Overview of T1 detector - Istituto Nazionale di Fisica Nucleareminutoli/TOTEM Project/CABLING... ·...
Transcript of Overview of T1 detector - Istituto Nazionale di Fisica Nucleareminutoli/TOTEM Project/CABLING... ·...
Overview of T1 detector
T1 i d b 2• T1 is composed by 2 arms• Each arm is composed by 5 planes• Each plane is composed by 6 CSC
trapezoidal chamberstrapezoidal chambers• Each chamber is composed by 1 anode
and 2 cathode planes• For mechanical reasons each arm isFor mechanical reasons, each arm is
divided into two halves : each halve is considered independent to the other also from electrical/logical point of view
• In total, each halve include 15 chambers
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T1 functional electronics system architecture
On Detectorregion
Local Detectorregion
Counting Roomregion
TOTFED
LVDSCMOS
LVDSCMOS
GOHs
GOHDDAVMUX
TDAVMUX
TOTFED
OPTORx
OPTORx
Trigger bits
Data bits
Trigger Info
ReadoutPath
etectors
AFECsS‐bitDataOutClk40F C d
CMOS
SPYMezz
VFATTrgMez
MUXVFAT
ROCTTCRxOPTORx
Data bits
Data to DAQ(S‐Link; VME; or USB)
CSC De
CFECsFastCmdI2C
PLL25QPLL
CLK40Tree
CCUM
VFATFEC
DOHs mFEC ControlPathT
ok
40÷100cm T1
TreeDCU
CMOSLVDS
DOHM
TTCRx
TTC
TOTEMSlow Control
enRingg
4 x 15 Det 4 x 15 AFEC + 4 x 39 CFEC 4 x 9 ROC 2T + 2D + 4mFEC = 4 x T1 ¼4 x 1 DOHM
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On and Local detector region electronic boards
DOHM‐CCUSLOW CONTROL RING
3 x CFEC = 2 x 192chs
AFEC 220chs
CSC Plane_n
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T1 electronic boards placement.
= CSCROCs 45
6th frame
= ROCROCs 23
ROCs 01 DOHMA
ROCs 01 = DOHM
= CFEC
A= AFEC
= IP5
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T1 H.V. architecture (1) DCSDCSSCADAOPCServer
R.M.= 52 pin 4 x A1550PHV modules p
Radiall Connector
¼ T1 ¼ T1
SHVR.M.
Distribution box on 6° frame
Distribution box on 6° frame
SHV
R.M.-
NearFar
Distribution box on 6° frame
Distribution box on 6° frame
R.M. SHV SHV R.M.
A1550P
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24 Chs 5 kV/1mA
+¼ T1 ¼ T1
T1 H.V. architecture (2)
• Located in Counting Room, each ¼ T1 has available one A1550P board with 24 HVcommon floating signal return channels.
L ll i th C ti R th Si l R t d th HV bl Shi ld• Locally in the Counting Room, the common Signal Return and the HV cable Shield canbe connected in different ways, together or to the SY1527 Mainframe ground (AGND).
• A 100m long multiwire HV cable, connect each A1550P module to the ¼ T1 platform,where a short 4.5m cable, branchs the HV sources to the 6th frame.where a short 4.5m cable, branchs the HV sources to the 6 frame.
• On the T1 6th frame a distribution box is located, here only 15 out of 24 HV chs areconnected to the chambers via SHV connectors.
• The shield of each SHV connector is connected to the external copper layers of thepp ychambers, that are isolated from the structure. The external layers of the chamberrepresent the Signal Return connection.
• The main HV cable has the shield connection available on two pins of the Radialll b d l d f h ll h ll hmultipin connector, but instead it is isolated from the connector metallic shell. This in
order to avoid unforeseen contacts between the shield and the metallic structure of theenvironment.
• The cable shield is available on a fast‐on connectorThe cable shield is available on a fast on connector .
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SY1527HV MainFrame A1550P Ground
T1 HV cards (#4)
Frame A1550P jumpers
1550P
1550P
1550P
HV cards
HV cards
C.R. Main
220Vac{AGND}
A A A
T2 H
RP H
Boardchassis ShG
SRC.R. Main power Gnd
{AGND}
+ 4 Common Ground Return
4 x HV shielded multiwire cable (100m)
No ShG
HV
SR
+
‐
24 HV sources2 Interlock wires2 Shield wires
3.6kV
No ShGon the shell
X
24 common groundfloating sources
ShG T1 HV system cabling,Control Room side.RC
Option
ShG = HV cable Shield.SR = HV Signal Return.
g5kV/1mA.
to the Cavern= AGND
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From C.R.
4 G d Rt
T1 Platform
No ShGon the shell
No ShGon the shell
4 Gnd Rtn24 HVs
2 Interlocks2 Shields
HV cable
mV cable, 4.5m
T1 6th frameInterlockS it h
HV
No ShGon the
1
15
8
9 HV cable1 5
Switches
SHVs
6 π24
able
shell
2416
ShG1.5m
Chs16
avail
T1 HV system cabling,Cavern side
CSC#1
CSC#15= Reference Ground (RG)
HV Chs 1 π 15
Cavern side.#1 #15 Reference Ground (RG)
= Signal Return (SR)
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T1 L.V. architecture (1)MARATON Primary Rectifier
‐N ‐F +N +F
MARATON Remote Controller
Control Room
N F +N +F‐n ‐f +n+f
¼ T1 ¼ T1
2 x 4 ; 36 wires shielded cables, to MARATON Power Box
MARATON Power Box
-Distribution Box 6° frame
Distribution Box 6° frame
MARATON Power Box
NearFarOn platform On platform
Distribution MARATON MARATON Distribution
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+Distribution Box 6° frame
Power BoxMARATON Power Box
Distribution Box 6° frame
¼ T1 ¼ T1
L t d it l tf h ¼ T1 h il bl Wi MARATON 12 LV fl ti
T1 L.V. architecture (2)
• Located on its platform, each ¼ T1 has available a Wiener MARATON 12 LV floatingchannels system.
• Only 7 out of 12 chs are used and cabled with independent shielded cables (2 x 16mm2
each) up to the T1 6th frame. These 7 cables together with LV sensing, DCS, HV andeach) up to the T1 6 frame. These 7 cables together with LV sensing, DCS, HV andoptic fiber cables, are routed inside a cable tray groove made on the CMS endcap disk.
• The 7 LV chs are connected on the T1 6th frame as follow:
– three main branches with 2 voltages (2V5: analog and digital) each, devoted tog ( g g ) ,supply LV power to the three set of ROCs (top + middle + bottom {same plane}).
– One branch with 2V5 digital voltage, devoted to supply LV power to the slowcontrol ring Digital Optic Hybrid Module (DOHM).
• The LV distribution internally to the ¼ T1, is done with independent shielded cables (2 x1.5mm2). The cables powering the same set of ROCs (top + middle + bottom) have thesame length, while the LV sense wires are connected only on the ROC located in TOPposition of the setposition of the set.
• All the LV cables have the shield connected to a fast‐on connector .
• Each ROC supply LV power (2V5: analog and digital) to the AFEC and CFEC cards wherethe VFAT hybrids are hosted. Depending the dimensions of the chambers managed,y p g g ,each ROC supply LV power up to 2 AFECs and 4 π 6 CFECs. These connections areperformed with 50 wires flat cable. LVDS signals from the F.E. use the same cable.
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¼ T1 L.V. architecture (3), ROCs cabling.
From MARATON Power Box on the platform
L.V. Distribution box on ¼ T1 6th frame
7 x (2 x 16mm2) shielded cables
2V5D 2V5A 2V5D 2V5ACh-U9 Ch-U8 Ch-U1 Ch-U0
Sense
Sense2V5D 2V5A
Ch-U5 Ch-U4
Sense
2V5DCh-U6
Sense
Shi
Cab
Shi
Cab
Shi
Cab
TOP MIDDLE BOTTOM TOP MIDDLE BOTTOMTOP MIDDLE BOTTOM
elde
les
elde
les
elde
les
ROCs 01 ROCs 45ROCs 23DOHM
d d dTo AFEC-CFEC To AFEC-CFEC To AFEC-CFEC
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I tot:U9 7A@2V5DU8 2A@2V5A
I tot:U1 10A@2V5DU0 5A@2V5A
I tot:U5 10A@2V5DU4 5A@2V5A
I tot:U6 0.5A@2V5D
¼ T1 L.V. architecture (3), ROC positions.
CSC
ROCs 456th frame
= CSC
= ROC
ROCs 23
ROCs 01
= DOHM
= IP5= IP5
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Slow Control Ring (SCR) cabling
CSC
ROCs 456th frame
= CSC
= ROC
ROCs 23
ROCs 01
= DOHM
= IP5
= SCR cable
= IP5
T1 SCR is based on CMS CCU25 custom device.Each ¼ T1 consists of nine nodes, each node has a CCUMezzanine locally powered by the ROC where it is hosted The DOHM (optic to electric interface board) is powered using a dedicated LV channel
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is hosted. The DOHM (optic to electric interface board) is powered using a dedicated LV channel.Each node has its unique address, the LVDS data transmission along the loop is made adopting twisted pairs shielded cable.