HOME ESR EXPERIMENTS LABS etc
E121 E127 E132 E125 E143 laser_cooling_2021 E142 Ê128 E146 E0052 E0018 E0028 E0038
  Nuclear hyperfine mixing in 229Th89+, Page 6 of 12  Not logged in ELOG logo
New entries since:Thu Jan 1 01:00:00 1970
Entry  Thu Apr 7 11:11:31 2022, Max, Sebastian, Laser, dye changed, pulse energy measurements 
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.
Entry  Thu Apr 7 10:10:31 2022, Ragan, Yuri, Danyal, Accelerator, Problem in UNILAC 
The power supply of the UNILAC magnet is broken. The repair will take up to 6-7 hours.
Entry  Thu Apr 7 09:58:55 2022, Ragan, Yuri, Danyal, Accelerator, Kicker problem solved 
The kicker problem is solved and the beam is back in the ESR.
Entry  Thu Apr 7 09:23:18 2022, Sebastian, DAQ, DAQ1 & DAQ2 - 1kHz and delayed cs removed 
Questionable 1kHz and delayed common stop signals has been removed.

These two cablings were for some previous tests.
Entry  Thu Apr 7 08:43:19 2022, Danyal, Yuri, Ragan, Accelerator, again no injection in ESR - ESR kicker problem 
we had no injections in the ESR again 

it turned out that the injection kicker of the ESR has a problem 
Entry  Thu Apr 7 08:14:03 2022, Yuri & Danyal, General, 229Th89+ line in Schottky  
GLOBAL calculations for the "content" of the Th line in the Schottky spectrum
(380 MeV/u exit energy, equilibrium charge state distribution)
Entry  Thu Apr 7 07:40:09 2022, Danyal, Max, Sebastian, DAQ, No beam and DAQs crashed 
since shortly after 7 AM we have no beam in the ESR
(reason unclear) 
Entry  Thu Apr 7 05:55:17 2022, Ken Ueberholz, Detectors, XUV-Detector Mesytec crash 
When the XUV-detector has to shut down unexpectedly, it can happen that the Mesytek power supply crashes and can't be 
communicated with. If this happens the Mesytec PS needs to be restarted from hand inside of the ESR. This can be done by 
restarting the crate located at the bottom of the XUV-detector. 
Entry  Thu Apr 7 05:44:40 2022, Pierre-Michel, Ragan, DAQ, NTCAP settings 
Carrier Frequency: 244M
IQ Rate: 10M
reference Level: -30
Entry  Thu Apr 7 05:23:50 2022, Patrick, DAQ, How To Start MBS for DAQ2 (Carstens DAQ) 
(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
Entry  Thu Apr 7 04:48:58 2022, , , ToDo's for 07.04. 
Some ToDo's for the next shift:
- Work on  Laser stabilisation 2nd stage in the ESR
- Mesytec power supply of the xuv-detector crashed and needs to be restarted in the ESR. Simply turning it the crate off and on again)!!
Entry  Thu Apr 7 04:10:18 2022, Ken Ueberholz, DAQ, Corrected cabling DAQ 2 20220407_043337.jpg
A lot of cables were wrongly or not 
connected to the DAQ 2. 
Entry  Thu Apr 7 03:44:21 2022, Patrick, DAQ, Measurement procedure 
[U][B]Measurement procedure[/B][/U]

Entry  Thu Apr 7 03:09:36 2022, Carsten, DAQ, NTCAP running since 02:40 
 
Entry  Thu Apr 7 03:06:15 2022, Patrick, DAQ, DAQ file sizes 
The file sizes of DAQ1 (229Thor) and DAQ2 (229Th, "Carstens DAQ") are different.
During 20min of laser scanning DAQ1 saves 4 files while DAQ2 saves 2 files which was 3.3 GB and 2 GB, respecively.
[B]The file sizes of DAQ2 should always be greater than those of DAQ1, because of extra ADC data![/B]
Entry  Thu Apr 7 02:32:29 2022, all on shift, Runs, First Scans 322-320nm 
Laser scanning from 322-320 steps 0.01nm/s
DAQ1: lxg1927:/data.local2/BeamTimeTh22/
DAQ2: lxg0155:/data.local2/E142/
Entry  Thu Apr 7 01:19:05 2022, Patrick, Laser, Laser scanning 2022-04-07_Wavemeter_during_scan.png2022-04-07_Wavemeter_during_scan2.png2022-04-07_Wavemeter_during_scan3.png2022-04-07_Wavemeter_during_scan4.png
We did some laser scans. The wavemeter shows spikes during scans. This may be just while the frequency changes. See picture.
Entry  Thu Apr 7 00:36:36 2022, Uwe, DAQ, Threshholds and shaping Mesytec for ADC snapshot3.png
 
Entry  Thu Apr 7 00:15:11 2022, Patrick, Laser, Laser timing adjusted 220407-Laser-ion-timing.png220407-Laser-ion-timing-full-period.png220407-ParDetSO_PMT-middle.png
We have adjusted the laser timing using PMT-middle. Bunching freq. is 3.90362 MHz.

PD NO: 7.79
Entry  Wed Apr 6 22:29:55 2022, Patrick, Accelerator, ECooler voltages 
ECooler voltages:

[B]06.04:[/B]
ELOG V3.1.5-fc6679b