 Sat Jun 17 20:42:04 2023, DK, KS, KHK, Problems, , tests, DSSD - channels S1 0-5 - efficiency drop 
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we reset the DAQ and did the module_restart with the card IP 192.168.3.78
no change
we restarted the HV DSSD - no change |
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Sat Jun 17 20:56:44 2023, DK, KS, Runs, , General, run_14
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Beam intensity started at 20 enA, went to 8.5 enA and keep decreasing (up to 3enA), wriging ~5.3 KiB/s
Intensity dropped to 3enA, Hakim came and increased it back to 20enA from subrun 24-25 onward.
==> DAQ started at : 23-06-17 at 21h-08m-29s |
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Sat Jun 17 22:48:18 2023, DK, KS, Runs, , , run_15
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Beam intensity - 5enA
ch0: 24.96V 10.94uA |
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Sun Jun 18 00:56:12 2023, NM, MR, Runs, , General, run16
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File name : run
Run number : 16
User commentary : 62Ni on 197Au, intensity 4 enA |
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Sun Jun 18 01:30:21 2023, NM, MR, Other, , Other, Particle spectra
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We observed a decrease in the particle energies. We attached one channel comparing with the same but from run 5. We keep running.
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Sun Jun 18 02:57:23 2023, NM, MR, Runs, , General, Run 17
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ch0: 24.96V 10.87uA
ch2: 25.01V 6.26uA
ch3: 25.00V 4.86uA |
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Sun Jun 18 03:45:22 2023, NM, MR, Problems, , General, Ru 17 stopped
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Run 17 stopped because accelerator discharged
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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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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 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 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 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 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 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 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 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 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 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 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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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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