Make New Entry,
Make Followup Entry
User name M Friend
Log entry time 02:24:54 on October13,2009
Entry number 294658
keyword=Compton run summary
Run 20354: electron only run at 7.0mm, 3 plane coincidences, FADC triggered on electron detector, prescale for electrons 100%. Analysis plots are empty for some reason.
Run 20355: electron detector at -2.0mm, still same settings. Long run. Analysis plots are not empty! Long run.
Run 20356: coincidence run at 1.0mm, 3 plane coincidences, FADC triggered on Saclay photon signal (!), prescales set to 4%, 0%, 100%. Analysis shows that something is stuck.
Run 20357: coincidence run with prescales set to 4%, 0%, 50%. Otherwise the same as last run. Nope, still stuck.
Run 20358: coincidence run with prescales set to 4%, 0%, 10%. Nope, still no events.
Run 20359: coincidence run wtih prescales back to 4%, 0%, 100%. 2 plane coincidences. Still stuck.
FADC trigger back to PMT trigger.
Run 20360: 2 plane coincidence run, change time width from 5(x50ns) to 3(x50ns). Nope.
Run 20362: photon only run with FADC triggered on Saclay DAQ gammas.
Run 20364: electron only run at 1.0mm, 3 plane coincidences, 100% electron prescale, FADC trig on edet.
Back to production running.