CBM-MPD STS consortium – status of activities Yuri Murin for the Consortium
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Transcript of CBM-MPD STS consortium – status of activities Yuri Murin for the Consortium
CBM-MPD STS consortium – status of activities
Yuri Murin for the Consortium
– Engineering of STS module, ladder, station– Cooling system concept and plans for
prototyping– Demonstrator development– Sensor development– Radiation hardness certification– Preparations for the in-beam tests – Infrastucture improvement – Networking
Engineering of STS module, ladder, station
– Ladders: Engineering of the non-central ladders is accomplished with ANSIS calculations of mechanical properties of CF space forms manufactured of prepregs with different Young modulus (Report)
– Modules: See Demonstrator plans
– Station: Base technical solutions is defined
Sag and mass of the frame as a function of carbon fiber type
5
15
25
35
M55J M50J M46J M40J
Type of carbon fiber
Sa
g, m
icro
ns
7,5
7,65
7,8
7,95
ma
ss
, g
Uz Uy mass
Demonstrator development (SE SERTIIE)
– Three types of demonstrators in production phase
– Two more types are discussed
Demonstrator 0-b Multi-layer connecting board
Cooling system concept and plans for prototyping
– ANSYS calculation with cooling of sensors with different gases (Report)
– Plans for the first cooling Demonstrator#1
Sensor development within ISTC Project
(SINP MSU and RIMST )
– Photomasks for first pilot batch of CBM STS sensors of size 40 • 60 mm2
– First 10 wafers for cabling mock-ups manufactured
– Sensors are expected in April 2010
Radiation hardness certification (KRI and SINP MSU)
– Irradiation of pad test structures (CIS and RIMST) for adjusting the procedures is accomplished
– Good agreement with known data on current degradation for high doses .
– Not so good for low doses, but might be it because of mistakes in dose measurements.
– Expected behavior for full depletion voltage
– We are almost ready for real work!!!
FDV of irradiated test structures VS neutron fluence
(after anniling 80min. at +600C)
0
20
40
60
80
1.0E+10 1.0E+11 1.0E+12 1.0E+13 1.0E+14
Fluence (n/cm2)
Vfd
(V
)
CBM test structure #41m,51m,61m(~5x5mm2)
MSU test structure #66,68(~9x9mm2)
Fit (initial Vfd=80V)
Fit (initial Vfd=25V)
Preparations for the in-beam tests
– Ru-106 source + Demonstrator-0B-bench tests (on going) – Slow Control System for in-beam tests (accomplished)
Infrastucture improvement
– Procurement of bonding automat for SE SRTIIE by JINR – Continuation of restoration of rooms to house ladder assembling lab
at JINR
Networking
– Organization of the 3-d Work Meeting in Karelia – Plans for the 4-th Work Meeting in Germany
Urgent task #1
– Simulations of realistic STS with central 4 rad/hard sensors with R-φ topology
– Size of the quadrant 60x60 with 1024 strips of each kind
Urgent task #2
– Let’s start to resolve “the station ##1-2 problem” and simulate disc-like stations #1 and #2 built of 24 wedges each
Final remark
– We are speeding into engineering phase aware that it will take 4-5 years to raise STS up
– Neighboring STS work packages i.e. “the pipe” and “the FEE board” defining the crucial numbers for us are well behind and should be accelerated by all means
– Thanks to all for the attention!
Acknowledgments to all Consortium members for their contributions!