Here's a brief STATUS report:
High voltage: Vartan Gurjyan (I hope I remembered that right, Vartan) has made
great progress on a VME based control program for the CAEN HV supplies. I tested
it, and it has some great features. He's still implementing changes.
Low Voltage: a number of problems were found and fixed by two of our techs,
Christiana Martin and Michael Necaise.
Gas system: Wayne Major and George Jacobs have gotten the gas system ready for
the commissioning run but it HAS NOT YET been fully commissioned itself for the
December run. The overpressure safety systems are not yet fully functional and
robust. Final calibrations need to be done on the mix ratio, O2, H2O, press.
and temp. monitoring. Mike Vineyard has gotten EPICS monitoring in good shape.
ADB/TDC system: the system is largely operational. We are still plagued by
a few cable disconnects.
Region 2/3: the chambers are at nominal voltage. There is no evidence for
broken wires or other HV shorts. There is at least one LV disconnection in
R3S3. We will take a long cosmic run today to check out the chambers.
The long summer of repairs by Steve Christo, Dan Carman and others has been
successful.
Region 1: Dan Carman, Rob Fuerbach and John McNabb have been busy reconnecting
the Region HV, LV and signal cables for the last two days after they and
Gary Wilkins installed the chamber. They are fighting with a number of
HV baby cable disconnects and mis-labelings. We are in the heat of the battle
now; more news later.
On-line monitoring: Mark Ito has overall responsibility for CLAS monitoring
while Richard Thompson and Junho have taken responsibility for the drift
chamber portion. Dave Tedeschi is Mark's enforcer. Steve Dytman has
provided us MAPIT, a useful utility to overlay specific electronics
grouping on top of a wire-layer occupancy plot.
Tracking: Jerry Gilfoyle, Francois Roudot and Franz Klein have made progress
on time-based tracking. RecCal works in analyzing pulse calibration data
for the individual time delays for different channels, RecOn (formerly RecMon)
does tracking in real time from data taken from the DD ring, the final
MasterMap which correlates wire id. with electronics (hv, lv, adb, tdc, stb, etc)
id has been built. Liming Qin (and others?) has employed single-superlayer
tracking to get a better estimate of the layer efficiency of the chambers.
Regions 1 and 2 were at the 97% level while Region 3 was about 93% efficient
during the June run. He is working on making this utility available to the
rest of us.
Run Plan: Richard Thompson has outlined a run plan (it's a lot like the
June one) with inputs from many.
Geometry: Alex Skabelin is working on installing actual survey numbers into
the Recsis geometry. Larry Weinstein and Rustum (sp?) are supplying help on
the Region 2 numbers.
Laser Calibration system: Ross Hicks (with help from Rory and George Jacobs) is
installing the system in the gas shed - HOPEFULLY in time for the September run.
Data Base Management: Joe Manak has played the leading role in organizing the
run-indexed calibration data base, MapManager. He has also helped tremendously
in organizing the software.
Offline Analysis: Dennis Weygand has now taken overall responsibility for this
effort. He is bringing order to chaos.
Have I left YOU or YOUR COLLEAGUE out? If so, I apologize and urge you to
report your work to this news server.
regards, Mac