| ID |
Date |
Author |
Category |
Subject |
Text |
 |
|
62
|
Thu May 12 15:21:23 2022 |
Sebastian, Simon | Laser | Flash lamps changed | We (Sebastian and I) changed the flash lamps
of the Quanta Ray Laser and measured the
output energy of the laser system afterwards |
|
|
63
|
Thu May 12 15:34:47 2022 |
Max, Kristian, Sebastian | DAQ | laser scan, laser step and laser busy checked | We checked all three signals in the Messhütte.
Laser scan and laser step are OK.
The Laser busy signal is for large increments |
|
|
64
|
Thu May 12 15:50:33 2022 |
Max | Accelerator | No ESR beam | Since 13:30 we have no beam in the ESR. There
is a problem with the ESR septum.
The magnets department is investigating. |
|
|
65
|
Thu May 12 16:35:17 2022 |
Max, Wilfried, Zoran | Accelerator | NO BEAM UNTIL TOMORROW MORNING | The problem at the ESR septum is serious.
They have to remove the broken part and try
to repair it.
|
|
|
66
|
Fri May 13 08:32:41 2022 |
Zoran | Accelerator | NO BEAM UNTIL TOMORROW MORNING | > The problem at the ESR septum is serious.
They have to remove the broken part and try
to repair it.
|
|
|
67
|
Fri May 13 11:46:51 2022 |
Sebastian, Simon | | Laser energy | We (Sebastian and I) measured the output
energy of the laser system again.
All values in [mJ] and over 500 laser-pulses |
|
|
68
|
Fri May 13 16:55:58 2022 |
Danyal, Carsten, Phillip, Wilfried | General | End of E128 Beamtime | Dear all,
unfortunately, the E128 experiment must now |
|
|
69
|
Mon May 16 14:20:05 2022 |
Ragan, Danyal, Carsten, Phillip, Wilfried et al. | General | E128 Beamtime | > Dear all,
>
> unfortunately, the E128 experiment must |
|
|
70
|
Mon May 16 15:57:37 2022 |
Rodolfo | Laser | Wavemeter calibration | I have calibrated our Wavemeter WS7 using
the temperature stabilized He-Ne Laser (SIOS
EN60 825-1:2014). In the screenshots below |
|
|
71
|
Mon May 16 17:15:56 2022 |
Carsten | Analysis | DAQ /Analysis - shift of peaks in the accumulated spectra, changes in code | After a phone call with Wilfried I implemented
an offset to all hit channels of the stacked
/ accumulated spectra where one chekcs the |
|
|
72
|
Mon May 16 17:38:38 2022 |
Max, Danyal, Wilfried, Rodolfo | General | laser bunch timing | We overlapped the laser and ion bunch in the
time domain.
Therefore we delayed the bunching HF in order |
|
|
73
|
Mon May 16 18:01:23 2022 |
mbsMax, Danyal, Wilfried, Rodolfo, Patrick, Kristian, David, Ruijiu | Runs | runs afternoon/night shift 16.05 | These are the runs after the septum was repaired
on 16.05.
|
|
|
74
|
Mon May 16 19:20:55 2022 |
Max, Wilfried | Analysis | start go4 before laser scan | It is necessary to start go4 before you start
the laser scan. Otherwise you get an offset
in the laser Step plots. |
|
|
75
|
Mon May 16 21:08:48 2022 |
Rodolfo & Max | Laser | Laser power | We checked the energy of the laser and optimized
it a bit
|
|
|
76
|
Mon May 16 22:19:54 2022 |
Patrick | DAQ | Keep go4 running (in theory), MBS | To accumulate more data into the opened go4,
do not restart MBS, but just
|
|
|
77
|
Mon May 16 22:57:40 2022 |
Patrick, Kristian, David, Ruijiu | Detectors | Switched off nitrogen | Background counts with nitrogen and air.
Less multiphoton events with air (see pictures,
histogram extended to 30 with nitrogen).
|
|
|
78
|
Tue May 17 00:44:01 2022 |
Patrick, Kristian | DAQ | Changed PMT North CFD channel | In run 8134 - 8135 PMT North showed a super
high background rate. After the scan we checked
the signal cables.
|
|
|
79
|
Tue May 17 06:37:28 2022 |
YL, KM | Accelerator | Reduced beam intensity | The resonance in 209Bi has been seen during
the night.
Reducing the intensity by a factor~1000, |
|
|
80
|
Tue May 17 10:38:44 2022 |
Konstantin | Detectors | PMT North changed | PMT located at the northern window was again
replaced by the narrow-band PMT (ET Enterprise
type 9423 SB, SN: 650). |
|
|
81
|
Fri May 27 10:39:53 2022 |
Kristian | DAQ | PMT North noise | During the last run, PMT North showed some
weird noise.
|
|