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Hall A DAQ meeting
January 12th 2015
Summary• summary GMp /DVCS• BCM / Unser • Raster• Summary Compton • EDTM • F1 TDC• Halo monitor • Gas Cerenkov
• SBS Fastbus• SBS GEM readout• FADC/ARS test stand• BigBite DAQ
To do list / Gmp DVCS
• https://docs.google.com/spreadsheets/d/1XJCvkLtSNXv9YiQ03gXwI_OkozhJdkWlD1IlxgIPtww/edit?usp=sharing
BCM / unser
• UNSER
• New BCM– Not count at 0 current (might be negative offset )– Saturate at 30 uA ( Optimize for DVCS or GMp)
Raster
• Overall works– Need check saturation ( double blob )– Spikes– Should be ok for DVCS and GMp ( issue for He3)
• https://logbooks.jlab.org/entry/3313730
Raster current plots
Rasterhttps://logbooks/entry/3314862
Compton
• Integrated DAQ being worked• Counting DAQ photon ?
• Edet : – Plan stand/ semi standalone DAQ– Need BPM, cavity power – Could fit in CMU crate or use separate crate– Need setup EPICS : motion and detector– Replace detector and survey
EDTM
• Working in LHRS• Need automatic start• Need adjust priority• Change to ROC DP server ?• External script driving EDTM
F1 TDC
• Need tested spares• Duplicate signal for important signal ?• Cabling clean-up
• Power / heating
Halo monitor (GMp)
• Proposal– 4 fingers ( scintillator or quartz )– Fast electronics group discrimiator ( 3 K$ 16
channels)– EPICS readout
• Most likely halo will be fine if it can go through Compton
Gas Cerenkov
• Mysterious inefficiency for bad runs– Photons ?
• Do we want to put 1 FADC for readout ?
SBS Fastbus
• 3 FB crates• V1495 ready• New TI
• Test flipping and sync with 3 new TI• Could test with 6 crates ( 3 TI master + 3 TI
slave )– Need setup 6 crates– Order optical fibers
SBS GEM
• 1 VXS crate UVA• Bryan working on MPD ( 1 month depending on
priority )• INFN software working
• Need– Start development optical link / SSP readout
• SRS : readout UDP packet, need decoding program
FADC/ARS test stand
• 2nd floor counting house• FADC , CTP, SSP, new TI• Intel CPU• Need CODA setup and cabling
Bigbite DAQ
• 2 FB crate• Computer srcdaq setup• Portserver• CPU booted• Need setup FB readout and TS crate
• Need setup GEM crate