Jianchun (JC) Wang, 08/21/99

RICH Electronics and DAQ

Chip Carrier

Short Cable

Transition Board

Long Cable

Data Board

Crate

J.C.WangSyracuse University

CLEO Meeting, 08/21/99

Jianchun (JC) Wang, 08/21/99

OutlineRICH Hardware:• VA-RICH chip carrier• Data board• Cables, transition board, and cabling• Crate and other electronic cards (CPU card, TIM, Pulser board,

SBUS controller & Power monitor board, gcal board)

Software:• DAQ• Monitor code• Calibration code

Jianchun (JC) Wang, 08/21/99

R.Mountain, CLEO M tg, 20 Aug 1999

C harged Pa rticle Track

C athode Pad Photon Dete ctor

LiF R adiator M edium

Ch eren k o v P h o to n s

To tal ly In tern ally - Reflected P h o to n s

C ere nkov R ing

Expa ns ion Zone

Jianchun (JC) Wang, 08/21/99

Jianchun (JC) Wang, 08/21/99

Jianchun (JC) Wang, 08/21/99

Jianchun (JC) Wang, 08/21/99

RICH Data Board

Main Features:• Differential Signal ADC

• Bias voltage and current control

• Parameter monitor (T, I, V)

• Coherent noise subtraction, and data sparsification

What we concern:• Precision of charge measurement

• Short term fluctuation (noise performance)

• Long term stability

Jianchun (JC) Wang, 08/21/99

Performance of a Chain

Jianchun (JC) Wang, 08/21/99

Status of RICH Data Board

• 120 + boards are ready

• Noise performace meet goal (Incoherent noise < 3 ADC counts)

• High temperature oscillation of power supply solved

• Analog board and digital board are mounted together

Jianchun (JC) Wang, 08/21/99

Jianchun (JC) Wang, 08/21/99

Jianchun (JC) Wang, 08/21/99

Jianchun (JC) Wang, 08/21/99

Jianchun (JC) Wang, 08/21/99

RICH DAQ

• Version 9902 used for cylinder test before the insertion– Crate information not in event tag– Beamtest data format and event tag

• Version 9904 will be used for coming test– Gcal used, so wirepulse calibration is possible– Final event tag & close to final data format event tag– DB problem existing ( with more than two crates)

• Final version 99xx– DB bug fixed– Finish date is uncertain

Jianchun (JC) Wang, 08/21/99

RICH Monitor• Data board parameters (Bayar)

– Power voltage, bias current and voltage, temperature

– Code ready to get information, need graphic display and alarm

• Raw data quality (Jian)– Number of hits, number of channel used in CM noise calculation, coherent noise,

pulser height, etc

– Code ready to get partial informations, more need to be done

• Pass1 data quality (JC, or Tomasz)– Number of hits, pulse height, number of pads per track, number of cluster per track,

Cherenkov angle distribution, etc

– Not start yet

• HV (Peter Thies)

• Gas (Alex & Stephan)– TEA temperature, flow rate, N2 transparency, etc

– Running

Jianchun (JC) Wang, 08/21/99

RICH Calibration

• Existing modes:– Normal mode (pedestal, noise)– Flash, Flash with hold– Single channel mode– Wirepulse mode

• Parameters store in data base:– Pedestal, noise, dead channel, gain parameters– Unify the online and offline data base ?

Jianchun (JC) Wang, 08/21/99

Summary

• Hardware:– Chip carrier, CPU, and most electronic cards

are ready, some need further work– Cabling nearly finish, test of part and whole

cylinder will come soon

• Software:– Need a lot of work

Jianchun (JC) Wang, 08/21/99

Jianchun (JC) Wang, 08/21/99

Jianchun (JC) Wang, 08/21/99

Jianchun (JC) Wang, 08/21/99

Jianchun (JC) Wang, 08/21/99

VA-RICH Chip Carrier

Jianchun (JC) Wang, 08/21/99

Jianchun (JC) Wang, 08/21/99

RICH Readout Hardware

• VA-RICH chip carrier

• Data board

• Cables, transition board, and cabling

• Crate and other electronic cards:

CPU card, TIM, Pulser board, SBUS controller & Power monitor board, gcal board

Jianchun (JC) Wang, 08/21/99

RICH Software

• DAQ

• Monitor

• Calibration