| ID |
Date |
Author |
Category |
Subject |
Text |
 |
|
1
|
Fri Apr 23 13:47:55 2021 |
Jan Glorius | Collaboration | experiment proposal | |
|
|
2
|
Wed Apr 28 09:36:39 2021 |
Helmut Weick | Simulations | LISE file for fragments from TE3UF into ESR | Uncooled beam on target at TE3UF with dispersion
and slit in TE beamlne and realistic injection
into ESR.
|
|
|
3
|
Tue May 4 13:26:40 2021 |
Yuri | Simulations | Expected spectrum 72Ge | A Z M/q Int difference
in kHz@245MHz
68 30 2.263614752 35 -933.1
|
|
|
4
|
Tue May 4 17:54:08 2021 |
Helmut Weick | Simulations | updated LISE file | This file really has the optics like used
in the last ESR experiments.
Now the transmission is also a little bit |
|
|
5
|
Tue May 4 18:25:31 2021 |
Helmut Weick | Simulations | cutting of primary beam | The slits at TE4 and TE5 can be used to cut
away the unwanted 78Kr beam (see pictures).
We do not want activation of the beamline. |
|
|
6
|
Tue May 4 21:49:04 2021 |
Helmut Weick | Simulations | cut Brho by scrapers | The dispersion from the production target
into the ESR is not matched.
This is not good for momentum acceptance, |
|
|
8
|
Thu May 6 00:32:57 2021 |
Helmut Weick | Simulations | GICOSY file for TE beamline and ESR | This file has several options:
start in SIS, at TE3UF target or inside ESR,
choose with GOTO LABEL (G L)after start system |
|
|
9
|
Thu May 6 13:26:56 2021 |
Helmut Weick | Detectors | TE5 profile grids do not work | There are several issues.
1. The stepper motor drive does not react |
|
|
10
|
Thu May 6 14:28:32 2021 |
Helmut Weick | Calibration | Be target thickness calibration -> 1839 mg/cm^2 | Injection was optimized before with Cu-40
mg/cm^2 stripper.
This reduces energy of 78Kr from 370 MeV/u |
|
|
11
|
Thu May 6 14:30:23 2021 |
W. Korten | General | Target thickness | Thickness of the Carbon target in the TE line
has been measured by centering the primary
78Kr beam in the ESR:
|
|
|
12
|
Thu May 6 16:45:42 2021 |
Ragan, Rui-Jiu | DAQ | Data taking with NTCAP | NTCAP is on and data taking has started.
On time: 16:39
|
|
|
13
|
Thu May 6 17:02:49 2021 |
Ragan, Rui-Jiu | DAQ | Scaler signals and parameters of NTCAP | At the moment, we record 7 signals in scaler
channels and one Schottky signal (245 MHz
resonance cavity) in the NTCAP with the attached |
|
|
14
|
Thu May 6 17:48:48 2021 |
W. Korten, Helmut | General | ESR setting for 72Ge ions with primary beam | Setting the 78Kr (after the target) to the
Brho of the 72Ge beam at 368.4 MeV/u (gamma=1.3955),
i.e. 6.79575 Tm, which leads to an energy |
|
|
15
|
Thu May 6 18:21:42 2021 |
Ragan, Rui-Jiu | DAQ | NTCAP started again | NTCAP was stopped at 17:34 for the optimisation
purpose.
NTCAP started again at 18:20 with the change |
|
|
16
|
Thu May 6 21:26:02 2021 |
Yuri et al. | Accelerator | Energies | gamma_t = 1.3955
Br(72Ge) corresponds to 6.79575 Tm
E (Kr) at Br(72Ge) = 392.9 MeV/u
|
|
|
17
|
Thu May 6 21:36:04 2021 |
Regina + Markus + Yuri | Accelerator | Cooler Curve | Final cooler curve, Isochronous 78Kr |
|
|
18
|
Thu May 6 21:45:30 2021 |
Helmut | Detectors | beam position on TE5 grids | The two grids do not work very well, one x
position is opposite to the other.
But at least a guidance for the future, this |
|
|
19
|
Thu May 6 22:05:30 2021 |
Helmut | Accelerator | Beamline and ESR data sets for 72Ge setting | parammodi exports, E-SIS = 441.0 MeV/u with
Be-1840 mg/cm² target in, isoc. ESR, at least
we see fragments |
|
|
20
|
Thu May 6 23:06:18 2021 |
Rui-Jiu Chen | DAQ | Change reference level to -50dBm | Beam is secondary beam now. The intensity
is lower. Change reference level to -50dBm.
Carrier frequency:245MHz
|
|
|
21
|
Fri May 7 01:07:27 2021 |
Helmut Weick | Analysis | maybe frequency ID | We think we see the frequency range of A/q=2.25
at 243.1 MHz.
This would correspond to L=108.2m and E=386.4 |
|