Attached is the temperature plot for bakeout period including tags for NEG activation etc.
28 October -> 27 November
--->See shared Excel document for CARME pressure values<---
https://uoe-my.sharepoint.com/:x:/g/personal/cbruno2_ed_ac_uk/EbaoBvhq8zFFtmuakXKjQWQBTqjjzilT6lk9BmchoxlMNQ?e=XU8DzE
30 October
07:30 Baking code has been shut down, we have no log of the temperatures. Restarted (T=0)
19:40 Pressure back in the E-12 mbar range.
31 October
08:47 Back in the low E-11 mbar range. See temperature plot attached.
15:57 Back in the E-12 mbar range.
1 November
12:30 Pressures updated. Temperature plot updated.
2 November
08:52 Pressure reached E-10 mbar overnight, now back in the E-12 range.
Temperature increasing. See attached.
3 November
08:37 Pressure stable in the E-12 mbar range.
15:36 Pressure mostly stable in the E-12 mbar range
17:30 KM reports re-arranging the mains power connection to borrow an extension reel. No obvious effects on pressure.
18:24 Pressure stable in the E-12 mbar range. Updated temperature plot.
4 November
08:39 Pressure stable in the E-12 mbar range.
Temperature plot updated.
19:31 Pressure mostly stable around 5E-12 mbar
5 November
10:26 Pressure stable in the E-12 mbar range.
6 November
12:26 Pressure stable in the E-12 mbar range.
7 November
11:50 Pressure stable in the E-12 mbar range.
Temperature plot updated.
8 November
20:39 Pressure increasing again. Now in 1E-11 mbar range
9 November
08:50 Pressure returned to E-12 mbar range.
Temperature plot updated
16:51 Pressure fluctuating around 7E-12 mbar range.
10 November
09:04 Pressure oscillating in the 7E-12 mbar range
11 November
08:27 Pressure mostly stable in the 5E-12 mbar range
12 November
08:21 Pressure mostly stable in the 5E-12 mbar range
13 November
08:29 Pressure increased suddenly to 7E-9 mbar yesterday at 14:00, from 6.5E-12 mbar. Was the valve closed? (Confirmed
by KM)
Pressure appears to be slowly recovering. Currently in the low E-10 mbar range.
Temperature plot updated.
15:40 Pressure does not appear to drop. Currently stable around 2E-10 mbar
18:10 KM reports Ion pumps have gone off (tripped by high pressure?)
IE514 gauge still reading 1E-10, but SAES D2000-10 ion pressure gauge reading 1E-12.
Someone will check tomorrow in person.
14 November
08:13 Pressure stable in the 2E-10 mbar range. Does not appear to decrease.
15 November
08:24 Pressure stable in the 2E-10 mbar range
16 November
08:23 Pressure increased to 1E-9 mbar (potentially due to heating being turned on at week start).
17 November
08:18 Pressure back in the E-12 mbar range since yesterday afternoon.
Change was sudden and CM52 control module appears to have been moved in-between.
Unclear what was done locally.
18 November
08:40 Pressure mostly stable in the 5E-12 mbar range.
19 November
07:55 Pressure remains stable in the E-12 mbar range.
Temperature plot updated
20 November
08:00 Pressure remains stable in the E-12 mbar range.
21 November
14:16 Pressure remains stable in the 5E-12 mbar range.
22 November
08:08 Pressure remains stable
23 November
08:24 Pressure remains stable
24 November
08:05 Pressure remains stable
See ELOG entry by JM
25 November
See ELOG entry by TD.
Valve partly closed.
26 November
08:58 Pressure in the E-10 mbar range, very slowly decreasing
27 November
21:07 Pressure stable in the 2E-10 mbar range. Does not appear to be decreasing
28 November
17:49 Pressure stable in the 2E-10 mbar range. |