From: Apache (apache@pii3.brahms.bnl.gov)
Date: Tue Feb 18 2003 - 15:52:06 EST
------------------------------------------------------------
Date: Tue Feb 18 15:52:06 2003, Shift: 08:00-16:00
Supervisor: Eun-Joo Kim, with:
Log book#14 pages 23 - 23
Shift Summary:
------------------------------------------------------------
1. Machine Status
--------------- ---------------------------------------------
Beam is alive from 10:30am.
In the beginning of store, background was too high.
MCR tried to reduce background.
Data taking started at the ratio(TOFW/ZDC) ~ 40.
2. Achievements
------------- -----------------------------------------------
Run 7999 : TPC Pedestal Run
Run 8000 : Camac Pedestal Run
Run 8001-8004 : DVM Runs (hard to find peaks)
-----------------------------------------------------------
Data Run : MRS 40deg, 1050A, FS 12deg, 1/4B
------------------------------------------------------------
Run 8005 : 143K trigger3, 15K trigger6 (high background)
Run 8006 : 47K trigger3, 4K trigger6
Run 8007 : 55K trigger3, 10K trigger6
(Trigger 3 scale-down set to 2 for Run 8007)
Run 8008 : 168K trigger3, 15K trigger6
------------------------------------------------------------
-> Changed D5 polarity from A to B
------------------------------------------------------------
Data Run : MRS 40deg, 1050B, FS 12deg, 1/4B
------------------------------------------------------------
Run 8009 : 150K trigger3, 15K trigger6
Run 8010 : 33K trigger3, 3K trigger6
-> DEAD time is 109% for Run 8010
Trigger4 scale down set to 1000 (from 500), and
Trigger3 scale down set to 2(from 1) for Run 8011
Runn 8011 : started at 15:41pm
3. Detector Problems
------------------
T3 tripped once at the beginning of store.
No other new problems observed.
Plan :
MRS : need 350K trigger3 at 40-degree, 1050B
FS : need 160K trigger6 at 12-degree 1/4B
------------------------------------------------------------
This archive was generated by hypermail 2.1.5 : Tue Feb 18 2003 - 15:52:41 EST