 Sun May 19 11:02:49 2024, Xu Zhou, Yuhu Zhang, Kanika, Accelerator, the beam is paused
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| The beam is paused and HHT team needs to enter the ring. |
Fri May 17 23:14:51 2024, Yoshi, Ohnishi, General, shift started 
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| Just test |
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Sat May 18 16:45:15 2024, Helmut, Yury, Accelerator, setting for 96Sr (98Y)
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To have a few more lines the setting actually is not on 96Sr directly, but on 98Y39+.
98Y is also the one set to be isochronous.
But in addition the SIS-energy is shifted by -0.9 MeV/u to get at least better transmission for 96Sr. |
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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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Sat May 18 02:22:30 2024, Helmut Weick, Accelerator, paper log book pages 17.05.2024
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| until we lost the beam in the night. |
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Tue May 14 23:40:03 2024, Helmut, Sergey, Yury, Accelerator, paper log book
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two pages of log book on paper for teh first setup,
injection into ESR and tuning primary beam 100Mo and fragment 98Mo. |
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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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Mon May 6 12:16:09 2024, Ruijiu Chen, DAQ, ntcap scaler
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Fri May 17 17:50:49 2024, Jelena B, Zsolt P., Shahab, DAQ, new trigger events
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| From 17:49 we have super short trigger. - see attached setting! |
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Thu May 16 18:55:38 2024, Ide, Hubbard, General, new timing cycle
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| new timing cycle of 6.7s |
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Thu May 16 15:24:30 2024, Ide, Hubbard, Accelerator, new Plunger setting
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plunger motors were set
to +/-390 mm for 245 MHz resonator
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Tue May 14 23:22:55 2024, Helmut Weick, Accelerator, isochronicity curves
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Sergey started with a setting with quadrupoles already changed like in 2021.
Ths was used for the first isochronicity curves.
It also gave soem, however, not good peak shapes with scrapers closed.
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Tue May 14 22:13:38 2024, David, Ruijiu, David, Asahi, DAQ, doing some test runs without accelerator trigger
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| empty shots for test. |
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Sun May 19 14:17:57 2024, Shahab, Kanika,hongfu li,xing xu, DAQ, center frequency change for 96Sr
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aiming for 96-Sr:
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Fri May 17 17:09:26 2024, Helmut, Yury, Accelerator, approx. 96Sr setting (98Zr39+)
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Only 96Sr would yield very few line with only ions from time to time.
So we went a bit lower in Brho 7.69 Tm -> 7.65 Tm.
The setting is calculated as a 98Mo39+.
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Fri May 17 17:03:39 2024, Helmut, Yury, Accelerator, approx. 96Sr setting
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Only 96Sr would yield very few line with only ions from tiem to time.
So we went a bit lower in Brho 7.69 Tm -> 7.65 Tm.
The setting is calculated as a 98Mo39+.
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Thu May 16 14:52:45 2024, Shahab, DAQ, Zr recording
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| Recording Zr starting from 14:45 again back to short cycle. |
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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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Thu May 16 12:48:58 2024, Sergey, Accelerator, Tune to 98Zr
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- stop longer measurements
- change quadrupole and sextupole magnets
- rescale SIS-TE-ESR |
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Sat May 18 00:37:21 2024, Helmut, Wolfram, Shahab, David, Xinliang, Runs, Trying to get back to Zr setting
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