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

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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

11PXL BNL Safety Review– September 26, 2011L. Greiner

STAR HFTPXL Grounding Plan

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.