 Thu Mar 17 17:56:33 2022, Kristian, Calibration, HV dividers 
|
PTB HV dividers arrived. Divider ratios are:
PT120: 12003,341
|
|
Thu Mar 31 22:41:35 2022, Kristian, Calibration, HV divider
|
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 |
|
Fri Apr 1 18:19:58 2022, Kristian, Calibration, HV divider
|
We checked the strange behavior of the HV dividers again. The Ohmlabs and the PTB divider are in good agreement at 120 kV and 150 kV. There, both dividers
deviated by 0.35% from the value on the HKR multimeter. Ohmlabs divider yields higher voltage.
|
|
Wed Mar 16 12:04:40 2022, Kristian, Detectors, HV cable to particle detector South
|
Checked HV cable to particle detector south. Label is HV2 Scraper.
Connected to Messplatz III HV5 |
|
Tue Apr 5 15:25:47 2022, Sebastian, Kristian, Pierre-Michel, DAQ, Go4 Conditions for "TDC_stacked_Sig/Ref" histogram
|
First version of TDC_stacked histograms implemented.
Under folder "Conditions" you can now integrate over user defined Limits (Xmin and Xmax). |
|
Mon Apr 4 15:32:38 2022, Kristiand & Sebastian, DAQ, Go4 Backup Code
|
Due to some code changes (PMT over wavelength historgram) Kristian and I backuped a working Go4 code in the current go4 folder on the atplaser linux account.
It can be found in the subfolder "working go4 code 4.4.2020"
|
|
Sun Apr 3 12:35:17 2022, Max, DAQ, Go 4 manual
|
How to start go4?:
- go to console
|
|
Mon Apr 4 00:19:16 2022, Ken Ueberholz, DAQ, FirstTests
|
New measurement:
Start: About 00:12
Stop: About 00:43
|
|
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/
|
|
Fri Apr 8 17:44:25 2022, Konstantin, Calibration, Final Timing
|
We measured the timing for the laser bunch synchronization. A summary is given below.
[TABLE border="1"]
|
|
Sun Apr 10 15:29:37 2022, Carsten,Sarper, Accelerator, Ecooler failed
|
Ecooler failed @15:23 Carsten is fixing it
Fixed @16:00 |
|
Sat Apr 2 15:54:32 2022, Carsten, Accelerator, ESR setup with primary beam and 1cm Be plate + Schottky data on NTCAP
|
MArkus and Bernd have setup the ESR with the thick stripper foil and put the ion beam (238U92+) on the central orbit.
SIS Energy is 536 MeV/u
|
|
Wed Apr 6 16:01:07 2022, BL, Accelerator, ESR settings before adjusting laser: 2022-04-06_14-37-30_ESR_EXP22_02_238U92_Brandau_30March22.C1.txt
|
# Version: 1.2
# Comment: ParamModi Export at 2022-04-06T14:37:35.957978+02:00[Europe/Berlin]
# Context: ESR_EXP22_02_238U92_Brandau_30March22.C1
|
|
Wed Apr 6 09:30:53 2022, Danyal, Accelerator, ESR is blue again - errors are fixed
|
The ESR is "blue" again.
The errors (scu related) have been fixed.
|
|
Wed Apr 6 08:31:54 2022, Danyal & Regina, General, ESR had some errors
|
Regina noticed that the ESR was "red"
This means that there are some errors.
|
|
Fri Apr 1 02:29:40 2022, Carsten, , ESR Cooler crashed
|
| ESR cooler crashed. We could not restart the cooler. Since we had several other problems, we stop now. |
|
Wed Apr 6 22:29:55 2022, Patrick, Accelerator, ECooler voltages
|
ECooler voltages:
[B]06.04:[/B]
|
|
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 screenshot, to produce
the status "laser busy" for the DAQ.
|
|
Thu Mar 3 21:39:21 2022, Rodolfo, Laser, Dye solution, DCM in Ethanol and DMSO
|
I have prepared a new dye solution of DCM in Ethanol and DMSO (1:1). The concentration of the "oscillator + preamplifier" is 0,3 g/l. The concentration
of the "main amplifier" is 0,0375 g/l or "1/8" the concentration of the "oscillator".
|
|
Fri Apr 15 20:43:18 2022, Konstantin, Laser, Dye changed
|
| Dye of the laser system has been changed. UV laser power increased from ~8 mJ to 11 mJ pulse energy. |