 Tue Apr 12 12:41:20 2022, Alexandre, Sebastian, Accelerator, no beam in SIS18
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Tue Apr 12 04:43:29 2022, Alexandre, Kristian, Sebastian, Runs, 322.01 - 321.60 nm 
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We scan the wavelength scan range is 322.01 - 321.60 nm
before the first scan of the new wavelength range we changed the high voltage divider ratio in Labview from 248514 to 248517, which is the correct value |
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Mon Apr 11 22:33:16 2022, Carsten, General, Backup of data to the external RAID disks
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Mon Apr 11 22:14:51 2022, Konstantin, Sarper, Laser, Changing of the wavelength range
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| It is planned to change the scan range of the laser wavelength from 322.41 - 322.0 nm to 322.01 - 321.6 nm @ 4 a.m. |
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Mon Apr 11 18:57:18 2022, Rodolfo, Laser, New flashlamps
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We (Sarper, Konstantin and me) have changed the old flashlamps (with ~ 26 Mio. shots) by new "fresh" ones. We have also exchange the dye. Here are some
parameters of the laser we measured with the new flashlamps and dye*:
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Mon Apr 11 18:46:31 2022, Rodolfo, Sarper and Konstantin, Laser, Alignment-check
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We cross-checked the laser-ion alignment. The horizontal position was optimized. However,
since the laser beam is much larger than the ion beam, this was not an issue for measurements, which
have been performed during the last shifts.
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Mon Apr 11 14:45:11 2022, Paul, Konstantin, Sarper, David, Runs, Afternoon shift runs 11.04
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We continue scan the new wavelength scan range is 322.41 - 322.00 nm
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Mon Apr 11 12:50:22 2022, Kristian, Accelerator, Th lifetime
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We used the counter to measure the lifetime. During the 30 min scan time dropped only slowly.
During a longer break, e.g., when the laser flash lamps are changed, one could take data over a longer time. |
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Mon Apr 11 11:05:35 2022, Sebastian, Kristian, Laser, Check laser power
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we checked the UV laser power at 10:15 am. It was only 8.5 - 9 mJ. Pumping power was 460 mJ, which is the maximum output of the current system. We should
change the flashlamps soon |
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Mon Apr 11 10:31:07 2022, Kristian, Sebastian, Alexandre, Danyal, Paul, General, new laser wavelength scan range 322.41 - 322.00 nm
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new wavelength scan range is 322.41 - 322.00 nm
at 10:31
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Mon Apr 11 10:17:01 2022, Danyal, Accelerator, Interlock - reset
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10:17
Wie heutemorgen in der Sitzung (morning briefing) vereinbart,
führt Herr Florenkowski einen Interlock und danach einen Reset von E02MK durch.
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Mon Apr 11 07:54:37 2022, Danyal, Alexandre, Kristian, Sebastian, Accelerator, Jump in E-cooler voltage
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We saw a jump in the E-cooler voltage at about 7:50.
jump from 209619 to 209610 V
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Mon Apr 11 04:26:53 2022, Patrick, DAQ, Next wavelength range
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Measurements with the next wavelength scan range should be started roughly around 10:00 am.
The next wavelength scan range is planned to be 322.41 - 322.00 nm, again with a step size of 0.002 nm, 5s dwell time and 2 loops.
This range includes roughly a third of the first scan range. |
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Sun Apr 10 22:47:05 2022, Patrick, Volker, Prannay, Danyal, Alexandre, Sebastian, Kristian, Runs, Runs night shift 10.04 + morning shift 11.04
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These are the measurement runs of the night shift (10/11.04.).
Wavelength range is still 322.81 - 322.40 nm.
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Sun Apr 10 15:29:53 2022, Rodolfo, Laser, Status - Laser system
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We have checked the laser system.
- The pump laser has ~ 23Mio shots. The total output energy has dropped to about 475 mJ. Maybe it is time to install new fresh flashlamps. In case the |
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Sun Apr 10 15:29:37 2022, Carsten,Sarper, Accelerator, Ecooler failed
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Ecooler failed @15:23 Carsten is fixing it
Fixed @16:00 |
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Sun Apr 10 15:16:19 2022, Carsten, Rodolfo, Sarper, Runs, Runs afternoon shifts 10.04
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These are the measurement runs of the afternoon shift (10.04.).
Wavelength range is changed from 323.2 - 322.8 nm to 322.81 - 322.40 nm.
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Sun Apr 10 15:08:42 2022, Carsten, DAQ, Backup of Data from 1rst Scanrange to extrenal RAID1 HDDs
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I just performed a backup of all data (+log-Files) that were collected until now to the two RAID HDDs.
For DAQ1: /media/sdc2 - last file 229Thor7889.lmd. Please note, that the naming sceme on DAQ1 is inconsistent - please look for the filenumnbering
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Sun Apr 10 13:17:53 2022, Kristian, Max, DAQ, Wavemeter readout
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We changed the Labview code in order to reduce the amount of data that was overfilling the WM data queue. We removed the temperature and intensity values
and added an additional 250ms wait.
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Sun Apr 10 11:11:18 2022, Kristian, Max, Laser, additional WM readout
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since the WM readout still does not work reliably, I started a python script at atppc023 that saves timestamp and wavemeter frequency. in folder wavemeter
at the desktop.
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