¥All high-resolution TDCs in CLAS are
pipeline multihit boards
¥CLAS front-end busy is fixed 12us
(defined by Lecroy 1881 ADCs) which makes it possible to increase event rate up to
10kHz at
dead time below 15%
¥In general we were satisfied with
service provided by commercial companies: WIENER service (VME64X crates) was very good; CEAN
service was good but several iterations of sample
boards and firmwire upgrades were needed to get required
parameters; following support from both companies was very
good
¥Better coordination is required in
future to keep our schedule in sync with other Hall B and JLAB groups
¥