 Fri Apr 1 15:27:00 2022, Rodolfo, Detectors, Nitrogen for UV-PMTs 
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There was a question concerning the nitrogen we use to rinse the "Solar Blind PMTs".
- I have checked the nitrogen flow rate this afternoon (14:00) and it was a level of 0.2 LPM.
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Fri Apr 1 11:19:57 2022, Rui-Jiu Chen, DAQ, S.M.A.R.T check on NTCAP
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| S.M.A.R.T. check has been done on NTCAP on March 28th. All 12 hard disk drivers are normal. |
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Fri Apr 1 11:00:41 2022, Rui-Jiu Chen, DAQ, Start NTCAP
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Start taking data with NTCAP.
Carrier Frequency: 245MHz
IQ rate:5 MSamples/s
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Fri Apr 1 02:29:40 2022, Carsten, , ESR Cooler crashed
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| ESR cooler crashed. We could not restart the cooler. Since we had several other problems, we stop now. |
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Fri Apr 1 01:57:12 2022, Kristian, DAQ, Timing
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with bunched primary beam (bunching frequency 1.94070 MHz) we have strong PMT (mid) and particle detector signal. Time between both detectors was measured
(in 3.3ns bins)
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Fri Apr 1 00:27:27 2022, Carsten, , Settings Particle Detectors /Tests with primary beam
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All the beam settings will be given in a separate post.
We have 238U92+ centered in the ring with typically a few times 10⁷ ions.
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Thu Mar 31 22:41:35 2022, Kristian, Calibration, HV divider
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We noticed a difference in the electron cooler high voltage:
The set voltage is ~205 kV, the Ohmlabs divider measures 207 kV and the PTB200 shows a value of ~212 kV. The latter is doing some crazy jumps of up to |
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Thu Mar 31 22:19:14 2022, Kristian, DAQ, How To Start MBS
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(MBS server should be running at the LXG1297 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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Thu Mar 31 20:07:47 2022, Shahab, DAQ, Schottky Display in AP Messhütte (or anywhere else)
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[B]UPDATE: 16.05.2022[/B]
[I]Please use ATPPC029 instead of ATPPC019 for the 245 MHz Schottky
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Thu Mar 31 17:56:32 2022, Konstantin, DAQ, Photodiode test signal
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We used a signal generator to provide a 4MHz dummy-RF signal. This was divided by a factor of 2 for laser-"bunch" synchronization and by a factor of 200
for to provide the stop-tigger attached to the DAQ. With this Dummy-RF we were able to measure the relative arrival times of the laser at the photodiodes
located in the laser towers. Note that the signal of the southern photodiode arrives first. This is because the scale of the time axis is given in (10/3ns)-bins |
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Wed Mar 23 16:16:42 2022, V. Hannen, Detectors, Control software for XUV and copper mirror detector
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Attached you find a manual for the software used to control the movement of the XUV detector and the copper mirror detector.
The software is also used to set the electrode voltages and coil currents of the XUV detector. |
 Thu Mar 31 15:53:50 2022, Konstantin, Detectors, Control software for XUV and copper mirror detector
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> Attached you find a manual for the software used to control the movement of the XUV detector and the copper mirror detector.
> The software is also used to set the electrode voltages and coil currents of the XUV detector.
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Thu Mar 31 13:28:17 2022, Jan Glorius, DAQ, DAQ-2 cabling docu
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| newest version V2 - valid since Mo 04.April 2022 |
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Thu Mar 31 11:49:54 2022, Konstantin, Detectors, HV-Supply of particle detectors
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We cross-checked the cabeling of the particle detectors north and south. Particle detector south is connected to channel [B]HV5[/B] at the yellow "ESR Messplatz
III" patch-panel. Particle detector north is connected to channel [B]K5[/B] at the green "ESR Messplatz II" patch-panel. Red high voltage power-supply
is used to control the voltage. |
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Wed Mar 30 09:27:15 2022, Rodolfo, Accelerator, Issue? Scrapers at E-Cooler
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Carsten* forwarded me an E-Mail from Markus yesterday. "Betreff: Scraper im ESR Elektronenkühler"
- Markus has tried to get moving the scrapers at E-Cooler last week. But he got some issues.
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Tue Mar 29 21:37:13 2022, Rodolfo, Laser, Pump Laser
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The gold "reflectors and end plates" of our pump laser (Quanta-Ray PRO) have been exchanged by new ones.
- Output power after Oscillator and Amplifier (@ 1064 nm): 41 W.
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Tue Mar 29 12:47:26 2022, Ken Ueberholz, , Parameter setting for XUV and copper mirror detector
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Some Default Settings for the XUV
Detector. The copper
mirror should always move fully in.
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Tue Mar 29 12:01:08 2022, Rodolfo, Laser, Laser targets
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I have installed two targets* (size: 2 inches) to monitor the position of the laser beam.
- The internet cameras can be accessed from any browser, but only inside the GSI-Campus network. Benutzername: admin. Kennwort: 1234
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Fri Mar 25 14:31:24 2022, Rodolfo, Laser, Photodiode signal SO in the Messhütte
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Measured at the Panel "Messhütte - Laserhütte", BNC "Fast PD / SO".
- Average over 256 samples |
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Thu Mar 24 17:10:33 2022, Carsten, DAQ, DAQ / MBS VUPROM TDC buffer errors
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VUPROM TDC buffer errors potentially due to long TDC common Stop gate (>1ms from div 200).
Signal piped through coinc. unit gicv es shorter sginal (~200ns). This signal used as common stop seems to have cured the TDC buffer errors.. |
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Thu Mar 24 16:59:35 2022, Rodolfo, Laser, Photodiode signal SO
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Fast Photodiode signal at the "SO-Bogen" (South-east arc).
- Average made over 250 samples.
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