| ID | 
Date | 
Author | 
Category | 
Subject | 
| 
  114  
 | 
Tue May 21 11:09:15 2024 | 
Yuri | General | Logbook for beam tuning. | 
The version with better resolution is on our wiki page. 
https://wiki.gsi.de/pub/ESR_EXP/E0018Experiment/20240521_logbook3.pdf | 
| 
  113  
 | 
Tue May 21 08:50:06 2024 | 
Yuri | Accelerator | EoB | 
End of beamtime!
Request is out.
Scrapers are removed, slits in the TE line removed, ESR is ramped down.  | 
| 
  112  
 | 
Tue May 21 03:27:21 2024 | 
K.Takiura Y.Kikuchi | Runs | Beam back | 
03:26 Beam is back.  | 
| 
  111  
 | 
Tue May 21 03:07:58 2024 | 
K.Takiura Y.Kikuchi | Runs | No beam | 
03:07 Beam is down.  | 
| 
  110  
 | 
Mon May 20 14:02:03 2024 | 
Jelena, Oliver, Shahab | DAQ | Retune 245 MHz | 
Mew numbers for 245 MHz plunger is 190 (both)  | 
| 
  109  
 | 
Mon May 20 13:31:09 2024 | 
Jelena, Oliver, Shahab | General | New setting focussing on 96-Sr | 
plunger 150 for 250
plunger 48 for 410 
From file starting from 13:21 is a new setting for 96Sr.  | 
| 
  108  
 | 
Mon May 20 13:26:55 2024 | 
Jelena, Oliver, Shahab | General | Plunger values | 
plunger 150 for 250
plunger 48 for 410   | 
| 
  107  
 | 
Mon May 20 09:01:51 2024 | 
Oliver, Jelena | General | Shift news | 
Data collection runs smooth so far.
Yuri Litvinov will start modifying SP magnets now. The resolution will change.  | 
| 
  106  
 | 
Mon May 20 09:01:14 2024 | 
Yuri | Accelerator | Modify SP magnets | 
In attempt to remove double-peak structure, we will modify the SP magnets
START: 9:02
SP unchanged. Other values lead to a worse peak shapes.
Scrapers: 
EEXDS2HA: -75 mm -> -5 mm (hopefully the left half is scraped)
E02DS3HG: -60 mm - unchanged
STOP: 9:40  | 
| 
  105  
 | 
Mon May 20 05:32:17 2024 | 
Gregor, Cagla | Accelerator | Short beam interruption | 
We lost the beam for ~2min at (from ~5:28 till ~5:30). Everything seems to be back at the same state.  | 
| 
  104  
 | 
Sun May 19 17:48:15 2024 | 
xing xu, hongfu, shahab | Runs | Beam back | 
beam is back, first file 17:47  | 
| 
  103  
 | 
Sun May 19 15:13:48 2024 | 
xing xu, hongfu | Runs | No beam | 
beam is down 14:45. Problem with UNILAC. may take an hour.  | 
| 
  102  
 | 
Sun May 19 14:17:57 2024 | 
Shahab, Kanika,hongfu li,xing xu | DAQ | center frequency change for 96Sr | 
aiming for 96-Sr:
410 MHz:
The plunger position for 410 is 45, which should correspond to the 408.998 MHz which is expected position for 96Sr. The first file is at 14:38.
245 MHz:
The center frequency is changed to 244.235723 MHz for 96Sr, the new plunger position is 300.The first file is at 14:5  | 
| 
  101  
 | 
Sun May 19 14:11:29 2024 | 
Yuri, Sergey | Accelerator | Sextupoles | 
at 13:00
scrapers in the ESR are moved to block the most outside orbits
E02DS3HG out -> -60 mm
EEXDS2HA out -> -75 mm
at 13:50
E02KS3 changed from +0.01 to -0.1
E01KS4 is unchanged at -0.26
peaks look somewhat narrower (see telegram)  | 
| 
  100  
 | 
Sun May 19 12:04:55 2024 | 
Kanika | Accelerator | Beam back | 
The beam is back.  | 
| 
  99  
 | 
Sun May 19 11:02:49 2024 | 
Xu Zhou, Yuhu Zhang, Kanika | Accelerator | the beam is paused | 
The beam is paused and HHT team needs to enter the ring.  | 
| 
  98  
 | 
Sat May 18 16:45:15 2024 | 
Helmut, Yury | Accelerator | setting for 96Sr (98Y) | 
To have a few more lines the setting actually is not on 96Sr directly, but on 98Y39+.
98Y is also the one set to be isochronous. 
But in addition the SIS-energy is shifted by -0.9 MeV/u to get at least better transmission for 96Sr.  | 
| 
  97  
 | 
Sat May 18 16:29:15 2024 | 
Filip, Taka, Shahab | Runs | Good operation screen shot | 
 | 
| 
  96  
 | 
Sat May 18 16:21:30 2024 | 
Taka, Filip, Shahab | DAQ | DAQ start | 
16:21 DAQ restart for 96Sr
Acq. time 300 ms, 50 MS/s, span 25 MHz  | 
| 
  95  
 | 
Sat May 18 15:26:46 2024 | 
Taka, Filip | DAQ | DAQ stop | 
15:20 RSA DAQ stop -> Sr setting  |