| ID |
Date |
Author |
Category |
Subject |
Text |
 |
|
Draft
|
Fri Jun 27 14:23:39 2025 |
Nils, Wilfried, Julian | Runs | Runs afternoon shift 27.06. | 15:30 We have a break due to an issue at UNILAC
(quadrupole failed). Also radiation safety
interlock was triggered at the fragment separator. |
|
|
67
|
Fri Jun 27 11:21:25 2025 |
Esther, Konstantin | DAQ | Timing | We cross-checked the timing. Laser pulse is
detected at bins 136 (PD-North) and 171 (PD-south),
respectively. Therefore, the laser puls is |
|
|
66
|
Fri Jun 27 06:55:45 2025 |
Esther. Konstantin | Laser | Laser-ion overlap | We cross-checked the laser-ion superposition
by using the T-scrapers. We did it only after
the scans in order to do not change the duty |
|
|
Draft
|
Fri Jun 27 06:13:02 2025 |
Esther, Konstantin | Runs | Early shift - data taking | [B]Notes:[/B]
1. TE slits at -10 and +10
2. SIS intensity unstable until about 9:00 |
|
|
64
|
Thu Jun 26 22:51:04 2025 |
Hendrik, Finn | Runs | Nightshift data runs | After the scan at 22:04 teh FCU new was new
calibrated. For this MEdusa was stopped and
reopened in the laser lab. This stops the |
|
|
63
|
Thu Jun 26 21:27:34 2025 |
Carsten, Jan, Simon | Calibration | Timing | We checked the timing (before the start of
the measurement cycle documented below).
Timing and measurement window are attached. |
|
|
62
|
Thu Jun 26 19:01:46 2025 |
Carsten, Jan, Simon | Runs | Late shift 26.06. |
[B] Scan parameters:[/B]
[TABLE border="1"]
|
|
|
61
|
Thu Jun 26 18:13:17 2025 |
Jan, Carsten | Detectors | PMT voltages & thresholds | current settings of PMT voltages and thresholds
at the CAEN CFD:
|
|
|
60
|
Wed Jun 25 05:53:54 2025 |
Rodolfo | Laser | FCU | Cobra's FCU was recalibrated. Table saved
as FCU_547-554_RS_2024-06-25.fcu. |
|
|
59
|
Tue Jun 24 22:24:36 2025 |
Carsten, Finn, Hiroshi, Esther, Rodolfo | Runs | Data taking (night shift 24.06.) |
[B] Scan parameters:[/B]
[TABLE border="1"]
|
|
|
58
|
Tue Jun 24 18:49:18 2025 |
Carsten, Rima, Nils, Simon | Runs | Second attempt (Late shift 24.06.) |
[B] Scan parameters:[/B]
[TABLE border="1"]
|
|
|
57
|
Tue Jun 24 17:39:13 2025 |
Carsten, Stefan, Simon, Rima, Nils | Detectors | PMT behaviour - noise / PMT voltages / CFD Threshholds / CAEN Power supply (broken channel resetted) | PMT North and South have been changed:
CFD CH0: Middle Thr 7 / CAEN HV Ch1: 2750 |
|
|
56
|
Tue Jun 24 15:44:06 2025 |
Konstantin | DAQ | Phase shift in DAQ1 | In the SetParameters.C file is a parameter
called fPar->piPhaseOffset. It was shifted
from 100 to 50 in order to see ion bunches |
|
|
55
|
Tue Jun 24 12:25:34 2025 |
Carsten | Detectors | PMT behaviour - noise / PMT voltages / CFD Threshholds / CAEN Power supply (broken channel resetted) | In position North there is still the "old"
9423B PMT that draws quite some current.
On this detector threre is also some quite |
|
|
54
|
Mon Jun 23 18:36:39 2025 |
Wilfried, Simon | Detectors | PMT test with LED | We tested the PMTs again, this time with an
UV LED that is mounted at a window close
to the XUV detector.
|
|
|
53
|
Mon Jun 23 10:59:36 2025 |
Julian, Lukas, Zsolt, Nadine, Konstantin | Runs | Scan routine | -Start new injection
->wait for 60 injections to be complete
->note down SIS intensity (at extraction)
|
|
|
51
|
Mon Jun 23 10:52:34 2025 |
Julian, Lukas, Zsolt, Nadine, Konstantin | Laser | Frequency conversion unit | We exchanged the old BBO of the Cobra's FCU
with a new one. The output power of the Cobra
was around 120mJ. In the end, we achieved |
|
|
50
|
Mon Jun 23 01:01:17 2025 |
Carsten | Detectors | CAEN PMT Power supply | Since yesterday, channel 0 of the CAEN PS
is dead (no voltage even without cable).
Changed detector south to channel 3. |
|
|
Draft
|
Sun Jun 22 23:48:35 2025 |
Carsten | Accelerator | Summary of todays settings and tests | Scraping, beam intesnity optimizations and
nuching were set up and optimized during
the day.
|
|
|
47
|
Sun Jun 22 22:29:04 2025 |
Carsten | Accelerator | Backup copy of present accelerator settings - don't use if you don't know what you are doing | # Version: 1.3
# Comment: ParamModi Export at 2025-06-22T22:28:05.633712878+02:00[Europe/Berlin]
# Context: ESR_25_12_THORIUM_20June_v3.C1
|
|
|
46
|
Sun Jun 22 21:36:48 2025 |
Carsten, Finn, Zac, Esther | Runs | First laser scans |
[B] Scan parameters:[/B]
[TABLE border="1"]
|
|
|
45
|
Sun Jun 22 18:47:23 2025 |
Carsten, Peter, Marek, Simon | DAQ | PMT and particle detector settings | Final voltages and thresholds for the PMTs
and particle detectors before the first scan:
|
|
|
Draft
|
Sun Jun 22 11:31:59 2025 |
Arya, Carsten, Julien, Konstantin | General | Summary morning shift | 1. UNILAC running again, so we resumed the
beam tuning wherre we stopped yesterday at
14:00
|
|
|
43
|
Sat Jun 21 22:33:04 2025 |
Peter , Danyal | Detectors | PMTs are switched off | We have switched off all 3 PMTs ! |
|
|
42
|
Sat Jun 21 21:55:18 2025 |
Peter, Danyal, Marek | Detectors | PMT rates | We have made two foam rings (outer diameter
ca. 70 mm with a thickness of 10 mm each
and placed them successively underneath PMT |
|
|
41
|
Sat Jun 21 18:00:49 2025 |
Carsten, Peter, Danyal, Kristian, Marek | Detectors | PMT signals | Carsten and Kristian changed (18:00) the thresholds
of PMT north and PMT middle in the ESR cave.
|
|
|
40
|
Sat Jun 21 17:00:10 2025 |
Carsten, Peter, Danyal, Kristian, Marek | Detectors | PMT north exchanged | We noted that the dark countrate of PMT north
is about 20x higher than that of PMT middle.
|
|
|
39
|
Sat Jun 21 11:42:50 2025 |
Arya, Julien, Wilfried | General | Test laser scan | Test scan to see whether laser spot is moving
while scanning
|
|
|
38
|
Sat Jun 21 08:48:16 2025 |
Arya, Julien, Wilfried | Accelerator | Low 229Th particle numbers and 229Th lifetime in ring | With reference to entry 37 Laser timing:
- at last 30 injections accumulation: 10k |
|
|
37
|
Sat Jun 21 07:28:35 2025 |
Arya, Julien, Wilfried | Laser | Laser Timing | We roughly adjusted the timing based on attachment
1, for ions to be in center of electron cooler
(east arc), corrected for PMTs being 2.5m |
|
|
36
|
Sat Jun 21 03:13:02 2025 |
Alex, Anton, Rodolfo, Hiroshi | Detectors | Part Det South | Bunch signal on Particle Detector South. On
the
|
|
|
35
|
Sat Jun 21 03:06:19 2025 |
Rodolfo, Alex, Hiroshi, Anton | Laser | beam overlap with t-scrapers | [TABLE border="1"]
motor|ion beam position (mm) from outside|ion
beam position (mm) from inside
|
|
|
34
|
Sat Jun 21 02:32:24 2025 |
Alex, Anton, Rodolfo, Hiroshi, Carsten | Laser | Laser scanning setting | This is the initial scanning range
[LIST]
[*] 3 Loops
|
|
|
33
|
Sat Jun 21 01:40:31 2025 |
Carsten, Alex, Anton, Rodolfo, Hiroshi | Accelerator | beam parameters | The revolution frequency for the measurement
condition is: 1.542728 MHz.
The electron cooler voltage is: 104411 V. |
|
|
32
|
Sat Jun 21 00:52:07 2025 |
Carsten | Accelerator | Summary of the last days (bunches wiht several isotopes still in ) / frequency of the | Initially, we has very low SIS beam intensities
in the 1e8 region. Setting up ESR wiht Stacking
etc. turned out to be extremly tedious for |
|
|
31
|
Sat Jun 21 00:23:22 2025 |
Rodolfo | Laser | Dye | I have prepared new (fresh) dye solutions
of Fluorescein 27: 2 charges. They are in
the Safety Cabinet (Sicherheitsschrank) in |
|
|
30
|
Fri Jun 20 15:58:21 2025 |
Wilfried, Konstantin, Simon | Laser | Laser stepwidth | From previous Bi-Beamtimes, we expect the
width of the transition to be >50GHz (FWHM).
The current step width is 0.002nm which corresponds |
|
|
29
|
Fri Jun 20 11:25:32 2025 |
Julien, Kristian, Konstantin | Laser | Automated laser scans | In contrast to entry [URL=https://elog.gsi.de/esr/E0052_2025/12]E12[/URL],
the cabling for the automated start of the
laser scan is now connected to [B]IO3 of |
|
|
28
|
Fri Jun 20 06:37:51 2025 |
Konstantin | Accelerator | Position of contaminants | I checked the positions of the contaminants.
Therefore, I drove the scrapers and observed
the signal at the Schottky detector
|
|
|
27
|
Wed Jun 18 20:24:01 2025 |
Carsten, Shahab, Ragandeep, Danyal et al. (the dayshift) and ESR crew | Accelerator | 229Th89+ identification | We believe to have identified the 237U92+
and the 229Th89+ peaks.
|
|
|
26
|
Wed Jun 18 19:05:28 2025 |
Carlo, Zac, Shahab, Ragan | Analysis | PID with rionid | For PID with rionid we used:
- LISE file from last year (attached.
- .npz file from 410 RSA (attached). |
|
|
25
|
Wed Jun 18 14:01:40 2025 |
Julien, Konstantin, Stefan, Rima | | Ion bunch on PMTs | Apparentlty did not work yesterday evening
(no signal), but looks fine now (see attachment) |
|
|
24
|
Wed Jun 18 11:44:15 2025 |
Julien, Konstantin, Stefan, Rima | | Jitter CFD | Pulses on photodiodes in entry 20
1. seem wide, so we also looked at qswitch |
|
|
23
|
Wed Jun 18 08:07:17 2025 |
Julien, Konstantin | Laser | new FCU Calibration | UV power was not stable but dropping from
~18 mW to 13 mW after opening COBRA shutters.
New calibration of frequency conversion unit:
|
|
|
22
|
Wed Jun 18 07:59:00 2025 |
Julien, Konstantin | Laser | Phase-offset | We recognized that the output power of the
pump laser was instable when externally triggered
with 200kHz (stand-bye frequency of ESR). |
|
|
21
|
Wed Jun 18 03:12:25 2025 |
Rodolfo | Laser | Beam Stabilization | The laser beam pointing has changed, even
thought the MRC settings are the same as
given in Entry 5 (this elog). This could |
|
|
20
|
Wed Jun 18 01:58:02 2025 |
Esther, Alexis, Anton, Rodolfo, Carsten | Accelerator | No Bunched Beam | The Bunching is not set properly. We do not
see the ion bunch with the Photomultiplier. |
|
|
19
|
Wed Jun 18 00:56:28 2025 |
Carsten, Rodolfo, Anton, Alexis, Esther | | beam overlap with t-scrapers | When testing the overlap between laser and
ion beam we observed the following positions:
|
|
|
18
|
Wed Jun 18 00:33:56 2025 |
Esther, Alexis, Anton, Rodolfo, Carsten | DAQ | R4l-41 | We have some issues with the RIO computer
R4l-41 (DAQ1). We had to switch off completely
twice. Only then it reacted properly. Maybe |
|
|
17
|
Tue Jun 17 19:25:30 2025 |
Rodolfo | Accelerator | T-Scrapers in E-Cooler | Here are the instructions to drive the T-Scrapers
inside the ESR Electron Cooler
|
|
|
16
|
Tue Jun 17 16:33:16 2025 |
Carsten, Simon | DAQ | Gate Q-swtich | The gate generator of the Q-switch signal
for the Vuprom TDC was set to 10ms. |
|
|
15
|
Tue Jun 17 09:32:00 2025 |
Konstantin | DAQ | Meda data acquisition | The metadata provided by Medusa (Labview channels
in former times) are now labelled correctly
in Go4.
|
|
|
14
|
Mon Jun 16 22:27:01 2025 |
Carsten, Simon | DAQ | Thresholds | We also adjusted the thresholds for the mesytic.
Doing that, we noticed that one of the trafos
is broken (5th row, middle).
|
|
|
13
|
Mon Jun 16 21:47:23 2025 |
Carsten, Wilfried, Simon | Detectors | New threshold values for PMTs | We adjusted the thresholds for the PMTs and
increased the voltage of PMT middle to 2.7kV
|
|
|
12
|
Mon Jun 16 07:26:01 2025 |
Konstantin | DAQ | Startup of Medusa and DAQ1 | The laser control software (Medusa) is hosted
on the Windows PC ATPPC023. First connect
via the command
|
|
|
11
|
Fri Jun 13 18:14:02 2025 |
Konstantin, Carsten | DAQ | DAQ Folder | Dryrun of DAQs. Folders of the data are:
|
|
|
10
|
Thu Jun 12 16:27:45 2025 |
Carsten | DAQ | NTCAP directory | On the NTCAP the directory is changed to
Q:/E0052 |
|
|
9
|
Thu Jun 12 15:53:13 2025 |
Carsten | DAQ | data directory and backup disk (WDBook2 RAID) | The data of DAQ1 are stored in the following
directory and with the following filenames
|
|
|
8
|
Wed Jun 11 17:33:04 2025 |
Carsten, Jan | DAQ | DAQ2 - new computer , new directories (lxg0155 doesn't work reliably) | LXG0155 (used in form er beamtimes) crashes
and hangs and hangs eventually.
|
|
|
7
|
Wed Jun 11 16:44:39 2025 |
Carsten, Jan | Detectors | Detector voltages and thresholds for DAQ2 (Mesycontrol) | Voltages (2650v) for the small band 9423 is
ok. Signals are nicely separated from background,
thresholds can be easily set.
|
|
|
6
|
Wed Jun 11 11:20:23 2025 |
Konstantin, Simon | DAQ | octal gate generator delays | We checked the set delays of the OG 8000 octal
gate generator and compared them with the
values measured before the Bi-beamtime (see |
|
|
5
|
Fri Jun 6 14:27:10 2025 |
Rodolfo, Konstantin | Laser | MRC Beam Stabilization Presettings | These are the settings for the Beam Stabilization
from MRC.
|
|
|
4
|
Wed Jun 4 16:18:57 2025 |
Rodolfo, Simon | Detectors | PMT dark count rates | I adjusted the offsets of the amplifiers in
the cave and measured the dark count rates
:
|
|
|
3
|
Wed Jun 4 16:17:47 2025 |
Simon | Detectors | Nitrogen | The nitrogen supply for the PMTs is turned
[B]ON[/B]. |
|
|
2
|
Mon Jun 2 16:36:57 2025 |
Carsten | Detectors | Mesycontrol | ssh -Y litv-exp@x86l-204
'mesycontrol' |
|
|
1
|
Tue May 20 16:14:30 2025 |
Rodolfo, Simon | Detectors | PMT arrangement at ESR | This is the arrangement of the photomultipiers
at the optical detection region at ESR for
Thorium 2025
|
|