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ID Date Author Categorydown Subject
  2   Wed Apr 28 09:36:39 2021 Helmut WeickSimulationsLISE 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.
Now tuned for 72Ge but can easily be modified to other fragment settings. 
The target thickness may need adjustemet after measurement.
The attched powerpoint file explains the settup a bit more.
  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
  4   Tue May 4 17:54:08 2021 Helmut WeickSimulationsupdated LISE file
This file really has the optics like used in the last ESR experiments.
Now the transmission is also a little bit better.
  5   Tue May 4 18:25:31 2021 Helmut WeickSimulationscutting 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. 78Kr35+ even has a chance of being injected.
  6   Tue May 4 21:49:04 2021 Helmut WeickSimulationscut Brho by scrapers
The dispersion from the production target into the ESR is not matched.
This is not good for momentum acceptance, but we anyway want to cut the acceptance.
Dispersion will oscillate with the tune of ESR. After 3 turns we expect a maximum dispersion. 
The picture shows in red the dispersion curve for dp/p=0.1% and beam envelopes of 10 mm mrad.
So we can use scrapers in north or south arc to cut Brho. It should be done from both sides.
How much? Watch the intensity drop.
Best positions look at plot. Straight section outside for low Brho, arc outside for high Brho.
Could be EEXDS2HA and E02DSH (outside).
  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 ;)
  64   Sat May 8 01:33:25 2021 Helmut WeickSimulationsfrequency 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.
  30   Fri May 7 04:01:51 2021 ShahabRunsPicture after scraping
this picture is after scraping by helmut, showing the 410 MHz detector, that is we would expect an isomer where the marker M1 is, i.e. at 2.2kHz on the left side, which we unfortunately don’t see (yet).
  31   Fri May 7 04:26:54 2021 ShahabRuns245 MHz resonator extra 20dB gain off
made sure that the extra 20dB amplifier is off.
  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
  49   Fri May 7 16:17:21 2021 Sergey, Yuri, Wolfram, ShahabRunsnew sextupole setting
new sextupole setting, isomer not visible yet.
  50   Fri May 7 17:02:51 2021 Kanika, Sergey, Yuri, Wolfram, Michael, ShahabRunsnew sextupole setting 2
There is new sextupole settings, but the scrapers remain like last night (Helmut setting last night.)
  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
  52   Fri May 7 17:12:52 2021 Kanika, Sergey, Yuri, Wolfram, Michael, ShahabRunstrigger time back to 50%
changed trigger time back to 50%

last file with 1% trigger: 

245 MHZ 2021.05.07.16.07.03.493
410 MHz 2021.05.07.17.07.21.104


p.s. remember the 245 Analyzer has a 1 hour offset in time stamp because of daylight saving time in win10 setting
  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
  54   Fri May 7 18:08:35 2021 Kanika, Sergey, Yuri, Wolfram, Michael, ShahabRunsgoing 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
  55   Fri May 7 18:43:13 2021 Kanika, Michael, ShahabRunscave 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.
  56   Fri May 7 19:56:10 2021 Kanika, Michael, ShahabRunsZOOM session restart
restart zoom session
  58   Fri May 7 20:34:27 2021 Kanika, Michael, ShahabRunsback to 15 sec recording
now we are going back to 15 sec operation. Cave M (bio) operation is over
  77   Sat May 8 17:29:54 2021 Yuri, Sergey, Wolfram, Michael, ShahabRunsrecording Kr decay measurement on NTCAP
Uc = 250mA
decay Kr 78, 476 MeV/u

in iso mode

NTCAP is running
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