October 17, 2007 online meeting minutes

present: Sergey Boyarinov, Eugene Pasyuk, Benjamin Raydo, Sergey Pozdnyakov, Stepan Stepanyan, Nerses Gevorgyan, David Jenkins, Chris Cuevas

DVCS Trigger

• we want for calibration: pi0 (2 clusters, 3x50=88%), efficiency above 90%; for production: one cluster with hodoscope on separate trigger bit (make sure latch is working, although electron will go to one of them, CLAS or DVCS), we are expecting powerful hits (3+ hits)

• we have to set threshold low because of TDCs

• hodoscope: 3x3 tower size, match will be enforced by overlaping; overlaping area can be another parameter

G9-FROST preparations

We discussed what should be done before G9A run start. Following issues came up:

• Franz implemented new monitoring features into fast online reconstruction; Sergey will talk to Franz to see what should be done to make sure it works

• we'll conduct counting house cleanup (remove rack, clean table, exsess old equipment)

• fan was fixed in one of LAC HV mainframes by Danny

• another sy527 HV mainframe was sent to repair by George Jacobs

• Lei tried to fix EC sec4 mainframe problem, it still alarms ...

• we asked Volker to deal with Universal Voltronics, the company which does Lecroy mainframe repair; we are not happy with both repair quality and schedule; it maybe necessary to involve procurement division

• mf labeled (Nerses), need list for shift takers, which mf correcponds to which ioc etc

• Chris: check l2, and check DC stop signal on SF south pulsers

• request to CC submitted on 'g9a' SILO partition

• epics_monitor switched from CDEV to CA, former gamma_monitor incurporated inside, everything is driven by config files in $CLON_PARMS/epics/ area, looks good but have to make sure all output are Ok; Eugene looking into set

• $CLON_LOG area moved to 300GB /data disk to avoid $CLON_PARMS overflow

• work in progress to implement IOC resets/heartbeats; will include tagger_mac as well