 Sun Jun 2 00:01:46 2024, Carsten, DAQ, 25ps TDC CAEN V1290N DAQ2 lead to crash in DAQ2 due to a hardware issue
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On the CAEN V1290N TDC the piggy board for the lower 8 channels is not fixed well to the motherboard.
That prevented to the whole DAQ2 to trigger correctly or even crash every once in a while. Long attempt sot find the error in hard and in software.
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Sat Jun 1 19:19:07 2024, Carsten, Detectors, Reminder: Check signals in scope and in DAQ of detectors with voltages switched off (vs. CFD threshold)
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When the ion pumps and vacuum gauges are switched off the scaler data of
PMT_south, PMT_middle, PMT_north, PD_NO, PD_SO, PartDet North, PartDet South and (Channeltron) should be checked without voltages applied in dependence
on the CFD thresholds to determine the "cable noise level" at which thre are NO entries other than 0 in hte spectra (minimum background).
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Sat Jun 1 19:00:57 2024, Carsten, DAQ, Change of (offline) frequency for common stop (CS) of VUPROMs (and 2nd TDC) and scaling factor
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Temporarily, for tests of the second DAQ I changed the frequency from the frequency generator and scaling factor that is used for the common stop signal
to a value that is close to the expected value in the experiment.
Reason: For the second TDC (CAEN 25ps) TDC the time between to CS events must be of the order of 45 us. The TDC can store events up to about 51,x us and |
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Sat Jun 1 18:55:18 2024, Carsten, Analysis, Go4 Analysis Version for DAQ1 (atplaser)
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Small enhancements and minor corrections / bug fixes are made to the original version of the online GO$ for DAQ1.
Assignment of channel names corrected, condition names adapted to present DAQ
Potential pitfalls are commented in the code.
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Sat Jun 1 18:14:01 2024, Carsten, Analysis, DAQ and analysis directories
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[U][B]DAQ1 (original):[/B][/U]
-user atplaser
-runs on lxg1297
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Sat Jun 1 18:00:20 2024, Carsten, DAQ, ReadOut Trigger im Timer Scaler changed because of faulty signal from frequency generator 
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Old readout trigger (~200 Hz) in 1MHz Scaler showed two nearby peaks indicating a jitter of the readout frequency or same faulty output driver of the frequency
generator Metrix GX240 used to produce the readout frequency (see below).
[IMG]elog:9/1[/IMG]
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Fri May 31 16:49:52 2024, Carsten, DAQ, Wiring DAQ 1
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Started to Check the wiring.
Status as of 2024-05-31
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Fri May 31 15:53:06 2024, Ruijiu Chen, DAQ, run NTCAP system
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NTCAP is working again.
Connect the RF cable and the scaler cables to NTCAP system.
The map of signal is recorded in following link.
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Wed May 29 10:54:21 2024, Shahab, Jan, General, Gas Target Events with new timing system
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Using the new timing system, it is possible to grab any events as pulses, but also as long inter event gates under GENESYS. Many instances of GENESYS can
be running on ACO computers, so that there is no conflict, if an instance is running in main control room or another in ESR-Messhütte.
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Wed May 29 09:49:30 2024, Rodolfo, Laser, Laser-beam profile
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Using a telescope (Plan-concave lens -500 mm and Plan-convex lens +1000 mm) after the pulsed-dye laser system we got the following laser-beam profile at
the Electron-Cooler's position. Dye Laser @ 550 nm / 275 nm |
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Mon May 27 13:37:31 2024, Jan, DAQ, MesyTec Shaper Control
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For the 2nd DAQ the MesyTec Shaper ([URL=https://elog.gsi.de/esr/NucAR+lab/230418_110112/MesyTec_MSCF16-F-V.pdf]MSCF manual[/URL]) is used as a spectroscopy
amplifier and CFD.
It is controlled via the MesyControlGUI, which is installed on SADPC055 with a USB->mesyBUS connection to the MSCF.
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Thu Apr 25 16:34:05 2024, Rodolfo, Laser, Efficiency of Fluorescein27
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The figure below shows the efficiency of Fluorescein27 vs. Wavelength. Each point was averaged over 500 laser shots.
Dye Laser: Sirah, Cobra Strech.
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Tue Apr 16 16:28:21 2024, Danyal, General, Great
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| Thanks Jan! |
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Tue Apr 16 14:42:37 2024, Jan, General, G-PAC Proposal
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