l. greiner 1pxl bnl safety review– september 26, 2011 star hft lbnl leo greiner, eric anderssen,...
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L. Greiner 1PXL BNL Safety Review– September 26, 2011
STAR HFTSTAR HFT
LBNLLeo Greiner, Eric Anderssen,
Thorsten Stezelberger, Joe Silber, Xiangming Sun, Michal Szelezniak, Chinh Vu,
Howard Wieman
UTAJerry Hoffman, Jo Schambach
IPHC StrasburgMarc Winter CMOS group
The STAR-PXL electronics system
2PXL BNL Safety Review– September 26, 2011L. Greiner
STAR HFTTalk Outline
• Hardware architecture of RDO system• Electronic structure of PXL system• Sensors and ladder cable• Mass termination board (MTB)• RDO board• Grounding, power and signal paths• Cooling System
3PXL BNL Safety Review– September 26, 2011L. Greiner
STAR HFTPXL Detector Mechanical Design
Mechanical support with kinematic mounts (insertion side)
Insertion from one side2 layers5 sectors / half (10 sectors total)4 ladders/sector
MAPSRDObuffers/drivers
4-layer kapton cable with aluminium tracesAluminum conductor Ladder Flex Cable
Ladder with 10 MAPS sensors (~ 2×2 cm each)
carbon fiber sector tubes (~ 200µm thick)
20 cm
4PXL BNL Safety Review– September 26, 2011L. Greiner
STAR HFT
2 m (42 AWG TP)6 m (24 AWG TP)
100 m (fiber optic)
Highly parallel system
4 ladders per sector 1 Mass Termination Board (MTB) per sector 1 sector per RDO board 10 RDO boards in the PXL system
RDO motherboard w/ Xilinx FPGA
RDO PC with DDL link to RDO board
Mass Termination Board + latch-up protected power daughter-card
PXL Detector Basic Unit (RDO)
Clk, config, data, powerClk, config, data
PXL built events
5PXL BNL Safety Review– September 26, 2011L. Greiner
STAR HFTPXL RDO Architecture (1 sector)
Ladder x 4
FPGA
LU p
rot.
pow
er
MTB x 1 PowerSupplies
ControlPCs
Trigger
DAQRDO PCsSIU
ADC
USB
i/o
RDO board x 1
Sensor testingProbe testingSRAM
Black – cfg, ctl, clk. pathBlue – data pathRed – power / gnd pathGreen – testing path
fiber
Unified Development Platform
6PXL BNL Safety Review– September 26, 2011L. Greiner
STAR HFTSensors and Ladder Cable
MAPSRDObuffers/drivers
4-layer kapton cable with aluminium tracesAluminum conductor Ladder Flex Cable
Sensor dissipation is ~540mW/sensorPower = 3.0V @ 180mA / sensor
MAPS Sensor
Ladder power is latch-up (over current) protected by a regulator circuit on the MTB. This circuit has been extensively tested in our LU testing program.
http://rnc.lbl.gov/hft/hardware/docs/latchup/LU_POWER_PCB.pdf
7PXL BNL Safety Review– September 26, 2011L. Greiner
STAR HFTMass Termination Board
Buffers signals and controlGenerates LU protected power for laddersPolyfuses on input side of powerBoard power is LU protected
Prototype board
8PXL BNL Safety Review– September 26, 2011L. Greiner
STAR HFTProduction Prototype RDO board
SIU
DaughterCard
USB
JTAG
VME P1
Ladder DataConnectors
Xilinx Virtex-6 FPGA~4A / RDO board
9PXL BNL Safety Review– September 26, 2011L. Greiner
STAR HFTProduction System Design
SIU
JTA
GU
SB
Dau
ghte
r C
ard
SIU
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SB
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ghte
r C
ard
SIU
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SB
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ard
SIU
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ard
SIU
JTA
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SB
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ghte
r C
ard
SIU
JTA
GU
SB
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ghte
r C
ard
SIU
JTA
GU
SB
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ghte
r C
ard
SIU
JTA
GU
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ghte
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ard
SIU
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ghte
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ard
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ardS
TAR
TC
D
We will use the 9U VME physical standard for RDO motherboards. (Not the electrical standard)1 standard VME crate with P1 backplane for STAR TCD distribution. Data from sectors arrives via cables plugging into the back of the RDO boards in the P2/P3 locations.
System consists of: • 10 double wide 9U VME
RDO boards• 1 single wide 6U VME
TCD board
356 M pixel readout in a single 9U VME crate
Standard 21 slot 9U VME crate
10PXL BNL Safety Review– September 26, 2011L. Greiner
STAR HFTCablingSignal & control
Ladders to MTBAWG 42 (WireTronic part # 2-42QPN-05)
MTB to PP to RDO BoardScsi Cable - VHDCI-68 male to HD68 male - U320 LVD/SE/HVD commercial cable UL type CMG
PowerPS to PP 10/4 HTC Cu Power cable
PP to MTB12 AWG hookup wire
MTB to ladders40 AWG transformer wire – multiple strands
12PXL BNL Safety Review– September 26, 2011L. Greiner
STAR HFTCooling system for PXL
We have not completed a detailed design for this system. The parts are based on a successful cooling test done at LBNL.
DustCollector
Conditioner PXL
The airflow monitors will be interlocked with the sensor power.
13PXL BNL Safety Review– September 26, 2011L. Greiner
STAR HFTPXL RDO Summary
• MTB and RDO boards are protected with polyfuses.• Ladders are over-current protected with LU power
modules.• Power supplies are soft grounded are the STAR racks.• Carbon fiber support structures are conductive and
grounded.• RDO boards are powered by a STAR standard VME crate.