 Sun Jun 8 11:55:00 2025, EM, PC, JM, CB, EW, AY, CB, PJW, YuL, Run 58,59,60, 61 50x
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12:52
Started Run 58 - Beam energy 200 keV/u.
Slow comparator threshold set to 0xc (130 keV) for all channels. Fast discriminators turned OFF for all channels by setting enable mask in discrinator |
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Sun Jun 8 10:05:30 2025, EM, PC, JM, Run57
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11:06
Run during beam change. We will go down to 200 keV/u
All the checks are ok. |
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Sun Jun 8 09:07:22 2025, EM, PC, JM, Run56
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NOTE: RunR55 is missing
Run56: Background run with 250 keV/u. Target off using the usual procedure.
All checks ok! |
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Sat Jun 7 10:23:26 2025, JM, CB, carme-gsi rebooted
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10:00
The computer screen controlling the DAQ on carme-gsi appeared to have crashed.
Unable to move throught the different windows etc. |
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Sat Jun 7 10:06:27 2025, JM, EM, CB, DB, AY, PC, CB, Run 54 50x
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11:10
We have started a new run at the same energy as R53 (250 keV/u) due to an issue with the DAQ pc
Server and DAQ restarted |
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Fri Jun 6 17:27:03 2025, AY, ST, JM, EM, DB, Run 53 11x
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Run 53 started at 18:25 (started already earlier but since then data is taken). Everything is running again. We started at 3E12 at/cm2.
Side comment: Gleb told us 1h ago that he will switch to coasted mode and call us back as soon as he is done. So far he didn't call back and
he is not in the office... So we decided to start data taking already. But: the software says that coasting mode is already on, but the graph looks like |
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Fri Jun 6 16:49:59 2025, CB, AY, ST, Beam overlap results for 200keV and 250keV
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For 200keV the optimal horizontal position is -5mm.
For 250keV the optimal horizontal position is -2mm.
Both values are already given to the operators, so tomorrow we can just switch to 200keV and go on :) |
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Thu Jun 5 16:54:18 2025, EW, ST, CB, Run 52 - 0.3 MeV/A 14x
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Run 52 started at 17:53. Everything is running again. We started at 3E12 at/cm2
D+ beam deuterium target. D+ beam energy is now 0.3 MeV/u. (beam calc calculation is 0.3067 MeV/u).
All four detectors positioned fully out and stationary and also detector #4 is running again. |
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Thu Jun 5 08:50:00 2025, JM, CF, CB, EW, Run 51 - background
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09:49
DSSD4 has been biased to 100V in steps of 5V from 60V. It was previously stable overnight at 60V - attachment 1
Will keep an eye on it but looks OK at the moment. Current bias and leakage current - attachment 2 |
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Wed Jun 4 10:44:36 2025, EW, CB, JM, OF, JG, ST, Run 50 - 0.35 MeV/A 13x
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11:30
Run 50 started.
D+ beam deuterium target. D+ beam energy is 0.35 MeV/u. (beam calc calculation is 0.3577 MeV/u) |
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Wed Jun 4 00:10:39 2025, JM, Run 49 - beam only 6x
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01:10
Gas target turned off via the shutter valve.
Run 49 started beam only background run. |
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Tue Jun 3 14:54:29 2025, PMH, ST, Run 48 6x
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Run 48 started. Everything is running again. We started at 3E13 at/cm2
D+ beam deuterium target. D+ beam energy is still 0.5 MeV/u. (beam calc calculation is 0.5143 MeV/u). See previous entry for beamcalc.
All four detectors positioned fully out and stationary, however we switched off detector #4. |
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Tue Jun 3 11:16:07 2025, EW, EM, JM, Run 47, beam only background
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Run 47 started. Target cooling down after water cooler failure, beam only background
D+ beam deuterium target. D+ beam energy is 0.5 MeV/u. (beam calc calculation is 0.5143 MeV/u). See previous entry for beamcalc.
All four detectors positioned fully out and stationary. |
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Mon Jun 2 20:03:43 2025, JG, AG, CB, EW, EM, Run 45/46, 0.5 MeV/A 13x
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Run 45 started.
D+ beam deuterium target. D+ beam energy is 0.5 MeV/u. (beam calc calculation is 0.5143 MeV/u). See attachment for beamCalc
Target density is about 2e12 at/cm2 |
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Mon Jun 2 17:48:07 2025, JG, AG, Run 44 scraper tests
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Same settings are Run 43 but with coasting beam and scrapers set to: 30 / - 30 mm.
all checks ok, but WR timestamp error, see attached |
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Mon Jun 2 17:25:31 2025, JG, AG, Run 43 scraper tests
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Same settings are Run 42 but bunched beam and scrapers set to: 30 / - 30 mm.
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Mon Jun 2 16:35:35 2025, EW, AG, Run 42 and scraper tests
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17:00
Scraper tests conducted. We tried moving in the scrapers both at a fixed position throughout and also moving with the injection cycle.
We were unable to find a good position with the scrapers that did not produce significant scattering in the detectors. |
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Mon Jun 2 09:30:38 2025, JM, EW, ST, Run 41 6x
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Run 41 started.
D+ beam deuterium target. D+ beam energy is 0.75 MeV/u. (beam calc calculation is 0.7619 MeV/u). See previous entry for beamcalc.
Beam calc - Attachment 1 |
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Sun Jun 1 15:33:50 2025, EW, JM, CB, Run 40 10x
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16:30
Run 40 started.
D+ beam deuterium target. D+ beam energy is 0.75 MeV/u. (beam calc calculation is 0.7619 MeV/u) |
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Sun Jun 1 07:46:34 2025, JM, EM, CB, Run 39 7x
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08:45
Run 39 started.
D+ beam deuterium target. D+ beam energy is 1.0 MeV/u. (beam calc calculation is 1.0151 MeV/u) |