 Thu Apr 7 05:23:50 2022, Patrick, DAQ, How To Start MBS for DAQ2 (Carstens DAQ)
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(MBS server should be running at the LXG0155 machine. If not you will get an error message. Then start the server - last command in console)
Just enter the following commands in the console of any PC
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Fri Apr 8 00:06:37 2022, Patrick, Laser, Connection to the laser pc
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To login to the laser pc use the command
xfreerdp -g 1920x1080 -u atplaser atppc023.campus.gsi.de |
Fri Apr 8 01:48:57 2022, Patrick, DAQ, Bugged Trending plots? 
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The wavelengths/frequencies shown in the graph in the labview window do not match the wavelengths/frequencies in go4.
Compare the picture which shows an incomplete laser scan although the scans in the labview window are completed (The measurement was started at an 'elapsed
MBS time' of 2700s and took 1700s/28min).
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Fri Apr 8 03:54:39 2022, Patrick, Laser, Q-switch window
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The solution of increasing the Q-switch window from 2us to 5us described in [I]ID:148[/I] fulfills its purpose, but the window is unstable.
We saw the laser jumping across the screen which was because the Laser had a lot of hickups.
The hickups come from the signal which determines the duration of the window.
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Fri Apr 8 22:26:44 2022, Patrick, DAQ, Spike in all detectors
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In the previous shift, there was a spike in all detectors in the same scan step. Apparently, this was NOT a resonance since in the next step it appeared
again but at a different wavelength.
The current hypothesis is, that this is a disruption signal from one of the machines. |
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Fri Apr 8 23:56:07 2022, Patrick, DAQ, DAQ improvement
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As requested in ID:146 and ID:147, the laserscan tab was improved:
[LIST]
[*] The laserscan tab shows each observable plotted against the predefined wavelength setpoints now.
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Sat Apr 9 03:27:47 2022, Patrick, DAQ, Laser scanning
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DAQ1: lxg1927:/data.local2/BeamTimeTh22/
DAQ2: lxg0155:/data.local2/E142/
LMD file name DAQ1:229Thor
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Sat Apr 9 04:40:01 2022, Patrick, DAQ, Bugged Trending plots?
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The problem from yesterday (ID:147) still persists. All the plots (not only the labview stuff) comes in too late in go4. However, the time axis is correct,
see picture. |
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Sat Apr 9 05:26:25 2022, Patrick, Laser, Wavemeter
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| The wavemeter still shows large spikes from time to time. The exposure time is still at 34ms. |
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Sun Apr 10 02:20:17 2022, Patrick, DAQ, New mbs startup guide
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Connecting to the rfio server and opening a file is included in '@startup' now. Since mbs crashes reliably every 3 or 4 runs, it may be preferable to use
the following procedure (which did not crash yet):
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Sun Apr 10 04:07:53 2022, Patrick, DAQ, go4 shows wrong frequencies and wavelengths
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[B]Update (ID:194):[/B] In labview "Stop All", close labview, stop python script (ID:197), close wavemeter. Then restart wavemeter, python script, labview
an mbs.
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Sun Apr 10 04:37:29 2022, Patrick, DAQ, Next wavelength range
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Measurements with the next wavelength scan range should be started roughly around 12:00 noon. The plan is to go to lower wavelengths / higher energies.
So the next wavelength scan range would be 322.81 - 322.4 nm, again with a step size of 0.002 nm and 5s dwell time.
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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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Thu Apr 7 22:18:06 2022, Night shift 7.4-8.4, , Next scans
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DAQ1: lxg1927:/data.local2/BeamTimeTh22/
DAQ2: lxg0155:/data.local2/E142/
LMD file name DAQ1:229Thor
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Wed Apr 6 13:32:57 2022, Max, Sebastian, DAQ, LabView Cobra Channel List
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channel 0: linux time (epoch time)
channel 1: ms timer
channel 2: E-Cooler Voltage(Ohmlabs)
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Thu Apr 7 11:11:31 2022, Max, Sebastian, Laser, dye changed, pulse energy measurements
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We changed the dye at 10am.
We increased the pump power for the dye Laser to 480mJ (before 450mJ). New calibration factor is 29 for Quanta Ray monitor signal.
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Thu Apr 14 06:29:18 2022, Max, Sebastian, Accelerator, lesser ESR injection intensity
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We now have less ESR injection intensity (see screenshot attached).
This can also be seen in the count rate after "UNILAC/SIS failures".
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Sat Apr 9 06:25:22 2022, Max, Kristian, Runs, morning shift runs
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DAQ1: lxg1927:/data.local2/BeamTimeTh22/
DAQ2: lxg0155:/data.local2/E142/
LMD file name DAQ1:229Thor
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Sat Apr 9 13:45:42 2022, Max, Kristian, Runs, first scans with LV problem solved!
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This is the first time with LV buffer problem solved (see Elog ID: 184). Before the PMT signals were out of sync with the wavelength data!
We concluded to scan with step sizes of 0.002nm, scan range of 0.5nm (f
nm), dwelltime = 150(5s), loops = 2 (approx.: 30min measurements).
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Fri Apr 15 12:42:18 2022, Max, Danyal, Carsten, Konstantin, Patrick, Simon, General, laser wavelength range changed: 320.12 - 319.60 nm
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Runs of the morning/afternoon/night shift. The wavelength range is now 320.12 - 319.60 nm.
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