ELOG E142

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Nuclear hyperfine mixing in 229Th89+, Page 6 of 12

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Thu Jan 1 01:00:00 1970

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ID	Date	Author	Category	Subject	Text
150	Fri Apr 8 05:46:35 2022	V. Hannen	Detectors	High background rate in Cu PMT points to light leak in ESR or active pressure gauge	The background rate of the Cu mirror PMT is only about 300 cps when the mirror is in the parking position but ca. 7000 cps when
165	Fri Apr 8 14:46:02 2022	Danyal & Sebastian & Volker & Ken	Detectors	high dark countrate Cu PMT solved	The problem - "discovered" by Volker and Ken - of the high dark countrate of the Cu PMT has been solved.
191	Sun Apr 10 03:56:56 2022	V. Hannen	Detectors	Low rate in PMT South	PMT south shows a much lower count rate than observed in elog entry 170.
217	Tue Apr 12 13:24:40 2022	Alexandre, Sebastian	Detectors	Sideband in Schottky	Sometimes we see a broad sideband at lesser schottky frequencies to the high intensity thorium beam.
218	Tue Apr 12 14:11:52 2022	Ragan	Detectors	Sideband in Schottky	> Sometimes we see a broad sideband at lesser Schottky frequencies to the high-intensity thorium beam.
219	Tue Apr 12 14:52:19 2022	Rodolfo	Detectors	PMT Nord, Middle. Datasheets	Attached are the datasheets for the solar-blind PMTs.
221	Tue Apr 12 17:01:30 2022	Konstantin	Detectors	Voltage PMT North	Voltage of PMT North has been increased from 2500 V to 2600 V. Additionally the threshold was adapted from 25 mV to 12 mV.
228	Thu Apr 14 12:27:18 2022	Sebastian, Max	Detectors	Connection to XUV / Cu reestablished!	The connection to the XUV and Cu were lost during the nightshift.
229	Thu Apr 14 12:38:38 2022	Sebastian	Detectors	XUV / Cu checkups	Check regularly if the connection to the XUV and Cu detectors are still active and the detectors move in (after injection) and out
5	Fri Aug 6 10:23:00 2021	Rodolfo	DAQ	atplaser on r4l-41	The user [B]atplaser[/B] is now existing on the [B]R4L-XY[/B] nodes for the ESR group.
6	Fri Aug 6 10:40:54 2021	Rodolfo	DAQ	mbs in atplaser	The "MBS program" (data acquisition) is now located within atplaser@r4l-41, in the folder "th21":
9	Fri Nov 5 17:23:23 2021	Rodolfo	DAQ	Dye trigger out	The dye laser offers different scan settings (see pages 65 - 67 of the user manual). We are using the following setting, see attached
15	Thu Mar 10 15:20:26 2022	Jan	DAQ	analog branch signal patches to Messhütte	The additional signals from PMTs and XUV detector needed for spectroscopic analysis in the second DAQ are patched to AP Messhütte (MH)
16	Wed Mar 16 08:31:52 2022	Kristian	DAQ	Check cables and timing	Konstantin and I generated a signal in the Messhütte and sent it to the ESR. There, we used a 44m BNC cable that was sufficently
21	Fri Mar 18 16:51:27 2022	Carsten	DAQ	Main DAQ /MBS error	MBS error "TDC data ready wait" solved. Common stop trigger (20 kHz) was missing. (according to Sebastian)
24	Mon Mar 21 10:46:18 2022	Rodolfo	DAQ	TDC & Scaler description channels	For the First Vuprom we have the following channel configuration (Stand:21.03.2021).
25	Mon Mar 21 16:33:23 2022		DAQ	Changing code of go4	We agreed to indicate changes in the go4 analysis code according to the following scheme
26	Mon Mar 21 17:03:47 2022		DAQ	Changing code of go4	Correction: Comments in C/C++ start with // , i.e. forward slash
27	Mon Mar 21 21:48:46 2022	Jan	DAQ	MesyTec Shaper Control	The MesyTec Shaper & Constant Fraction (MSCF) is used to process the PMT/det signals for the ADC in the second DAQ.
32	Thu Mar 24 13:27:47 2022	Rodolfo	DAQ	Disk space - LXG1297	In our Linux computer (LXG1297: Laser spectroscopy) we have a Drive with 1.8 TB total disk space. 300 GB are at the moment in use, but I can

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