List of tasks/problems in the calorimeter understanding

1
Task/Problem Inventory
Robert Zitoun Stony Brook and LAPP Cal
Meeting June 26, 2003 http//www-d0.fnal.gov/zito
un/03_06_26.ppt

• List of tasks/problems in the calorimeter
  understanding
• Ranked as
• L nothing done
• LK looked at
• K something done
• KJ on the way
• J almost done

2
Content

• Signal shape
• Electronics commissioning
• Routine tests
• Online tools
• Offline code
• Cal operation
• No address of noise bursts

3
Signal Shape
Task Status
Charge collection (gap, shorter shaping) L Simulation
Hadronic response at shorter shaping time L Simulation
Calibration pulse shape/timing (exp) KJ Final report
Physics pulse shape/timing (exp) K Final report only?
Signal simulation J Ready. preAmp dispersion?
Preamplifier dispersion L ???
Cable lengths, capacitances, ... J Dead channels?
4
Electronics Commissioning

• Tests which should be (have been!) done with new
  hardware
• Global tests (55,000) or restricted tests (small
  number of channels)

Task Status
SCA LK Bad cells. Large dispersion
BLS daughter/mother LK Noisy cells, mapping, bad channels, gain path, slope...
Trigger LK mapping, broken channels, gains, pedestals, ...
Pulser LK mapping, broken lines, offsets, ...
ADC K ??
TC system/fanout K ??
Channel homogeneity L same noise/slopes
History K repair log
5
Routine Tests
Task Status
Pedestal J Done?!
Gain/Pattern LK Strategy?
Trigger L Pedestal/gain to DB!
Low/High voltage power supplies L Digging the archiver
LAr temperature/purity KJ Report!
Channel stability (time, temp, ...) L
6
Online Tools
Task Status
L3 KJ NADA killingreporting, NADA
cal_elec L Partly rewritten. Still to be upgraded
cal_examine L Too slow, bad choice of histos, no L1, trigger mixed, alarm...
dq_calo K to commission, enhancements
cal_viewer K to commission, keep track of hardware fixes
hot_cell_collector L does not exist
hot_cell_killer J done? Automatized input
GM K plots to improve!
7
Offline Code
Task Status
data unpacking LK Split unpack to array, correction/suppression/killing, array to CalDataChunk
TC info K soon...
L1/L2 unpacking L (my ignorance)
DB access L noise file, gains/nlc, bad channels
DQ K is it OK with present criteria for Good/Reasonable/Bad/Unknown?
8
Cal Operation
Task Status
Supervision JJ soon turn to L
On-call experts K soon turn to L
Slow controls L no more cal expert
Trigger files K
Documentation KJ Shifter, expert
5K setup L