ID |
Date |
Author |
Category |
Subject |
|
73
|
Sat May 8 10:51:41 2021 |
Akash, Nic, Jelena, Zsolt | Calibration | ESR settings seem different |
Settings don't look the same...so we are not yet writing files unless sure. |
|
72
|
Sat May 8 08:44:32 2021 |
Akash, Nic, Jelena, Zsolt | Accelerator | No Beam! |
08.43am: Beam stopped. HKR looking into it. Reason: they mentioned they don't know yet!
10.10am: SIS resumed operations. However, there are some issues with magnet power supplies for ESR and hence we still don't have beam. HKR member went to look for power supply expert.
10.15am: There were some random triggers coming from ESR, which resulted in files being written. To avoid this, the scope trig (both scopes) were taken out. As soon as the beam comes in 'properly', I will reconnect the trig in to the scopes (-akash).
10.40am: They sent something to ESR but it does not make sense...so HKR has called an ESR expert (Sergey).
11.30am: Yuri is here and trying to sort out the issue- no data being written yet. |
|
71
|
Sat May 8 08:16:08 2021 |
Akash, Nic, Jelena, Zsolt | Analysis | Night shift analysis |
(Jelena has analysed these data files)
E143_245MHz_2021.05.08.00* (-s 5.0 -t 0.5) (2021.05.08.09.01.11.png)
E143_245MHz_2021.05.08.01* (-s 5.0 -t 0.5) (2021.05.08.08.56.05.png)
E143_245MHz_2021.05.08.02* (-s 5.0 -t 0.5) (2021.05.08.08.44.10.png)
E143_245MHz_2021.05.08.03* (-s 5.0 -t 0.5) (2021.05.08.08.33.46.png)
E143_245MHz_2021.05.08.04* (-s 5.0 -t 0.5) (2021.05.08.08.26.49.png)
E143_245MHz_2021.05.08.05* (-s 5.0 -t 0.5) (2021.05.08.07.58.22.png)
E143_245MHz_2021.05.08.06* (-s 5.0 -t 0.5) (2021.05.08.08.12.14.png)
E143_245MHz_2021.05.08.07* (-s 5.0 -t 0.5) (2021.05.08.09.12.53.png)
-------------------------------------------------------------------------
E143_410MHz_2021.05.08.00* (-s 5.0 -t 0.5) (2021.05.08.10.20.39.png)
E143_410MHz_2021.05.08.01* (-s 5.0 -t 0.5) (2021.05.08.10.16.46.png)
E143_410MHz_2021.05.08.02* (-s 5.0 -t 0.5) (2021.05.08.10.13.09.png)
E143_410MHz_2021.05.08.03* (-s 5.0 -t 0.5) (2021.05.08.10.07.05.png)
E143_410MHz_2021.05.08.04* (-s 5.0 -t 0.5) (2021.05.08.10.04.05.png)
E143_410MHz_2021.05.08.05* (-s 5.0 -t 0.5) (2021.05.08.09.51.12.png)
E143_410MHz_2021.05.08.06* (-s 5.0 -t 0.5) (2021.05.08.09.45.12.png)
E143_410MHz_2021.05.08.07* (-s 5.0 -t 0.5) (2021.05.08.09.38.33.png) |
|
70
|
Sat May 8 08:12:02 2021 |
Akash, Nic, Jelena, Zsolt | General | SIS, ESR time structure changes |
The structure of SIS extraction seems to have changed a little...also for ESR injection.
In the span of a few minutes both the structures changed again...to look more like in the previous shifts, with lesser or no negative component. |
|
69
|
Sat May 8 07:34:08 2021 |
Akash, Nic, Jelena, Zsolt | General | Zoom has its own mind |
Zoom kicked us all out... we managed to get back in...screen sharing is back on. |
|
68
|
Sat May 8 07:14:00 2021 |
Akash, Nic, Jelena, Zsolt | General | Morning shift entry |
Things look ok. No settings have been changed...
Analysis attempts are going on... |
|
67
|
Sat May 8 03:08:57 2021 |
Rui-Jiu Chen | DAQ | Change reference level to -50dBm |
Start a new run. The data of new run is in :
SC_2021-05-07_17-39-16
IQ_2021-05-07_17-39-16 |
|
66
|
Sat May 8 03:05:42 2021 |
Rui-Jiu Chen | DAQ | Change reference level to -60dBm |
Start a new run. The data of new run is in :
SC_2021-05-07_17-33-29
IQ_2021-05-07_17-33-29 |
|
65
|
Sat May 8 01:43:23 2021 |
Helmut Weick | Accelerator | 70Se setting |
If gamma_t = 1.3955 Tm stays, we will need Brho = 6.21902 Tm for 70Se.
The corresponding ESR Brho setting will be a bit shifted.
It then requires E-SIS = 446.55 MeV/u to get 70Se to this Brho and gamma_t.
For pre-drilling with 78Kr beam at same Brho use 416.70 MeV/u.
But we could also make a quick try without tuning before, just change all energies. |
|
64
|
Sat May 8 01:33:25 2021 |
Helmut Weick | Simulations | frequency list for 70Se setting |
EXCEL table with all possible fragments injected into ESR.
The path length in ESR, gamma_t and harmonic are adjusted to the 72Ge data.
Some lifetimes are limited but all intense lines are >30s in lab system.
There are two versions (for cooled beam with fixed v or uncooled (isochronous)
with fixed average Brho, take the second (grey) column.
For larger frequency shifts harmonics will overlap.
You can add more isomers. |
|
63
|
Sat May 8 01:06:19 2021 |
Philipp, Marta | General | Screenshot |
The signal of the transformer on the lower right panel is not really beam related. It is mostly noise. Changes are not so expected with this low beam intensity |
|
62
|
Sat May 8 00:38:55 2021 |
Philipp, Marta | General | Screenshot |
|
|
61
|
Fri May 7 23:08:44 2021 |
Michael, Kanika | Accelerator | Beam issues for short duration |
The beam was lost for a few minutes from 23:01 to 23:06. It is back now. |
|
60
|
Fri May 7 22:48:33 2021 |
Chris | General | still running... |
In anticipation of the imminent shift change, a snapshot of how things look. |
|
59
|
Fri May 7 22:00:36 2021 |
Chris | Accelerator | brief beam loss |
Brief interruption in beam, ~21:42-21:51. |
|
58
|
Fri May 7 20:34:27 2021 |
Kanika, Michael, Shahab | Runs | back to 15 sec recording |
now we are going back to 15 sec operation. Cave M (bio) operation is over |
|
57
|
Fri May 7 20:28:32 2021 |
Kanika, Michael, Shahab | Analysis | Some pictures from the 410 detector |
some pics. |
|
56
|
Fri May 7 19:56:10 2021 |
Kanika, Michael, Shahab | Runs | ZOOM session restart |
restart zoom session |
|
55
|
Fri May 7 18:43:13 2021 |
Kanika, Michael, Shahab | Runs | cave M experiment needs more spills |
our pattern causes beam loss while scanning the biological probes in the Cave M bio experiment. They loose every other spill due to high request rate from ESR.
For the next 2 hours, the operators have changed the spill pattern that as long as they are scanning , we get only every 1 minute, otherwise we get our 15 seconds as usual.
after two hours this situation should be tuned back to the original spill pattern. |
|
54
|
Fri May 7 18:08:35 2021 |
Kanika, Sergey, Yuri, Wolfram, Michael, Shahab | Runs | going back to the original energy |
going back to the original energy 441 MeV/u
last filenames with the previous energy:
245: 2021.05.07.17.07.00.543
410: 2021.05.07.18.07.18.037 |