 Tue Jun 20 21:22:21 2023, KHK, KWL, Problems, , Other, contamination in the chamber 
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We see the the background lines coming probably from some activation inside the chamber as the target wheel is removed and we run only
with the alpha source at the moment.
The spectrum is the same means that something inside the chamber is activated, not the target 197Au used in the coulex run or neither it's |
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Tue Jun 20 18:39:55 2023, KHK, GC, Runs, , General, alpha calibration
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241Am source, single peak - we played with the digitizers..
alpha_20062023_241Am |
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Mon Jun 19 14:14:38 2023, KHK, GC, Runs, , General, background_after60Ni
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| background run after 60Ni - lots of lines from the activation... |
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Mon Jun 19 14:13:01 2023, KHK, Problems, , Other, no beam until Wednesday afternoon
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Mon Jun 19 12:07:19 2023, KHK, Problems, , Other, no beam until Wednesday afternoon
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Mon Jun 19 05:57:48 2023, KWL JSP, Problems, , Other, Spark in Tandem - beam will be back in ~ 2 hours
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There was a spark in TAndem at ~ 5.30 AM , HAkim came and said we will have a beam back at around 2 hours.
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Mon Jun 19 03:34:33 2023, KWL JSP, Runs, , General, Run 36
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3:28 -START 18enA STOP :5:30 - SPARK in tandem
DSSD:CH0 10.975 uA
CH2 6.355 uA |
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Mon Jun 19 01:33:53 2023, KWL JSP, Runs, , General, run 35
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2:20 - intensity dropped to 26 enA (from 40 enA at the beginning of this run)
DSSD:
CH0: 11.25 uA |
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Sun Jun 18 23:23:31 2023, All, Runs, , General, run 34
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at 00:40 beam intensity dropped to ~ 9enA . We increased the beam intensity by changing a stripper foil which resulted in 40 enA (~ 250 c in strip 1
counter in DSSD) (KWL and JSP).
ch0: 24.96V 11.21uA |
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Sun Jun 18 21:27:16 2023, all, Runs, , , run 33
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ch0 11.08
ch2 6.20
ch3 4.71 |
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Sun Jun 18 19:26:16 2023, KHK, Runs, , General, run_32
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ch0 10.925
ch2 6.250
ch3 4.955 |
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Sun Jun 18 19:24:19 2023, All, Other, , Other, change the foils every ~2 hours
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PAY attention to the stripper foil.
If the beam intensity drops to 15 enA, check the stripper foil.
It should be ~5 enA after the target (the meter on the counter) |
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Sun Jun 18 17:25:25 2023, NM, MR, Runs, , General, run 31
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ch0: 24.96V 11.08uA
ch2: 25.01V 6.20uA
ch3: 25.00V 4.71uA |
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Sun Jun 18 17:02:33 2023, NM, MR, AJM, Runs, , , run 30
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This was a short run after a tandem spark. Beam current at target was 7 nA, but ion source output was 800 nA. Much less than expected. Stopping run to
investigate further in the target area.
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Sun Jun 18 16:43:31 2023, all, Runs, , , Run 29
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DAQ started at : 23-06-18 at 16h-03m-28s
==> Shell name : ./.user_start.sh |
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Sun Jun 18 15:23:42 2023, All, Runs, , General, run_23 - first 60Ni on 197Au - tuning
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| up to run 28 beam intensity of about 4.5 enA |
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Sun Jun 18 10:04:05 2023, Natalia, AJ, Runs, , General, Run 21
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Ch0 10.325
Ch2 5.886
Ch3 4.385 |
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Sun Jun 18 08:04:16 2023, NM, MR, AJM, Runs, , General, run 20
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File name : run
Run number : 20
User commentary : 62Ni on 197Au, intensity 2.2 enA |
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Sun Jun 18 06:11:26 2023, NM, MR, Runs, , General, run 19
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ch0: 24.96V 10.43uA
ch2: 25.01V 5.93uA
ch3: 25.00V 4.37uA |
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Sun Jun 18 04:14:06 2023, NM, MR, Runs, , General, run18
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ch0: 24.96V 10.53uA
ch2: 25.01V 5.97uA
ch3: 25.00V 4.57uA |
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