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Message ID: 488     Entry time: Thu Mar 3 11:19:25 2022
Author: Cusp Trap 
Type:  
Category:  
Subject: backup 

10:03  start trap temp logger
--tried to set up pfeiffer tpg 300 to read out too, but is rs232 and didn't want to listen

C:\CuspControl\Cusp\1_Cues\Electrons\2022-03-03\load_0cut_p.q
10:06  looks like it did in ELOG\PLASMA\350  100604.jpg
--cp  532 mV, 615 mV, 572 mV
10:11  t  7.3 V 25 K  101150.349.png  101150.jpg, 7.6-26, 7.4-23

10:15  stop DS coldhead; pressure stable at 3.4e-10 mbar
--t  7.2-28, 7.4-27
--reduce initial heater current 300-->290 mA
--t  7.6-27, 7.5-26
--(so far trap T has only increased from 6.0 to 6.4 K)
10:21  cp  568 mV, 597 mV
10:23  (6.6 K) t  7.7-27, 7.4-27 (swirler) 102559.412.png  102559.jpg,  7.4-29, 7.7-27
10:31  (7.0 K) t  7.5-31, 7.8-34, 7.9-29
--cp  600 mV, 635 mV
--maybe because I let the emission current overshoot; change initial heater to 290 mA on this cue too
10:39  t  7.7-29
--p  104053.jpg  why is bigger huh? 104217.jpg eh, only somewhat bigger
10:46  (7.2 K) t, weak load: 8.6-26, 8.2-28
10:50  start DS coldhead
10:51  stop US coldhead
--T is skyrocketing, pressure not so much
10:52  t  (11 K at dump)  17-52 (yes 17 V 52 K)
10:53  t  (14 K at dump)  7.6-42
10:54  t  (17.5 K at dump)  8.3-41
10:56  t  (~21 K at dump) 9.2-40
10:57  t  (24 K at dump)  9.7-44
10:58  t  (25 K)  17-70
11:00  weak load: 18-50, 18-55
--why am I getting x2.5 more plasma?
11:04  (26 K)  very weak load: 18-74
11:05  t  18-68
--target emission 1.0-->0.5 uA
--t  10.0 V, 61 K also known as 10-61
11:08  (27 K)  10-66
--cp  805 mV, 825 mV = 38 Me- 
--p  111302.jpg  111414.jpg
11:15  (28 K)  9.8-74, 10-75
--target emission 500-->300 nA: 5.3-56  111834.344.png  111834.jpg,  5.3-51  111952.141.png  111952.jpg
11:21  (29 K)  4.8-46  112140.686.png  112141.jpg,  4.7-50
--cp  341 mV, 318 mV
--emission target 300-->500 nA: 695 mV
--450 nA:  594 mV
11:28  (30 K)  7.8-75, 7.4-59, 7.7-65
--talk to Andi for a few minutes
11:41  (31.5 K)  weak load: 4.1-53  114205.080.png  114205.jpg
--4.2-45
--increase emission target 450-->600 nA:  7.4-52, 7.8-55  114605.549.png  114605.jpg
--p  114809.jpg  114947.jpg
--cp  564 mV, 535 mV
11:53  (33 K)  7.6-56, 7.3-51, 6.2-51
11:57  stop DS coldhead
--now both coldheads are stopped
--emission target 600-->650 nA
11:58  (34 K)  12-79, 18-82
--emission 650-->400 nA
12:01  (35 K)  18-78
--300 nA:  18-78,  16-94
12:05  (36 K)  9.1-65, 8.2-68
12:08  (38 K)  6.8-62
--emission 300-->400 nA:  8.1-58, 8.0-71
12:13  (40 K)  7.0-74
12:14  (41 K)  400-->450 nA: 7.0-59
12:16  (42 K)  6.7-62
12:17  (43 K)  emission 450-->550 nA: 5.7-61
12:18  (44 K)  650 nA:  8.7-64
 

 

pressure increases about 0.2e-10 when e-source is hot
--jumps by 1.0e-10 when e-source is removed
--ditto MCP-remove
10:10  3.4e-10
10:18  3.4e-10
10:21  3.4e-10
10:23  3.5e-10
10:25  3.4e-10
10:28  3.4e-10
10:30  3.4e-10
10:33  3.5e-10
10:39  3.5e-10
10:48  3.6e-10
10:50  3.6e-10
10:52  3.9e-10
10:53  4.7e-10
10:54  1.0e-9
10:55  3.1e-9
10:55  4.1e-9
10:56  4.8e-9
10:56  6.2e-9
10:57  6.6e-9
10:58  7.0e-9
10:59  5.7e-9
11:01  3.8e-9
11:02  2.8e-9
11:03  2.1e-9
11:06  1.4e-9
11:09  1.2e-9
11:13  1.0e-9
11:16  8.8e-10
11:21  7.8e-10
11:28  6.8e-10
11:40  5.6e-10
11:53  5.3e-10
11:59  5.8e-10
11:59  6.7e-10
12:00  1.3e-9
12:01  1.8e-9
12:02  1.8e-9
12:03  1.6e-9
12:04  1.3e-9
12:05  1.0e-9
12:06  9.2e-10
12:08  9.1e-10
12:11  1.3e-9
12:12  1.4e-9
12:13  1.6e-9
12:14  1.9e-9
12:15  2.2e-9
12:17  3.1e-9

 

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