1.
New pipeline TDCs
¥Main goal: decrease CLAS dead
time
¥Method: use dead-timeless
boards
¥All FASTBUS TDCs were replaced
by pipeline TDCs with appropriate resolution: 26 CAEN v1190 boards, 8 CAEN v1290
boards and 14 F1TDC boards were installed
¥CLAS time-of-flight, forward
calorimeter, large angle calorimeter, Cherenkov counter, start counter and tagger systems were equipped with 3000 channels of pipeline TDCs
¥New TDC trigger and TDC
reference systems were installed
¥TDC calibration system was
updated
¥Readout and calibration
software were developed
S.Boyarinov,
S.Pozdnyakov, V.Sapunenko, D.Abbott, J.Langheinrich