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  nuclear two-photon decay, Page 6 of 12  Not logged in ELOG logo
ID Date Authordown Category Subject
  206   Fri Jul 2 12:18:35 2021 Pavlos, AlexandreAcceleratore-cooling
Sergey Litvinov will now try to setup the e-cooler to cool the beam in the ESR. 
The data taking has been stopped (except the NTCAP).
  208   Fri Jul 2 12:59:21 2021 Pavlos, AlexandreDAQNTCAP status
The latest recorded tdms files:
 p:\E143\sc\SC_2021-06-30_23-27-45\0000515
 p:\E143\iq\IQ_2021-06-30_23-27-34\0002516
2. The rest space on the drive "p:\" : 25,0TByte
  210   Fri Jul 2 13:37:00 2021 Pavlos, AlexandreDAQChange of the measurement time from 10s to 20s
Last files with the measurement time of 10s for the two resonators are:

245MHz-2021.07.02.13.36.00.674.tiq
410MHz-2021.07.02.13.35.34.758.tiq
  212   Fri Jul 2 14:18:04 2021 Pavlos, AlexandreRunsChange of the measurment to 72Br
Both resonators will now be retuned to look for the isomeric state in 72Br.

Last files for 70Se are:
245MHz-2021.07.02.14.17.14.507.tiq
410MHz-2021.07.02.14.16.48.528.tiq
  213   Fri Jul 2 15:03:37 2021 Pavlos, AlexandreDAQNTCAP status
The latest recorded tdms files:
 p:\E143\sc\SC_2021-06-30_23-27-45\0000543
 p:\E143\iq\IQ_2021-06-30_23-27-34\0002655
2. The rest space on the drive "p:\" : 24,5TByte
  154   Wed Jun 30 14:48:54 2021 OliverGeneralData taking - and not...
We just started data taking. But a few minutes later the main experiment needed to do some adjustements to the beam. This interrupts us for a couple of minutes...
  155   Wed Jun 30 14:52:28 2021 OliverGeneralRe-Started data taking...
Main user is finished. We started data taking again...
  177   Thu Jul 1 19:24:59 2021 Nic Andrew ShahabRunsStart of data taking again
410 MHz resolution and power optimised


Last files before the restart were
245Mhz-2021.07.01.18.48.31.725.tiq
410MHz-2021.07.01.18.48.07.516.tiq
  92   Sun May 9 04:15:50 2021 Michele, Jacobus, ShahabRunsBeam issues for short duration
ESR warning (colour red in the panel)

Operator intervention required. 

Runs affected by this issue: 

-from E143-245MHz-2021.05.09.02.49.48.521 (03:50) 
-to E143-245MHz-2021.05.09.02.54.54.239 (03:54) .  



  
  75   Sat May 8 15:18:23 2021 Michael, Wolfram, YuriGeneralBeam Settings changing
Beam settings are being changed back to 78Kr beam at 467 Mev/u. 
  81   Sat May 8 21:10:24 2021 Michael, Ruijiu, Helmut, Yuri, Wolfram, Sergey, ShahabRunsstarted data taking with high resolution
after optimizing the scrapers we have reached the highest possible resolution in the isochronous mode.

starting data taking with this new settings.

last files before this settings were:

245: 2021.05.08.14.14.55.114.tiq
410: 2021.05.08.15.15.10.101.tiq
  84   Sat May 8 22:06:36 2021 Michael, Ruijiu, Helmut, Yuri, Wolfram, Sergey, ShahabRunsstopped data taking with the high resolution
last file names with this setting:

245: 2021.05.08.20.42.03.743.tiq
410: 2021.05.08.21.42.17.969.tiq
  61   Fri May 7 23:08:44 2021 Michael, KanikaAcceleratorBeam issues for short duration
The beam was lost for a few minutes from 23:01 to 23:06. It is back now.
  102   Sun May 9 08:00:03 2021 Liliana, AndrewGeneralStatus
So far, we keep the setting as it is and wait for experts to come in. 
Few spills are missing from time to time. One of the peaks stays usually in the spectrum when this happens. 
Analysis of the last hours is being performed by the remote shift, in case it is useful. Some plots in telegram. 
  25   Fri May 7 02:01:08 2021 Liliana, Akash, Wolfram, Helmut, ShahabAcceleratorBeam issues for short duration
RFQ fall-out (HKR working on it...)

Beam stop time: 01.58am

Beam resumption: 02.02am
  26   Fri May 7 03:33:11 2021 Liliana, Akash, Wolfram, Helmut, ShahabGeneralstatus
At the moment we see a second peak to the left of each intense line. 
The distance between the main peak and the shadow is roughly the same for each peak.
This hints to a sharp fall in the isochronicity curve.
Helmut now tries to remove these shadows by using different scrappers. 
  28   Fri May 7 03:46:58 2021 Liliana, Akash, Wolfram, Helmut, ShahabGeneralScraper settings
Scraper settings have been played around with to try and remove satellite lines...

Helmut has now set scraper id GE01DS_H at -45mm (in position)

Image of injection structure attached... 72Ge is the isotope in focus on the RSA
  32   Fri May 7 04:39:00 2021 Liliana, Akash, Wolfram, Helmut, ShahabRunsData taking starts
File start being recorded at 4:38 am 
Sync with the server is working. 

Be aware that the timestamp of the files is 1h behind with respect to real time
  104   Sun May 9 13:15:38 2021 Liliana AndrewRunsStopped data taking during modifications for the beam energy
Beam energy to be increase to move Mn into the ring. 
First step we set the energy to 445 MeV. 
The effect of the change can be seen on the plot: Right is how it was before and left after the change. 
  215   Fri Jul 2 17:27:56 2021 LilianaDAQNTCAP status
The latest recorded tdms files:
 p:\E143\sc\SC_2021-06-30_23-27-45\0000577
 p:\E143\iq\IQ_2021-06-30_23-27-34\0002818
2. The rest space on the drive "p:\" : 23,8TByte
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