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Laser Cooling Experiment 2021, Page 1 of 5
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ID
Date
Author
Category
Subject
Text
1
Mon May 10 07:58:13 2021
Danyal
General
Telephone numbers and Zoom link
Telephone numbers:
ESR laser lab: +49 (0)6159 71 - 2882
2
Tue May 11 15:49:30 2021
Danyal
General
setting up ESR
The operators are still busy extracting the
beam from the SIS18 towards the ESR and injecting
it into the ESR.
3
Tue May 11 16:07:59 2021
Sebastian
DAQ
DAQ Manual
Attached you'll find a short manual for operating
the whole DAQ system
4
Tue May 11 16:33:31 2021
Ken Ueberholz
Detectors
Detector control manual
Attached to this elog entry is a short manual
for the xuv-detector control. If anything
is missing or not understandable I can change
5
Tue May 11 18:29:35 2021
Danyal
General
first ions in the ESR
6
Tue May 11 20:14:43 2021
Danyal
General
bad ESR vacuum
I just heard that the ESR vacuum is quite
bad.
There was a small vacuum problem a while
Draft
Wed May 12 02:16:25 2021
Danyal, Lars
Accelerator
Ion beam position
Laser Position with scrapers verified.
1HA: impossible to scratch laser beam, still
there at -1.0 mm
8
Wed May 12 02:34:29 2021
Danyal
General
instabilities in ion frequency
The ion beam moves around, pretty arbitrary.
See picture.
ESR crew believes that it is not due to fluctuations
10
Wed May 12 08:10:17 2021
Lars
General
instabilities in ion frequency
looks like the E-Cooler is responsible for
this. If one turns off the electron current,
the beam stays stable.
11
Wed May 12 08:32:04 2021
Sebastian
Analysis
fluorescence & energetic overlap
During the night shift we saw several rises
of the fluorescence (see another entry) and
also energetic overlap in coasting beam modus.
12
Wed May 12 08:41:36 2021
Sebastian
Analysis
Laser stability
During night shift the laser was very stable!
Only minor fluctuations occured in the UV
13
Wed May 12 08:42:49 2021
Sebastian
Analysis
Laser scans / coastig beam / no ecooler
Attached you'll see a first laser scan of
~100GHz in the UV.
14
Wed May 12 09:04:48 2021
Sebastian
DAQ
Keysight AUtoCal
Draft
Wed May 12 09:05:48 2021
Keysight Settings
DAQ
16
Wed May 12 09:09:15 2021
Sebastian
DAQ
Fluorescence
fluorescence with detector in parking position
fixed laser wavelength
electron cooling ON,
17
Wed May 12 09:59:08 2021
Benedikt
General
Rigol DSG821 signal generator settings
18
Wed May 12 10:14:18 2021
Lars
Accelerator
E-Cooler
M.Steck et al. discussed about the E-Cooler
and found a possible issue. They asked for
enterance to the ESR. Since nobody else was
19
Wed May 12 10:15:47 2021
Volker Hannen
DAQ
Unplugged TDC inputs for MCP front and back
To reduce the load on the VUPROM TDC, we unplugged
the TDC inputs for the front and back signals
of the MCP of the XUV detector.
20
Wed May 12 13:11:58 2021
Danyal
Accelerator
short break between 13:30 and 15:30
There will be a short break (2 hours) this
afternoon. Between 13:30 and 15:30.
The so-calles "super lense" in the UNILAC
21
Wed May 12 15:36:04 2021
Danyal
Accelerator
general power failure in ESR! (everything is off)
The power in the ESR is off.
(also on the gas-target area on top of ESR)
Electrical engineers are trying to find and
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