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  nuclear two-photon decay, Page 4 of 12  Not logged in ELOG logo
ID Date Author Category Subjectup
  53   Fri May 7 17:35:22 2021 Kanika, Sergey, Yuri, Wolfram, Michael, ShahabRunsEnergy change +6 MeV/u
We will now go up in energy to 447 MeV (+6 MeV) from the original energy

last file name with previous energy:

245: 2021.05.07.16.33.47.178
410: 2021.07.05.17.34.04.780
  51   Fri May 7 17:12:14 2021 Kanika, Sergey, Yuri, Wolfram, Michael, ShahabRunsEnergy change -6 MeV/u
changed the energy down to 435 MeV/u
  89   Sun May 9 02:45:50 2021 Jacobus, Michele, ShahabRunsExample of possible 52.Mn isomer
this is how it should look like
  90   Sun May 9 02:51:44 2021 IrisRunsExample of possible 52.Mn isomer
So the "isomers" pop up at ~-600 Hz and +580 Hz... is the -600 Hz on the left the 378 keV isomer (21 min) and the +580 Hz on the right the g.s.?
  91   Sun May 9 03:24:12 2021 Iris (Shahab, Jacobus, Chris G., Michele)RunsExample of possible 52.Mn isomer
Short update from Yuri: these are not our isomers. These are 45Sc (left, 12 keV isomer not resolvable) and 75Br (center), and the right-most peak of the triplet is a satellite (has a different line shape, much narrower).




> So the "isomers" pop up at ~-600 Hz and +580 Hz... is the -600 Hz on the left the 378 keV isomer (21 min) and the +580 Hz on the right the g.s.?
  3   Tue May 4 13:26:40 2021 YuriSimulationsExpected spectrum 72Ge
A       Z      M/q                Int    difference in kHz@245MHz
68	30	2.263614752	35	-933.1
70	31	2.255131564	124	-457.0
36	16	2.247394703	1	-21.2
45	20	2.24726171	1	-13.7
81	36	2.247136805	1	-6.7
72	32	2.247041397	376	-1.3
72	32	2.247018215	376	0
63	28	2.246941324	1	4.3
54	24	2.246906236	1	6.3
74	33	2.239572482	568	420.9
65	29	2.238342523	100	490.5
76	34	2.232371568	62	829.3
67	30	2.230357529	100	943.7
69	31	2.222859086	172	1370.7
60	27	2.219224118	100	1578.3
62	28	2.211179746	100	2038.7
77	35	2.197207311	116	2842.5
  161   Wed Jun 30 20:58:06 2021 Ragan, HelenaGeneralFew minutes of disruption
There was a disruption from the SIS side for a few minutes.
  87   Sun May 9 02:19:04 2021 Jacobus, ShahabRunsFirst 52Mn run
Run E143-245 MHz-2021.05.09.01.17.42.265.tiq is the first run of the experiment on 52Mn.
  93   Sun May 9 05:11:55 2021 Iris (Chris G., Jacobus, Michele)RunsFirst 52Mn run (no 52Mn unfortunately)
> Run E143-245 MHz-2021.05.09.01.17.42.265.tiq is the first run of the experiment on 52Mn.


And Run E143-410MHz-2021.05.09.03.27.37.368.tiq	from 2021-05-09 03:27 is the first run on the 410 MHz detector. Started a bit later than the 245 MHz detector.
 
  189   Fri Jul 2 01:31:35 2021 The remote Canadian beavers (Iris, Guy)AnalysisFirst spectra after bottle change
The first good spectra after the gas bottle change is from 23:38:25 (on the 410 MHz Analyzer) 
  170   Thu Jul 1 16:47:15 2021 Andrew NicRunsFrequency shift
The freqency suddenly shifted at time 16:11:47 and remained shifted until now 

The ESR status in the monitor stayed blue. No obvious sign that a magnet was down. The operators are checking

Sergey telephoned, he is also not sure but suggests stopping starting the ESR. We will wait for Yuri
  171   Thu Jul 1 17:01:43 2021 JacobusRunsFrequency shift
> The freqency suddenly shifted at time 16:11:47 and remained shifted until now 
> 
> The ESR status in the monitor stayed blue. No obvious sign that a magnet was down. The operators are checking
> 
> Sergey telephoned, he is also not sure but suggests stopping starting the ESR. We will wait for Yuri

In attachment, the moment when the shift occurred. 
  43   Fri May 7 10:46:40 2021 YuriAcceleratorGE02DS3HG
The scraper is blocked at -10 mm and -unfortunately- blocks the beam in the ESR. Uli Popp is taking care.
  8   Thu May 6 00:32:57 2021 Helmut WeickSimulationsGICOSY 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 (S S).
Depending on the choice select different start beam parameters at top of file, others comment out.

There are also different optics setting with different quadrupoles:
- for TE beamline the standard and the mode by Hans for better focus on the target.
- for ESR a standard mode and variations of isochronous modes
also select by commenting in/out.

Input can be made also in units of K'L for fast import from parammodi, still by hand but with copy and paste.
One half of ESR is defined as a block, can be used more or less often (B I HALF ;)
  152   Wed Jun 30 13:05:08 2021 Rui-Jiu ChenAnalysisID of 70Se
This is the latest ID of 70Se setting.
  144   Wed Jun 30 00:20:10 2021 Rui-Jiu ChenAnalysisID of 70Se setting on May
This is an old spectrum which was recoded on May.
  157   Wed Jun 30 19:08:25 2021 Rui-Jiu ChenAnalysisID of 70Se spectrum recorded in May
  135   Fri Jun 25 21:47:24 2021 YuriAnalysisIdentification
Attached are two files with a proposed particle identification.
Different colors indicate different harmonic numbers
  40   Fri May 7 09:56:43 2021 YuriCalibrationIdentification Verification
With closed scrapers there are only a few weak lines.
Open temporarily all scrapers in the ESR to write down the frequencies. 
  164   Thu Jul 1 01:35:15 2021 David, LilianaGeneralIon source change
Changing ion source, no beam expected for the next 30 minutes.

2:15--> Beam is back, intensity not as high as before but will increase in the next few minutes as the source gets hotter.
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