Add entries to table any time conditions change that may have an effect
on drift chamber data. Note that in some cases an entry appears for when the change
occurred and separate entries for the first cosmic and/or colliding beam run after
the change.
Last modified: 2 August 2000 by D. Coupal
| Date |
Time |
Run Number |
Type |
Comment |
| 29-JUL-99 |
18:04 |
|
|
Turned down SL6, outer quadrant to 1500v (effectively off).List of wires turned down. |
| 29-JUL-99 |
18:10 |
7137 |
Cosmic? |
|
| 29-JUL-99 |
20:31 |
7146 |
Colliding |
|
| 06-AUG-99 |
14:00 |
7354 |
Colliding |
Water bubbler started |
| 07-AUG-99 |
03:57 |
7379 |
Colliding |
Beginning of sharp drop in gain due to water level in gas |
| 12-AUG-99 |
05:27 |
7725 |
Colliding |
Maximum gain drop (about 15 %) |
| 14-AUG-99 |
09:19 |
7764 |
Colliding |
first colliding beams after drying out chamber |
| 22-OCT-99 |
17:44 |
|
|
Set V1 to 1900v. Turned SL5 bottom & outer, SL6 bottom and
lowest 3 HV cards in SL6 outer down to V1=1200v.List of wires turned down. |
| 22-OCT-99 |
20:53 |
9929 |
Cosmic |
|
| 22-OCT-99 |
22:56 |
9931 |
Colliding |
|
| 03-NOV-99 |
|
|
|
Re-segment the HV: see HN posting, List of wires turned down. |
| 03-NOV-99 |
18:19 |
10224 |
Cosmic |
|
| 05-NOV-99 |
12:38 |
10256 |
Colliding |
|
| 27-JAN-00 |
17:48 |
11075-078 |
Cosmics |
Cosmic tests at lower voltage. See HN posting |
| 04-APR-00 |
17:00 |
12626 |
Colliding |
First of two runs with sparsing set to TDC mode HN posting |
| 04-APR-00 |
19:56 |
12628 |
Colliding |
Back to FADC sparsing mode. |
| 07-APR-00 |
06:30 |
12662 |
Colliding |
First run to be processed with 45 micron stereo offset. |
| 28-APR-00 |
17:03 |
13011 |
Colliding |
Single test run at 1960 volts. See HN posting |
| 10-JUL-00 |
09:17 |
14462 |
Colliding |
First run at 1960 volts and TDC mode. See HN posting |
