UA 9 telescope first ideas Rome 1232010 Mark

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UA 9 telescope first ideas Rome – 12/3/2010 Mark Raymond – m. raymond@imperial. ac.

UA 9 telescope first ideas Rome – 12/3/2010 Mark Raymond – m. [email protected] ac. uk 1

CMS LHC Si strip readout system APV CMS FED (9 U VME) APVMUX analog

CMS LHC Si strip readout system APV CMS FED (9 U VME) APVMUX analog opto-hybrid lasers ~100 m inner barrel sensor 12 96 laser driver x 15, 000 analog optical receivers analogue readout APV 25 0. 25 mm CMOS FE chip APV outputs analog samples @ 20 Ms/s APVMUX multiplexes 2 APVs onto 1 line @ 40 MHz Laser Driver modulates laser current to drive optical link @ 40 Ms/s / fibre O/E conversion on FED and digitization @ ~ 9 bits (effective) 2

128 x 192 bias gen. CAL pipe logic APSP + 128: 1 MUX pipeline

128 x 192 bias gen. CAL pipe logic APSP + 128: 1 MUX pipeline control logic FIFO 7. 1 mm 128 x preamp/shaper APV 25 128 channel chip for AC coupled sensors slow 50 nsec. CR-RC front end amplifier 192 cell deep pipeline (allows up to 4 msec latency + locations to buffer data awaiting readout) peak/deconvolution pipeline readout modes peak mode -> 1 sample -> normal CR-RC pulse shape deconvolution -> 3 consecutive samples combined to give single bunch crossing resolution 8. 1 mm Peak noise 270 + 38 e/p. F (peak) 430 + 61 e/p. F (deconvolution) Decon. 3 note: only discrete 25 nsec samples of above shapes are available in asynch. test beam choose timing to get close to top of peak mode pulse shape

APV readout trigger readout analog opto-link FED VME ~ 10 MB/s Slink to CMS

APV readout trigger readout analog opto-link FED VME ~ 10 MB/s Slink to CMS DAQ APV O/P Frame digital header APV provides a timeslice of information from all 128 input channels following external trigger (trigger must be timed-in correctly) 128 analogue samples no zero-suppression (sparsification) on detector pedestal, CM subtraction and zero suppression on FED raw data also available for setup, performance monitoring and fault diagnosis 20 Ms/s readout -> 7 ms can read out raw data at low rate – VME - < 1 k. Hz can read out sparsified data faster – VME ~ 10 k. Hz (to be verified – some uncertainty here) Slink faster – 100 k. Hz – but needs incorporation (and customized use) of other CMS components (probably not possible this year) 4

off-detector FED functionality opto-electric conversion 10 bit 40 MHz digitization pedestal and CM subtraction

off-detector FED functionality opto-electric conversion 10 bit 40 MHz digitization pedestal and CM subtraction hit finding (sparsification) formatting and transmission of data up to higher DAQ level check of APV synchronization all tracker synchronous, so all pipeline addresses of all APVs should be the same FED checks received APV pipe address matches with expected value (APV logic emulated at trigger level) 9 U VME 5

UA 9 telescope readout system APVMUX CMS FED (9 U VME) analog opto-hybrid lasers

UA 9 telescope readout system APVMUX CMS FED (9 U VME) analog opto-hybrid lasers ~100 m inner barrel sensor 12 96 laser driver PA make use of most components but different sensors – no PA readout fibre ribbons plug straight into FED 6

telescope sensor module ceramic piece (same thickness as hybrid) ceramic hybrid D 0 sensor

telescope sensor module ceramic piece (same thickness as hybrid) ceramic hybrid D 0 sensor 60 um pitch (+ intermediate strip) ~ 8 um resolution AOH HV, LV I 2 C, RST Ck/T 1 Al support plate with cutout beneath sensor peltier heatsink fan 7

XY plane HV, LV I 2 C, RST Ck/T 1 AOH sensor crossover area

XY plane HV, LV I 2 C, RST Ck/T 1 AOH sensor crossover area ~ 4 x 4 cm 2 power slow control HV, LV I 2 C, RST Ck/T 1 AOH interface circuitry optical fibre adaptors power supply conditioning peltier cooling control …. . fast control (40 MHz ck, trigger) fibre ribbon readout 8

XY plane box (light tight) 250 mm ~50 mm baseplate (dimensions not critical) adjustable

XY plane box (light tight) 250 mm ~50 mm baseplate (dimensions not critical) adjustable feet for levelling 9

XY plane ~m XY plane few 10’s m XY plane ~m XY plane LV/HV

XY plane ~m XY plane few 10’s m XY plane ~m XY plane LV/HV power supplies not included here 9 U/6 U VME FED TTCvi TTCex Seq. Si VI 2 C crate controller note: will need trigger to initiate APV readout (who will provide? ) I 2 C: 1 bus per plane actively split inside plane module also opto-isolated Ck/T 1: 1 shielded pair per plane CK/T 1 combination at VME end (separate module) 1 fibre ribbon (50% utilised) per plane 10

software first thoughts - not my area of expertise will need: setup lots of

software first thoughts - not my area of expertise will need: setup lots of programmable parameters in CMS readout system bias levels, modes of operation, timing offsets (synchronize to beam trigger), … run control well behaved start/stop look after data storage, format? prompt data analysis “online” (provide feedback to setup) beam profile, signal amplitude histos, …. offline what is required? 11

I 2 C link 5 V ~ 10’s m VI 2 C buffer 5

I 2 C link 5 V ~ 10’s m VI 2 C buffer 5 V optoisolate 5 V 2. 5 V level shift I 2 C de-mux VME (1 channel) separate VME buffer module (4 chan – can also incorporate Ck/T 1 opto-buffering) 1 st APV/opto hybrid 2 nd APV/opto hybrid ancilliary I 2 C circuits within front end XY plane enclosure level shift resets Ck/T 1 link Seq. Si Ck T 1 Ck/T 1 combine ~ 10’s m opto-receiver 1 st APV/opto hybrid 2 nd APV/opto hybrid opto-buffer fibre-optic 12

Optical rail system up to 2 m 50 mm 80 mm X 48 system

Optical rail system up to 2 m 50 mm 80 mm X 48 system from www. newport. com assume this will sit on stable (provided by someone else) feet allow some adjustment for levelling will still need some other mechanism for overall height 13