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