NEXT
Make New Entry,
Make Followup Entry
User name V. Sulkosky
Log entry time 15:48:47 on February 16, 2011
Entry number 347217
keyword=Pedestals Zero for ROCs 1, 2 and 4
I noticed early and was told by Larry that pedestal suppression might be
off for the HRS's. I double checked the ped files for ROC's 1-4.
The file ped3.dat has pedestals, but I think that is because Zhihong has
updated them. But ROCs 1, 2 and 4 have mostly zero pedestals for the ADC
channels, except for channels 16-25 of ROC 2. I am not sure what if any
thing is plugged into those channels.
The deadtime has been okay with the current we have been running, but the
lack of pedestal suppression on the right arm has to be causing higher
deadtime. Also I am not sure if pedestal suppression has been implemented
on BigBite and HAND. If not, it would be a good idea to do so before we
start production.
A copy of this log entry has been emailed to: kelleher,yez,danez,rom,doug,eip,orchen,igorko,rshneor