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Laser Cooling Experiment 2021, Page 2 of 5
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ID
Date
Author
Category
Subject
Text
30
Thu May 13 00:58:53 2021
Danyal
DAQ
unbunched ion beam
31
Thu May 13 01:01:27 2021
Danyal
DAQ
bunched ion beam
32
Thu May 13 01:05:45 2021
Danyal
DAQ
more stability by bunching
Because the C3+ part of the ion beam is properly
bunched, it is no longer so sensitive to
the drifts caused by the e-cooler.
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
85
Tue May 31 07:29:11 2022
Ken
Detectors
XUV-Detektor
Rate was very low: ~ 100Hz
Adjusted Walk level and Threshold, new rate:
5kHz
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.
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
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.
17
Wed May 12 09:59:08 2021
Benedikt
General
Rigol DSG821 signal generator settings
22
Wed May 12 18:59:15 2021
Ken Ueberholz
General
Power is back
Power is back and most things are running
again
23
Wed May 12 19:48:24 2021
Sebastian
General
DSG821 Network
To implement the bunch Signal Generator (DSG821
inside ESR) you have to:
24
Wed May 12 22:28:55 2021
Ken Ueberholz
General
Bunching succesfull
Bunching with 2 and 10 bunches succesfull
25
Wed May 12 22:35:33 2021
Danyal
General
frev and fb
Schottky frequency (189th harmonic) = 244.033662
MHz
26
Wed May 12 22:48:25 2021
Sebastian
General
DSG Control SCPI Commands
Open Ultra Sigma
Press LAN
Press Search, after a while the whole rigol
27
Wed May 12 22:57:41 2021
Sebastian
General
Laser Reprate
laser reprate is seven times the revoolution
frequency: 9.038283 MHz
pulse length: 735ps
29
Wed May 12 23:45:23 2021
Ken Ueberholz
General
Laser does not reach the exit window
High rates on the detector at 50mm positions,
laser does not seem to reach the exit window.
33
Thu May 13 01:13:06 2021
Sebastian
General
Bunching frequencies
relating to Danyals ID 25 post are the current
bunching frequencies:
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