Main INDEX
Monthly INDEX
PREV
NEXT
User name C. C. Chang
Log entry time 15:59:15 on October14,2000
Entry number 50408
keyword=Day shift summary
****** Run Summary ********
Run # Start Stop # of Events Comments
1843 07:55 289K Ended earlier due to RF problems
1844 08:37 215K Ended earlier because raster was
found too wide (6mm) in x and
too small in y (3 mm).
1845-46 Fidding around with raster
parameters
1847 09:35 7.8K Ended earlier due to ROC14
problem
1848 09:39 10.6K Ended earlier due to Moller quad
problem
1849 09:57 10:10 Ended earlier because raster size
was found to be too narrow and
too tall (see comments below).
1850 10:12 11:06 673K First un-interrupted (good) run.
1851 11:07 12:34 1.02M Ended earlier due to RF problem
1852 13:30 15:08 1.2M Full good run.
1853 15:09 301K Ended due to ROC14 problem
1854 15:44 In progress.
******************************************************************
***** Additional Comments *******
08:27 MCC called to inform us of the RF problems. Beam will be off for aboujt
5 minutes. End Run 1843 earlier.
08:40 Beam back
08:40 Noticed that raster size was 6mm in x by ~2 mm in y (as seen with spot++)
with MCC setting of 3 * 2.5. Called MCC to change their setting to
2*4
09:00 ROC14 problems and ROC2 problems
09:40 Raster size is now 4mm in x by 4mm in y with MCC setting of 2 * 4
09:45 MCC called to inform us that Moller quad was off. Will restart remotely
and will get back to us when beam is back.
09:52 MCC called to try to give us some beam for checking to see if everhthing
is O.K.
10:00 MCC called to inform us that beam is restored to 90uA and is ready for
data taking.
10:10 During run 1849, we noticed that raster size was about 2mm in x by
6 mm in y with MCC setting of 2 * 4. We now suspect that the unusual
MCC setting for raster size in order to get an actual size of 4 by 4 could
be due to (or couple with) problems in Moller quad. Question is:
When did this problem happen? Was the raster size bad during last
graveyard shift? We called MCC to restore raster setting to 3 * 2.5
and the raster size retored back to 4 by 4. (See HALOG Entry 50396)
12:30 RF problem. Beam off.
12:52 MCC called. Lost one module. Beam will be off for at least 30 minutes.
13:30 Beam is back.
15:40 ROC 14 problem.