View source for October 10, 2007 online meeting minutes

present: Sergey Boyarinov, Elliott Wolin, Eugene Pasyuk, Benjamin Raydo, Nerses Gevorgyan, Nikolay Balasanyan, Tanest Chinwanawich, Serguei Pozdnyakov, Stepan Stepanyan

'''DVCS Trigger System'''

Following progress was made since meeting last week:

* datafile containing DVCS raw data was created by Rustam and Sergey and passed to Ben

* Ben made event display to present and control cluster reconstruction process using Altera simulation tools; it has two adjustable parameters: single channel threshold (the same for all channels, was set to 50) and minimum number of hits per cluster (was set to 3); cluster finding window has fixed size 3x3 towers (bigger or variable size winow requires more space in FPGA); future plan includes processing good file with different parameters, making 2DIM plots, getting efficiency, then processing all data and getting rejection

* we discussed how much regular user have to learn about v1495 programming; it maybe good idea to learn Altera graphic tool which allows to assemble simple logic from prepared components

* we've got quotation for 2 more v895 discriminators from CAEN, they will be ordered

* we talked very preliminary about hodoscope, which will be located in front of DVCS calorimeter and have about 60 channels; v895's  discriminators and v1495's logic units must be purchased for that device; it will be good to have hodoscope drawing in a couple of months, we may consider to add hodoscope outputs to the DVCS trigger system

* we'll try to borrow one more v1495 from Hall A for 2-board testing

''' Projects'''

* 2eSST test for v1190/v1290 started in the Hall, ec4 equiped with mvme6100

* new ET installed, everything looks good so far; ''et_2_et'' has new option ''direct'' for communication between machines which are not sharing any subnets

* old CAEN sy527 mainframes in LAC area are included into new EPICS (Sergey B., Nerses, Hovanes); some troubles communicating with v288 CAENET controller; will run for a while to get experience

TODO:

* HV in wolfram area need remote control (serial ?)

* include LAC into old EPICS GUIs

* ioc reboot/heartbeat buttons

* fix fan in mainframe 1 in LAC (Tom Carstens)

* send sy257 which just arrived fro repair back to repair (who is tracking them ?)

'''G9-FROST preparations'''

* CED for new TOFs

* online recsis (Eugene, Jerry)

* DC pulser run

* ADBs, level2 check (Chris)

* pedestal run (soft fixed) (netonpmc etc - automatically !!)

* TDC, TOF laser, EC calibration runs

* new SILO directory 'g9a'

* fix list of logbook receivers (run coordinator, PDL - what time periods ?): DAN PDL, Eugene run coord

* trigger: single sector TOFxST with and without Level2 (sector-based); norm trigger sync 1 only (grom g13_norm)
copy from g8b

* helicity correction: fix error around flip

* before and during the run we'll use [[G9-FROST]] page to store information related to the DAQ/Online systems

* new EPICS channels from target, list will come from Eugene; check existing list for availability, add new if necessary
fast and long injection

* run starts Oct 23 (commissioning for 6 days)