 Sun Apr 3 00:41:45 2022, Ken Ueberholz , , Xuv-Detektor Signale 
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The Xuv-detector cabel channels seem to be
wrongly labeled in the Messhütte (see
picture) and are propably also wrongly
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Sat Apr 2 23:16:55 2022, Carsten, , Cu mirror and CsI moved in and out of the ring
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| Ken tested the Cu-mirror and CsI disk Detector. They move without a problem and don't scrape the ion beam. |
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Sat Apr 2 22:43:36 2022, Carsten, , Ring set-up for 229/89+, scraped and bunched, Iel=500mA at injection and 100mA during measurment
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The ring SIS/ESR were set up for 229/89+. Pölease note that this not only 1e- Th but ponteially also the isobars of Ac (0e-1)/Pa(2e-, strongest) and U(3e-).
SIS eenrgy plus 3.5 MeV/u w.r.t. to the 238U92+ settings. We nearly don't see any of the primary beam in the ring
Cooling energy is 208998 KeV (read from the ESR multimeter).
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Sat Apr 2 18:28:47 2022, Markus/Bernd, Accelerator, SIS setting complete for fragments in ESR: 2022-04-02_18-09-10_SIS18_FAST_E142_20220325_110213.C1.txt
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# Version: 1.2 # Comment: ParamModi Export at 2022-04-02T18:09:36.402593+02:00[Europe/Berlin] # Context: SIS18_FAST_E142_20220325_110213.C1 # Columns: PARAMETERNAME,VALUE,UNIT,BEAMPROCESSPURPOSE
LOGICAL.GTK7MU5/HKICK,0.0,rad,TRANSFER_INJECTION LOGICAL.GTK7MU5/HKICK_THEO,0.0018,rad,TRANSFER_INJECTION LOGICAL.GTK7BC1L/HKICK,0.0,rad,TRANSFER_INJECTION |
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Sat Apr 2 18:19:47 2022, Yuri, Accelerator, Scraping
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Sat Apr 2 18:17:31 2022, Yuri, Accelerator, Photo-Identification
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| Just a photo of the ID |
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Sat Apr 2 17:47:16 2022, Ken Ueberholz , , Telefon, Gästehaus
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| My guesthouse phone number: 06159-71-2957 |
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Sat Apr 2 16:10:22 2022, Markus, Bernd, Accelerator, SIS setting complete, U90+ mit Be target: 2022-04-02_16-04-00_SIS18_FAST_E142_20220325_110213.C1.txt
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# Version: 1.2
# Comment: ParamModi Export at 2022-04-02T16:04:10.778077+02:00[Europe/Berlin]
# Context: SIS18_FAST_E142_20220325_110213.C1
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Sat Apr 2 15:54:32 2022, Carsten, Accelerator, ESR setup with primary beam and 1cm Be plate + Schottky data on NTCAP
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MArkus and Bernd have setup the ESR with the thick stripper foil and put the ion beam (238U92+) on the central orbit.
SIS Energy is 536 MeV/u
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Sat Apr 2 10:22:21 2022, Rui-Jiu Chen, Ragan, General, Beam is in the ESR
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| Primary beam is in the ESR now. Markus and the team are tuning the ESR. |
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Sat Apr 2 05:08:00 2022, Kristian, General, Morning shift
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I see no updates in the log. Is the morning shift taking place?
For now I will stay at home and be on call. I can be at GSI in 20 min. Please let me know the status.
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Sat Apr 2 01:27:25 2022, Jan Glorius, Runs, test runs 02.04.2022
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Beam settings:
primary beam
copper stripper
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Sat Apr 2 01:02:39 2022, Carsten, , Test measurements with two DAQs
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We do two measurements:
One measurement using the |
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Fri Apr 1 23:47:45 2022, Carsten, Detectors, PMT thresholds / PMT north does not allow voltage abow ~ -1kV
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Checked thresholds of PMT with beam and without beam.
The [B]PMT "south"[/B] which is now at the gas-jet target has burst-like pulses with a train of many short pulses of duration of about 1us. The signals |
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Fri Apr 1 23:12:37 2022, Patrick, Detectors, Scraper positions "only primary beam"
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Scraper positions where there is only primary beam for detector tests. Use only one outer and one inner scraper at the same time.
[B]Move detectors out before new beam![/B]
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Wed Mar 23 11:20:55 2022, Simon, Detectors, PMT operating voltages
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During the testing of the PMTs the following operating voltages were applied:
PMT Cu: -1300V
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 Fri Apr 1 22:01:14 2022, Konstantin, Detectors, PMT operating voltages
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> During the testing of the PMTs the following operating voltages were applied:
>
> PMT Cu: -1300V
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Fri Apr 1 18:30:38 2022, Carsten, Detectors, Positions / Voltages threshlds for particle detectors
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[B]DC beam 238U92+ (205kV, e-beam)[/B]
We used the detector NA_SZ to determine the central primary-beam (238U92+) position by observing the Schottky-signal while moving the detector inside.
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Fri Apr 1 18:19:58 2022, Kristian, Calibration, HV divider
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We checked the strange behavior of the HV dividers again. The Ohmlabs and the PTB divider are in good agreement at 120 kV and 150 kV. There, both dividers
deviated by 0.35% from the value on the HKR multimeter. Ohmlabs divider yields higher voltage.
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Fri Apr 1 16:46:33 2022, Carsten, Detectors, All pressuzied air drives are tested now and are working properly
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| All pressuzied air drives are tested now and are working properly |
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Fri Apr 1 15:52:23 2022, Rodolfo, Detectors, UV PMT South
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The "Solar Blind PMT" labeled as "PMT South" has been installed by Simon and Max in the gas target chamber on a CaF Viewport. The PMT is pointing directly
to the center chamber.
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