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User name Serge
Log entry time 18:14:46 on February 11, 2004
Entry number 76145
keyword=Run Coordinator Summary : 02/10 (Tuesday-Wednesday)
Run Plan Friday 02-06-2004Run Plan - Wednesday 01-28-2004
RC summary Tuesday/Wednesday 02-11-2004
- Data taking on empty target
- Change to LH2 on Wednesday
morning
- RIP scan, Harp scan on Tuesday after beam checks
- About 6.9 hours of empty target parity quality
data on tape
(runs
19778-19804)
- Paddle current
- 190 na for 20 uA of
beam on gas target
- 3200 nA expected for 40 uA for LH2 target
Achievments during this period:
1) Beam data taking on empty target
2) Moeller measurement done on Wednesday morning (see Moeller)
3) Target filled with LH2 (see LH2)
On
a more general basis
1) We will likely change the IHWP
state every two days
Make a RIP scan just after, and
eventually Moeller measurement
2) Moeller measurements every 2 days.
We
need
people to attend the training provided by Dave and Tanja !!!
3) Energy measurements typically once ... for ever.
After discussion
with
Mark Jones to be scheduled after 5 PM on Wednesday
or Thursday.
4) BPM/BCM calibration typically every week. Next week.
5) Use no beam time for DNL calibration (NA and French). Also search
for
helicity correlated ground loop. This happen
usually often enough ...
Concerns
A) Beam
position and halo
- Difficulties observed
to steer the beam and have the nominal position
- Not able to use 6 mm hole target
- Paul identified change in condition during Sunday Owl
shift
- Information passed to the PD after MCC weekly meeting
B) Halo rates
- Rates are now too large to use 6 mm hole target
- New attempt possible when 40 uA beam is sent back to us
C) FPD 2-14-FL
- Change in timing (see ToFshift)
and also a mail from Angela
- Amplitude and shape to be checked with scope and Fastbus
data
List
of shift summaries
Tuesday Swing T-Swing
and cdaq-TS
Wednesday Owl W-Owl
and cdaq-WO
Wednesday Day W-Day
and cdaq-WD
Serge Kox
Pager : 584-5681
Cellular : 876-1791
e-mail : kox@in2p3.fr
A copy of this log entry has been emailed to: g0-private@jlab.org