile stress limitbull Bending behavior Jc degradation delamination
bull protectionbull Need for high current cable
bull Acceptable minimal value 5kA Source Calculation hypothesisbull Need for Copper stabilizer
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
5
Conductor insulation
bull Insulation candidates - YBCO cablebull Polyester coating (EuCARD HTS insert) bull Kapton bull Polyester heat shrink tubing
bull Glass fiber tape compatible with cable impregnation
bull Insulation candidate - BiSCCO cable 900 degC HT compatiblebull Glass fiber tape bull TiO2-PPC
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
6
Polyester heat shrink tubing from Advanced Polymers Inc used for Y10-04 test coil at NHMFL
Winding behavior ndash Roebel 1
bull Bending propertiesbull easy way bending (out of plane)
bull at CERN (J Fleiter) R gt 4 mmbull at CERN (Jeroen) R gt 11 mm for KIT cable Studies on link between
transposition pitch and bending radiusbull at KIT
bull hard way bending (in plane)bull R gt 900 mm (J Fleiter)bull R gt 2m (Jeroen GC cable)
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
7
Winding behavior ndash Roebel 2
bull Cable handling winding proceduresbull studies starting at CEAbull tension stress limit
bull From Bumby et al Failure axial tensile stress 146 MPa for the meander tape and 113 MPa for the Roebel cable (625 Mpa for the straight conductor)
bull Stress distribution between strands bull Shall we have to stop at tension stress limit of a strand
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
8
Winding behavior - Stacked tapes
bull Bending propertiesbull easy way bending (out of plane)
bull R gt 10 mm (Jeacuterocircme Fleiter)bull hard way bending (in plane)
R gt 900 mm (Jeacuterocircme Fleiter)
bull Cable handling winding proceduresbull studies starting at CEA bull EuCARD HTS Insert
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
9
Mechanical characterization ndash Roebelbull Transverse pressure studiesbull at CERN (J Fleiter)
bull Non homogeneous stress distribution across the length and across the section (a)
bull Measured no Ic reduction up to 45 MPa of average transverse stressbull at KIT (Bayer et al)
bull Measured 10 reversible Ic reduction starting from 14 MPa of average transverse stress (b)
bull at CERN (J van Nutgeren G Kirby)
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
10
Roebel cable impregnation
bull Transverse stress reinforcementbull Copper strips between YBCO tapes bull Cable impregnation
bull at CERNbull discussion with CTD for fillers bull ten stack test campaign contraction and thermal conductivity young
modulus contact resistance breakdown voltage of turn to turn insulation
bull at KITbull Tests on filler materials together with Twente University
bull Need for Roebel cable modelingbull Need for dummy YBCO cable to test for delamination issues
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
11
Test coil
bull SMC type coil
bull Feather - M0 coil (Jeroen CERN)
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
12
Feather-M0Purpose - learn winding (mechanical)Standalone - 0620 T (wo iron)In background (13T) - 0620 1048744T (wo iron)Number of turns - 4Operating current - 90 kAInductance (self) - 45 microHStraight Section - 40 mm (incl layer jump)Cable length - 20 m (2 poles)ApertureOuter size - 4069 mm (Fresca-III)
Actionsbull Conductor design (number of tapes twist pitch ) task 102bull AC-losses measurements on tapes and stacks Grenoble is checking
for tests possibilities at CRETAbull Cable transposition modeling INPGbull twist region configuration studies INPGbull Roebel cable mechanical modeling CEA or CERNbull impregnation CERN has purchased a set of different resins to
evaluate the impact onbull Mechanical reinforcement starting with stainless-steel cablebull Differential thermal contraction delamination need for YBCO cablebull Contact resistance
bull cable characterization winding testsbull mechanical tests CERNbull winding procedures tests CEA
bull quench detection system (CERN collaboration with Ramesh Gupta)bull protection start with new cables modeling
13
103
- HT
S Di
pole
des
ign
stud
ies
030
220
14
Meetingsbull EuCARD2 1st Annual Meeting + Workshop on HTS for accelerators
bull DESY Laboratory in Hamburgbull Monday May 19th to Tuesday May 20th general sessionsbull Wednesday May 21st to Thursday May 22nd workshop on HTS for accelerators
bull Regular short progress meetingsbull We would like to fix a weekly meeting a window to merge studies progress done
problems need for special topics meetingsbull Do not look for everyone to be present bull A doodle to find the best daytime will be prepared by Mariabull Only design people could be involved in a first time
bull CEA Maria Durante Cleacutement Lorinbull CERN Glyn Kirby Jeroen van Nugteren (Gijs de Rijk)bull INPG John Himbele Arnaud Badel (Pascal Tixador)bull Others
bull Special topics meetingsbull Cable configurationcharacterizationbull Cable mechanical modelingbull Cable insulationbull hellip
bull Task 102 103 meeting next week ndash to be fixed
14
103
- HT
S Di
pole
des
ign
stud
ies
030
220
14
Splices Layer jump
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
15
Conductor insulation
bull Insulation candidates - YBCO cablebull Polyester coating (EuCARD HTS insert) bull Kapton bull Polyester heat shrink tubing
bull Glass fiber tape compatible with cable impregnation
bull Insulation candidate - BiSCCO cable 900 degC HT compatiblebull Glass fiber tape bull TiO2-PPC
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
6
Polyester heat shrink tubing from Advanced Polymers Inc used for Y10-04 test coil at NHMFL
Winding behavior ndash Roebel 1
bull Bending propertiesbull easy way bending (out of plane)
bull at CERN (J Fleiter) R gt 4 mmbull at CERN (Jeroen) R gt 11 mm for KIT cable Studies on link between
transposition pitch and bending radiusbull at KIT
bull hard way bending (in plane)bull R gt 900 mm (J Fleiter)bull R gt 2m (Jeroen GC cable)
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
7
Winding behavior ndash Roebel 2
bull Cable handling winding proceduresbull studies starting at CEAbull tension stress limit
bull From Bumby et al Failure axial tensile stress 146 MPa for the meander tape and 113 MPa for the Roebel cable (625 Mpa for the straight conductor)
bull Stress distribution between strands bull Shall we have to stop at tension stress limit of a strand
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
8
Winding behavior - Stacked tapes
bull Bending propertiesbull easy way bending (out of plane)
bull R gt 10 mm (Jeacuterocircme Fleiter)bull hard way bending (in plane)
R gt 900 mm (Jeacuterocircme Fleiter)
bull Cable handling winding proceduresbull studies starting at CEA bull EuCARD HTS Insert
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
9
Mechanical characterization ndash Roebelbull Transverse pressure studiesbull at CERN (J Fleiter)
bull Non homogeneous stress distribution across the length and across the section (a)
bull Measured no Ic reduction up to 45 MPa of average transverse stressbull at KIT (Bayer et al)
bull Measured 10 reversible Ic reduction starting from 14 MPa of average transverse stress (b)
bull at CERN (J van Nutgeren G Kirby)
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
10
Roebel cable impregnation
bull Transverse stress reinforcementbull Copper strips between YBCO tapes bull Cable impregnation
bull at CERNbull discussion with CTD for fillers bull ten stack test campaign contraction and thermal conductivity young
modulus contact resistance breakdown voltage of turn to turn insulation
bull at KITbull Tests on filler materials together with Twente University
bull Need for Roebel cable modelingbull Need for dummy YBCO cable to test for delamination issues
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
11
Test coil
bull SMC type coil
bull Feather - M0 coil (Jeroen CERN)
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
12
Feather-M0Purpose - learn winding (mechanical)Standalone - 0620 T (wo iron)In background (13T) - 0620 1048744T (wo iron)Number of turns - 4Operating current - 90 kAInductance (self) - 45 microHStraight Section - 40 mm (incl layer jump)Cable length - 20 m (2 poles)ApertureOuter size - 4069 mm (Fresca-III)
Actionsbull Conductor design (number of tapes twist pitch ) task 102bull AC-losses measurements on tapes and stacks Grenoble is checking
for tests possibilities at CRETAbull Cable transposition modeling INPGbull twist region configuration studies INPGbull Roebel cable mechanical modeling CEA or CERNbull impregnation CERN has purchased a set of different resins to
evaluate the impact onbull Mechanical reinforcement starting with stainless-steel cablebull Differential thermal contraction delamination need for YBCO cablebull Contact resistance
bull cable characterization winding testsbull mechanical tests CERNbull winding procedures tests CEA
bull quench detection system (CERN collaboration with Ramesh Gupta)bull protection start with new cables modeling
13
103
- HT
S Di
pole
des
ign
stud
ies
030
220
14
Meetingsbull EuCARD2 1st Annual Meeting + Workshop on HTS for accelerators
bull DESY Laboratory in Hamburgbull Monday May 19th to Tuesday May 20th general sessionsbull Wednesday May 21st to Thursday May 22nd workshop on HTS for accelerators
bull Regular short progress meetingsbull We would like to fix a weekly meeting a window to merge studies progress done
problems need for special topics meetingsbull Do not look for everyone to be present bull A doodle to find the best daytime will be prepared by Mariabull Only design people could be involved in a first time
bull CEA Maria Durante Cleacutement Lorinbull CERN Glyn Kirby Jeroen van Nugteren (Gijs de Rijk)bull INPG John Himbele Arnaud Badel (Pascal Tixador)bull Others
bull Special topics meetingsbull Cable configurationcharacterizationbull Cable mechanical modelingbull Cable insulationbull hellip
bull Task 102 103 meeting next week ndash to be fixed
14
103
- HT
S Di
pole
des
ign
stud
ies
030
220
14
Splices Layer jump
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
15
Winding behavior ndash Roebel 1
bull Bending propertiesbull easy way bending (out of plane)
bull at CERN (J Fleiter) R gt 4 mmbull at CERN (Jeroen) R gt 11 mm for KIT cable Studies on link between
transposition pitch and bending radiusbull at KIT
bull hard way bending (in plane)bull R gt 900 mm (J Fleiter)bull R gt 2m (Jeroen GC cable)
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
7
Winding behavior ndash Roebel 2
bull Cable handling winding proceduresbull studies starting at CEAbull tension stress limit
bull From Bumby et al Failure axial tensile stress 146 MPa for the meander tape and 113 MPa for the Roebel cable (625 Mpa for the straight conductor)
bull Stress distribution between strands bull Shall we have to stop at tension stress limit of a strand
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
8
Winding behavior - Stacked tapes
bull Bending propertiesbull easy way bending (out of plane)
bull R gt 10 mm (Jeacuterocircme Fleiter)bull hard way bending (in plane)
R gt 900 mm (Jeacuterocircme Fleiter)
bull Cable handling winding proceduresbull studies starting at CEA bull EuCARD HTS Insert
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
9
Mechanical characterization ndash Roebelbull Transverse pressure studiesbull at CERN (J Fleiter)
bull Non homogeneous stress distribution across the length and across the section (a)
bull Measured no Ic reduction up to 45 MPa of average transverse stressbull at KIT (Bayer et al)
bull Measured 10 reversible Ic reduction starting from 14 MPa of average transverse stress (b)
bull at CERN (J van Nutgeren G Kirby)
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
10
Roebel cable impregnation
bull Transverse stress reinforcementbull Copper strips between YBCO tapes bull Cable impregnation
bull at CERNbull discussion with CTD for fillers bull ten stack test campaign contraction and thermal conductivity young
modulus contact resistance breakdown voltage of turn to turn insulation
bull at KITbull Tests on filler materials together with Twente University
bull Need for Roebel cable modelingbull Need for dummy YBCO cable to test for delamination issues
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
11
Test coil
bull SMC type coil
bull Feather - M0 coil (Jeroen CERN)
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
12
Feather-M0Purpose - learn winding (mechanical)Standalone - 0620 T (wo iron)In background (13T) - 0620 1048744T (wo iron)Number of turns - 4Operating current - 90 kAInductance (self) - 45 microHStraight Section - 40 mm (incl layer jump)Cable length - 20 m (2 poles)ApertureOuter size - 4069 mm (Fresca-III)
Actionsbull Conductor design (number of tapes twist pitch ) task 102bull AC-losses measurements on tapes and stacks Grenoble is checking
for tests possibilities at CRETAbull Cable transposition modeling INPGbull twist region configuration studies INPGbull Roebel cable mechanical modeling CEA or CERNbull impregnation CERN has purchased a set of different resins to
evaluate the impact onbull Mechanical reinforcement starting with stainless-steel cablebull Differential thermal contraction delamination need for YBCO cablebull Contact resistance
bull cable characterization winding testsbull mechanical tests CERNbull winding procedures tests CEA
bull quench detection system (CERN collaboration with Ramesh Gupta)bull protection start with new cables modeling
13
103
- HT
S Di
pole
des
ign
stud
ies
030
220
14
Meetingsbull EuCARD2 1st Annual Meeting + Workshop on HTS for accelerators
bull DESY Laboratory in Hamburgbull Monday May 19th to Tuesday May 20th general sessionsbull Wednesday May 21st to Thursday May 22nd workshop on HTS for accelerators
bull Regular short progress meetingsbull We would like to fix a weekly meeting a window to merge studies progress done
problems need for special topics meetingsbull Do not look for everyone to be present bull A doodle to find the best daytime will be prepared by Mariabull Only design people could be involved in a first time
bull CEA Maria Durante Cleacutement Lorinbull CERN Glyn Kirby Jeroen van Nugteren (Gijs de Rijk)bull INPG John Himbele Arnaud Badel (Pascal Tixador)bull Others
bull Special topics meetingsbull Cable configurationcharacterizationbull Cable mechanical modelingbull Cable insulationbull hellip
bull Task 102 103 meeting next week ndash to be fixed
14
103
- HT
S Di
pole
des
ign
stud
ies
030
220
14
Splices Layer jump
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
15
Winding behavior ndash Roebel 2
bull Cable handling winding proceduresbull studies starting at CEAbull tension stress limit
bull From Bumby et al Failure axial tensile stress 146 MPa for the meander tape and 113 MPa for the Roebel cable (625 Mpa for the straight conductor)
bull Stress distribution between strands bull Shall we have to stop at tension stress limit of a strand
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
8
Winding behavior - Stacked tapes
bull Bending propertiesbull easy way bending (out of plane)
bull R gt 10 mm (Jeacuterocircme Fleiter)bull hard way bending (in plane)
R gt 900 mm (Jeacuterocircme Fleiter)
bull Cable handling winding proceduresbull studies starting at CEA bull EuCARD HTS Insert
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
9
Mechanical characterization ndash Roebelbull Transverse pressure studiesbull at CERN (J Fleiter)
bull Non homogeneous stress distribution across the length and across the section (a)
bull Measured no Ic reduction up to 45 MPa of average transverse stressbull at KIT (Bayer et al)
bull Measured 10 reversible Ic reduction starting from 14 MPa of average transverse stress (b)
bull at CERN (J van Nutgeren G Kirby)
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
10
Roebel cable impregnation
bull Transverse stress reinforcementbull Copper strips between YBCO tapes bull Cable impregnation
bull at CERNbull discussion with CTD for fillers bull ten stack test campaign contraction and thermal conductivity young
modulus contact resistance breakdown voltage of turn to turn insulation
bull at KITbull Tests on filler materials together with Twente University
bull Need for Roebel cable modelingbull Need for dummy YBCO cable to test for delamination issues
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
11
Test coil
bull SMC type coil
bull Feather - M0 coil (Jeroen CERN)
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
12
Feather-M0Purpose - learn winding (mechanical)Standalone - 0620 T (wo iron)In background (13T) - 0620 1048744T (wo iron)Number of turns - 4Operating current - 90 kAInductance (self) - 45 microHStraight Section - 40 mm (incl layer jump)Cable length - 20 m (2 poles)ApertureOuter size - 4069 mm (Fresca-III)
Actionsbull Conductor design (number of tapes twist pitch ) task 102bull AC-losses measurements on tapes and stacks Grenoble is checking
for tests possibilities at CRETAbull Cable transposition modeling INPGbull twist region configuration studies INPGbull Roebel cable mechanical modeling CEA or CERNbull impregnation CERN has purchased a set of different resins to
evaluate the impact onbull Mechanical reinforcement starting with stainless-steel cablebull Differential thermal contraction delamination need for YBCO cablebull Contact resistance
bull cable characterization winding testsbull mechanical tests CERNbull winding procedures tests CEA
bull quench detection system (CERN collaboration with Ramesh Gupta)bull protection start with new cables modeling
13
103
- HT
S Di
pole
des
ign
stud
ies
030
220
14
Meetingsbull EuCARD2 1st Annual Meeting + Workshop on HTS for accelerators
bull DESY Laboratory in Hamburgbull Monday May 19th to Tuesday May 20th general sessionsbull Wednesday May 21st to Thursday May 22nd workshop on HTS for accelerators
bull Regular short progress meetingsbull We would like to fix a weekly meeting a window to merge studies progress done
problems need for special topics meetingsbull Do not look for everyone to be present bull A doodle to find the best daytime will be prepared by Mariabull Only design people could be involved in a first time
bull CEA Maria Durante Cleacutement Lorinbull CERN Glyn Kirby Jeroen van Nugteren (Gijs de Rijk)bull INPG John Himbele Arnaud Badel (Pascal Tixador)bull Others
bull Special topics meetingsbull Cable configurationcharacterizationbull Cable mechanical modelingbull Cable insulationbull hellip
bull Task 102 103 meeting next week ndash to be fixed
14
103
- HT
S Di
pole
des
ign
stud
ies
030
220
14
Splices Layer jump
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
15
Winding behavior - Stacked tapes
bull Bending propertiesbull easy way bending (out of plane)
bull R gt 10 mm (Jeacuterocircme Fleiter)bull hard way bending (in plane)
R gt 900 mm (Jeacuterocircme Fleiter)
bull Cable handling winding proceduresbull studies starting at CEA bull EuCARD HTS Insert
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
9
Mechanical characterization ndash Roebelbull Transverse pressure studiesbull at CERN (J Fleiter)
bull Non homogeneous stress distribution across the length and across the section (a)
bull Measured no Ic reduction up to 45 MPa of average transverse stressbull at KIT (Bayer et al)
bull Measured 10 reversible Ic reduction starting from 14 MPa of average transverse stress (b)
bull at CERN (J van Nutgeren G Kirby)
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
10
Roebel cable impregnation
bull Transverse stress reinforcementbull Copper strips between YBCO tapes bull Cable impregnation
bull at CERNbull discussion with CTD for fillers bull ten stack test campaign contraction and thermal conductivity young
modulus contact resistance breakdown voltage of turn to turn insulation
bull at KITbull Tests on filler materials together with Twente University
bull Need for Roebel cable modelingbull Need for dummy YBCO cable to test for delamination issues
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
11
Test coil
bull SMC type coil
bull Feather - M0 coil (Jeroen CERN)
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
12
Feather-M0Purpose - learn winding (mechanical)Standalone - 0620 T (wo iron)In background (13T) - 0620 1048744T (wo iron)Number of turns - 4Operating current - 90 kAInductance (self) - 45 microHStraight Section - 40 mm (incl layer jump)Cable length - 20 m (2 poles)ApertureOuter size - 4069 mm (Fresca-III)
Actionsbull Conductor design (number of tapes twist pitch ) task 102bull AC-losses measurements on tapes and stacks Grenoble is checking
for tests possibilities at CRETAbull Cable transposition modeling INPGbull twist region configuration studies INPGbull Roebel cable mechanical modeling CEA or CERNbull impregnation CERN has purchased a set of different resins to
evaluate the impact onbull Mechanical reinforcement starting with stainless-steel cablebull Differential thermal contraction delamination need for YBCO cablebull Contact resistance
bull cable characterization winding testsbull mechanical tests CERNbull winding procedures tests CEA
bull quench detection system (CERN collaboration with Ramesh Gupta)bull protection start with new cables modeling
13
103
- HT
S Di
pole
des
ign
stud
ies
030
220
14
Meetingsbull EuCARD2 1st Annual Meeting + Workshop on HTS for accelerators
bull DESY Laboratory in Hamburgbull Monday May 19th to Tuesday May 20th general sessionsbull Wednesday May 21st to Thursday May 22nd workshop on HTS for accelerators
bull Regular short progress meetingsbull We would like to fix a weekly meeting a window to merge studies progress done
problems need for special topics meetingsbull Do not look for everyone to be present bull A doodle to find the best daytime will be prepared by Mariabull Only design people could be involved in a first time
bull CEA Maria Durante Cleacutement Lorinbull CERN Glyn Kirby Jeroen van Nugteren (Gijs de Rijk)bull INPG John Himbele Arnaud Badel (Pascal Tixador)bull Others
bull Special topics meetingsbull Cable configurationcharacterizationbull Cable mechanical modelingbull Cable insulationbull hellip
bull Task 102 103 meeting next week ndash to be fixed
14
103
- HT
S Di
pole
des
ign
stud
ies
030
220
14
Splices Layer jump
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
15
Mechanical characterization ndash Roebelbull Transverse pressure studiesbull at CERN (J Fleiter)
bull Non homogeneous stress distribution across the length and across the section (a)
bull Measured no Ic reduction up to 45 MPa of average transverse stressbull at KIT (Bayer et al)
bull Measured 10 reversible Ic reduction starting from 14 MPa of average transverse stress (b)
bull at CERN (J van Nutgeren G Kirby)
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
10
Roebel cable impregnation
bull Transverse stress reinforcementbull Copper strips between YBCO tapes bull Cable impregnation
bull at CERNbull discussion with CTD for fillers bull ten stack test campaign contraction and thermal conductivity young
modulus contact resistance breakdown voltage of turn to turn insulation
bull at KITbull Tests on filler materials together with Twente University
bull Need for Roebel cable modelingbull Need for dummy YBCO cable to test for delamination issues
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
11
Test coil
bull SMC type coil
bull Feather - M0 coil (Jeroen CERN)
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
12
Feather-M0Purpose - learn winding (mechanical)Standalone - 0620 T (wo iron)In background (13T) - 0620 1048744T (wo iron)Number of turns - 4Operating current - 90 kAInductance (self) - 45 microHStraight Section - 40 mm (incl layer jump)Cable length - 20 m (2 poles)ApertureOuter size - 4069 mm (Fresca-III)
Actionsbull Conductor design (number of tapes twist pitch ) task 102bull AC-losses measurements on tapes and stacks Grenoble is checking
for tests possibilities at CRETAbull Cable transposition modeling INPGbull twist region configuration studies INPGbull Roebel cable mechanical modeling CEA or CERNbull impregnation CERN has purchased a set of different resins to
evaluate the impact onbull Mechanical reinforcement starting with stainless-steel cablebull Differential thermal contraction delamination need for YBCO cablebull Contact resistance
bull cable characterization winding testsbull mechanical tests CERNbull winding procedures tests CEA
bull quench detection system (CERN collaboration with Ramesh Gupta)bull protection start with new cables modeling
13
103
- HT
S Di
pole
des
ign
stud
ies
030
220
14
Meetingsbull EuCARD2 1st Annual Meeting + Workshop on HTS for accelerators
bull DESY Laboratory in Hamburgbull Monday May 19th to Tuesday May 20th general sessionsbull Wednesday May 21st to Thursday May 22nd workshop on HTS for accelerators
bull Regular short progress meetingsbull We would like to fix a weekly meeting a window to merge studies progress done
problems need for special topics meetingsbull Do not look for everyone to be present bull A doodle to find the best daytime will be prepared by Mariabull Only design people could be involved in a first time
bull CEA Maria Durante Cleacutement Lorinbull CERN Glyn Kirby Jeroen van Nugteren (Gijs de Rijk)bull INPG John Himbele Arnaud Badel (Pascal Tixador)bull Others
bull Special topics meetingsbull Cable configurationcharacterizationbull Cable mechanical modelingbull Cable insulationbull hellip
bull Task 102 103 meeting next week ndash to be fixed
14
103
- HT
S Di
pole
des
ign
stud
ies
030
220
14
Splices Layer jump
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
15
Roebel cable impregnation
bull Transverse stress reinforcementbull Copper strips between YBCO tapes bull Cable impregnation
bull at CERNbull discussion with CTD for fillers bull ten stack test campaign contraction and thermal conductivity young
modulus contact resistance breakdown voltage of turn to turn insulation
bull at KITbull Tests on filler materials together with Twente University
bull Need for Roebel cable modelingbull Need for dummy YBCO cable to test for delamination issues
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
11
Test coil
bull SMC type coil
bull Feather - M0 coil (Jeroen CERN)
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
12
Feather-M0Purpose - learn winding (mechanical)Standalone - 0620 T (wo iron)In background (13T) - 0620 1048744T (wo iron)Number of turns - 4Operating current - 90 kAInductance (self) - 45 microHStraight Section - 40 mm (incl layer jump)Cable length - 20 m (2 poles)ApertureOuter size - 4069 mm (Fresca-III)
Actionsbull Conductor design (number of tapes twist pitch ) task 102bull AC-losses measurements on tapes and stacks Grenoble is checking
for tests possibilities at CRETAbull Cable transposition modeling INPGbull twist region configuration studies INPGbull Roebel cable mechanical modeling CEA or CERNbull impregnation CERN has purchased a set of different resins to
evaluate the impact onbull Mechanical reinforcement starting with stainless-steel cablebull Differential thermal contraction delamination need for YBCO cablebull Contact resistance
bull cable characterization winding testsbull mechanical tests CERNbull winding procedures tests CEA
bull quench detection system (CERN collaboration with Ramesh Gupta)bull protection start with new cables modeling
13
103
- HT
S Di
pole
des
ign
stud
ies
030
220
14
Meetingsbull EuCARD2 1st Annual Meeting + Workshop on HTS for accelerators
bull DESY Laboratory in Hamburgbull Monday May 19th to Tuesday May 20th general sessionsbull Wednesday May 21st to Thursday May 22nd workshop on HTS for accelerators
bull Regular short progress meetingsbull We would like to fix a weekly meeting a window to merge studies progress done
problems need for special topics meetingsbull Do not look for everyone to be present bull A doodle to find the best daytime will be prepared by Mariabull Only design people could be involved in a first time
bull CEA Maria Durante Cleacutement Lorinbull CERN Glyn Kirby Jeroen van Nugteren (Gijs de Rijk)bull INPG John Himbele Arnaud Badel (Pascal Tixador)bull Others
bull Special topics meetingsbull Cable configurationcharacterizationbull Cable mechanical modelingbull Cable insulationbull hellip
bull Task 102 103 meeting next week ndash to be fixed
14
103
- HT
S Di
pole
des
ign
stud
ies
030
220
14
Splices Layer jump
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
15
Test coil
bull SMC type coil
bull Feather - M0 coil (Jeroen CERN)
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
12
Feather-M0Purpose - learn winding (mechanical)Standalone - 0620 T (wo iron)In background (13T) - 0620 1048744T (wo iron)Number of turns - 4Operating current - 90 kAInductance (self) - 45 microHStraight Section - 40 mm (incl layer jump)Cable length - 20 m (2 poles)ApertureOuter size - 4069 mm (Fresca-III)
Actionsbull Conductor design (number of tapes twist pitch ) task 102bull AC-losses measurements on tapes and stacks Grenoble is checking
for tests possibilities at CRETAbull Cable transposition modeling INPGbull twist region configuration studies INPGbull Roebel cable mechanical modeling CEA or CERNbull impregnation CERN has purchased a set of different resins to
evaluate the impact onbull Mechanical reinforcement starting with stainless-steel cablebull Differential thermal contraction delamination need for YBCO cablebull Contact resistance
bull cable characterization winding testsbull mechanical tests CERNbull winding procedures tests CEA
bull quench detection system (CERN collaboration with Ramesh Gupta)bull protection start with new cables modeling
13
103
- HT
S Di
pole
des
ign
stud
ies
030
220
14
Meetingsbull EuCARD2 1st Annual Meeting + Workshop on HTS for accelerators
bull DESY Laboratory in Hamburgbull Monday May 19th to Tuesday May 20th general sessionsbull Wednesday May 21st to Thursday May 22nd workshop on HTS for accelerators
bull Regular short progress meetingsbull We would like to fix a weekly meeting a window to merge studies progress done
problems need for special topics meetingsbull Do not look for everyone to be present bull A doodle to find the best daytime will be prepared by Mariabull Only design people could be involved in a first time
bull CEA Maria Durante Cleacutement Lorinbull CERN Glyn Kirby Jeroen van Nugteren (Gijs de Rijk)bull INPG John Himbele Arnaud Badel (Pascal Tixador)bull Others
bull Special topics meetingsbull Cable configurationcharacterizationbull Cable mechanical modelingbull Cable insulationbull hellip
bull Task 102 103 meeting next week ndash to be fixed
14
103
- HT
S Di
pole
des
ign
stud
ies
030
220
14
Splices Layer jump
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
15
Actionsbull Conductor design (number of tapes twist pitch ) task 102bull AC-losses measurements on tapes and stacks Grenoble is checking
for tests possibilities at CRETAbull Cable transposition modeling INPGbull twist region configuration studies INPGbull Roebel cable mechanical modeling CEA or CERNbull impregnation CERN has purchased a set of different resins to
evaluate the impact onbull Mechanical reinforcement starting with stainless-steel cablebull Differential thermal contraction delamination need for YBCO cablebull Contact resistance
bull cable characterization winding testsbull mechanical tests CERNbull winding procedures tests CEA
bull quench detection system (CERN collaboration with Ramesh Gupta)bull protection start with new cables modeling
13
103
- HT
S Di
pole
des
ign
stud
ies
030
220
14
Meetingsbull EuCARD2 1st Annual Meeting + Workshop on HTS for accelerators
bull DESY Laboratory in Hamburgbull Monday May 19th to Tuesday May 20th general sessionsbull Wednesday May 21st to Thursday May 22nd workshop on HTS for accelerators
bull Regular short progress meetingsbull We would like to fix a weekly meeting a window to merge studies progress done
problems need for special topics meetingsbull Do not look for everyone to be present bull A doodle to find the best daytime will be prepared by Mariabull Only design people could be involved in a first time
bull CEA Maria Durante Cleacutement Lorinbull CERN Glyn Kirby Jeroen van Nugteren (Gijs de Rijk)bull INPG John Himbele Arnaud Badel (Pascal Tixador)bull Others
bull Special topics meetingsbull Cable configurationcharacterizationbull Cable mechanical modelingbull Cable insulationbull hellip
bull Task 102 103 meeting next week ndash to be fixed
14
103
- HT
S Di
pole
des
ign
stud
ies
030
220
14
Splices Layer jump
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
15
Meetingsbull EuCARD2 1st Annual Meeting + Workshop on HTS for accelerators
bull DESY Laboratory in Hamburgbull Monday May 19th to Tuesday May 20th general sessionsbull Wednesday May 21st to Thursday May 22nd workshop on HTS for accelerators
bull Regular short progress meetingsbull We would like to fix a weekly meeting a window to merge studies progress done
problems need for special topics meetingsbull Do not look for everyone to be present bull A doodle to find the best daytime will be prepared by Mariabull Only design people could be involved in a first time
bull CEA Maria Durante Cleacutement Lorinbull CERN Glyn Kirby Jeroen van Nugteren (Gijs de Rijk)bull INPG John Himbele Arnaud Badel (Pascal Tixador)bull Others
bull Special topics meetingsbull Cable configurationcharacterizationbull Cable mechanical modelingbull Cable insulationbull hellip
bull Task 102 103 meeting next week ndash to be fixed
14
103
- HT
S Di
pole
des
ign
stud
ies
030
220
14
Splices Layer jump
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
15
Splices Layer jump
030
220
1410
3 -
HTS
Dipo
le d
esig
n st
udie
s
15
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