 Wed May 15 19:20:32 2024, Helmut Weick, Accelerator, scraper setting 
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After the orbit correction on the target straight section the scrapers work better.
One pair of scrapers works best:
GEEXDS2HA (outside straight section = low Brho side) = -4.0 mm
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Wed May 15 18:37:36 2024, Jeroen, Johan, Shahab, Runs, Beam returned to ESR
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| Beam returned at 18:30:55. Taking data with new triggers. |
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Wed May 15 17:47:34 2024, Jeroen, Johan, Shahab, General, New Trigger Setup
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| We changed the trigger setup, see attachment |
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Wed May 15 17:45:09 2024, Jeroen, Johan, General, No beam to ESR
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| Beam lost from SIS18 at 17:41:41. |
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Wed May 15 17:22:43 2024, Jeroen, Shahab, Johan, Runs, 98Mo run
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| Beam tuned at 4:50, data acquisition aligned for 98Mo at 4:56. |
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Wed May 15 16:55:10 2024, Jeroen, Johan, General, Tuning ESR scraper. Isomer resolved.
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4:50 Scraper tuned to produce Gaussian beam profile for 98Mo. Isomer now clearly resolved.
Plan to take data for 98Mo fragment for 12 hours. Measurements from 4:59 are now aligned so that the Molybdenum fragment is centered in the RSA acquisition. |
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Wed May 15 13:39:10 2024, Beatriz, Min, General, ESR setting
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| From 13:37 ESR will be changed again. Now back to the primary beam, it will be attempted to measure the orbit of the beam. |
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Wed May 15 12:58:12 2024, Beatriz, Min, Shahab, Runs, optimizing the mass resolution
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Yuri and Sergey still optimizing the mass resolution.
From 13:10 to ~ 13:35 SIS energy was increased to 457.4 (~3 MeV/u) to test whether this moves the best isochronicity to 98Mo (we were off before), -> Brho(98Mo)=7.12736 |
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Wed May 15 11:59:32 2024, Beatriz, Min, DAQ, File transfer to lustre looks to be stopped
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| File transfer to lustre looks to be stopped at around 11:35AM |
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Wed May 15 11:45:22 2024, David, Analysis, Lustre Trouble
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Since around 11:30, Lustre is down, therefore in https://sparc-daq-02.gsi.de/, the spectrograms are not being updated. Expected time to recovery > 2 hours.
The data will still be stored on the local hardisk. Whenever Lustre is online, we start file transfer and analysis.
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Wed May 15 10:58:32 2024, Beatriz, Min, General, Beam returned to ESR
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| Beam recovery at around 10:52:30. Sergey and Yuri still tuning the mass resolution. |
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Wed May 15 09:35:08 2024, Beatriz, Min, General, No beam
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| At 9:32 we lost the beam. They have to work in the Unilac and there will be no beam for 45 minutes. |
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Wed May 15 06:15:02 2024, Chris, Asahi, DAQ, Data transfer to lustre looks to be stopped
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File transfer to lustre looks to be stopped at 6:03
File copy program had stopped for some reason.
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Wed May 15 02:12:59 2024, Chris G, Asahi Y, General, Beam returned to ESR
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| Injection to ESR restarted around 02:12:15 |
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Wed May 15 02:07:02 2024, Chris G, Asahi Y, General, No beam to ESR
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Injection to ESR stopped around 02:04:45.
Will continue to write data in hope that beam returns shortly. |
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Wed May 15 01:27:13 2024, David, Asahi, Shahab, Chris, DAQ, Restarted data taking
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Data taking restarted at 01:27 following re-alignment of the RSAs.
Also reduced number of processing threads to 10. |
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Wed May 15 01:11:45 2024, David, Asahi, Shahab, Chris, Ruijiu, General, Time optimisation
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DAQ stopped at 01:11 to optimise data taking cycle of RSAs.
Changed data writing time from 2s -> 1.8s. |
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Wed May 15 00:26:53 2024, David, Asahi, Shahab, Chris, Ruijiu, Runs, First data file - 00:26
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Centered resonant frequency on 98Mo+42 at the 126 harmonic (243.925 MHz) and 211 harmonic (408.483 MHz).
Recording for 2 seconds (injection start at 10%), injection every 6 seconds. |
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Wed May 15 00:17:24 2024, David, Asahi, Shahab, Chris, Ruijiu, DAQ, Optimizing the 245 resonance curve
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Wed May 15 00:06:10 2024, David, Asahi, Shahab, Chris, Ruijiu, DAQ, Optimizing the 410 resonance curve
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