 Sun May 9 08:00:03 2021, Liliana, Andrew, General, Status 
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So far, we keep the setting as it is and wait for experts to come in.
Few spills are missing from time to time. One of the peaks stays usually in the spectrum when this happens.
Analysis of the last hours is being performed by the remote shift, in case it is useful. Some plots in telegram. |
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Mon May 10 00:51:38 2021, Kanika, Alex, RuiJiu, General, No beam in SIS
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The beam was lost in SIS about 5 mins ago due to the failure of HF cavities. Operators are trying to solve the problem. |
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Mon May 10 01:01:59 2021, Kanika, Alex, RuiJiu, General, Beam is back
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The issue has been resolved and the beam is back since 00:56. |
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Mon May 10 01:34:37 2021, Chris C, General, Zoom screenshot
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How things look currently in Zoom-world. |
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Mon May 10 08:49:01 2021, Kanika, Alex, RuiJiu, General, End of the measurement
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The beam was stopped at about 08:40. |
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Wed Jun 30 14:48:54 2021, Oliver, General, Data taking - and not...
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We just started data taking. But a few minutes later the main experiment needed to do some adjustements to the beam. This interrupts us for a couple of minutes... |
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Wed Jun 30 14:52:28 2021, Oliver, General, Re-Started data taking...
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Main user is finished. We started data taking again... |
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Wed Jun 30 20:14:44 2021, Ragan, Helena, General, Drop in SIS intensity
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There is a drop in SIS intensity and the operators are informed. |
 Wed Jun 30 20:21:47 2021, Ragan, Helena, General, SIS intensity is back
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SIS intensity is back |
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Wed Jun 30 20:58:06 2021, Ragan, Helena, General, Few minutes of disruption
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There was a disruption from the SIS side for a few minutes. |
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Thu Jul 1 00:09:28 2021, David, Liliana, General, Low beam intensity for few minutes
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For few minutes (starting at 00:05) beam intensity went down. Same as it was reported by the previous shift.
Until 00:27 beam had lower intensity than before (3e8)
Now intensity is back to 5e8. |
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Thu Jul 1 01:35:15 2021, David, Liliana, General, Ion source change
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Changing ion source, no beam expected for the next 30 minutes.
2:15--> Beam is back, intensity not as high as before but will increase in the next few minutes as the source gets hotter. |
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Thu Jul 1 04:15:54 2021, David, Liliana, General, Beam intensity
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From 4:05 to 4:15 beam intensity was 1/2 as before. |
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Thu Jul 1 16:27:57 2021, Andrew Nic, General, NTCAP parameters
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The latest recorded tdms files:
p:\E143\sc\SC_2021-06-30_23-27-45\0000233
p:\E143\iq\IQ_2021-06-30_23-27-34\0001138
2. The rest space on the drive "p:\" : 30,4TByte |
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Thu Jul 1 18:54:44 2021, Andrew, Nic, General, NTCap Status
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The latest recorded tdms files:
p:\E143\sc\SC_2021-06-30_23-27-45\0000267
p:\E143\iq\IQ_2021-06-30_23-27-34\0001305
2. The rest space on the drive "p:\" : 29,8TByte |
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Thu Jul 1 23:46:17 2021, Iris, General, Less beam after gas bottle change?
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Looks like there is a bit less beam now in the ring. I just looked at one spectra from before the gas bottle change and after... |
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Thu Jul 1 23:54:43 2021, Iris, General, Less beam after gas bottle change?
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No, everything okay! Must have had a very good earlier run to compare.
> Looks like there is a bit less beam now in the ring. I just looked at one spectra from before the gas bottle change and after... |
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Fri Jul 2 17:31:04 2021, Liliana, General, status
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at 17:20 intensity was suddenly reduced.
Operators checked. Intensity was a bit low and fluctuating for a while (8e8 to 1e9)
Intensity (1.5e9) was recovered at 18:16 |
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Sat Jul 3 08:12:22 2021, Dima, Yuri, General, Beam stop
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We stopped the beam at 08:10
The latest recorded tdms files:
p:\E143\sc\SC_2021-06-30_23-27-45\0000778
p:\E143\iq\IQ_2021-06-30_23-27-34\0003806
2. The rest space on the drive "p:\" : 20,0 TByte |
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Thu May 6 13:26:56 2021, Helmut Weick, Detectors, TE5 profile grids do not work
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There are several issues.
1. The stepper motor drive does not react from Device-Control, -> check controller in FRS Messhütte
2. They don't get a trigger, other grids in TE-line do -> check raw signals also in FRS Messhütte, ask Strahldiagnose
3. For less noise pockets of grids should be evacuated, but most likely the pump is still off or not even connected -> enter ESR and connect
Check also manual at https://web-docs.gsi.de/~weick/frs/current_grids.html
Below picture of no trigger shown in App. Usually it should say last trigger a few seconds ago and display some noise. |