 Fri Jul 2 06:52:11 2021, The remote Canadian eager beavers (Iris and Guy), Analysis, Summary of spectra 0:00-6:00 (410 MHz) 
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Same as before but for 0-6h, 25ms time slices starting at 1.04s.
> Same as before for 4-5h and 5-6h.
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 Fri Jul 2 07:31:44 2021, The remote Canadian eager beavers (Iris and Guy), Analysis, 00h to 05h Summed Spectra
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Using the scripts I posted previously, I summed 5.5 hours of data from midnight to 5:30 July 2nd CEST.
I used 10ms time steps for better time resolution, but that did leave questionable frequency resolution. If anyone would like to see higher resolved frequency
plots for the
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Fri Jul 2 12:42:54 2021, Gregor, Analysis, Spectra 6:00-12:00 12x
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0.1s time slices for 245MHz and 410MHz, with e143_analyzer.py script
python $AnalyzerPath -s 0.$start -t 0.$time sparc-daq-02.gsi.de/E143-245MHz/245MHz-2021.07.02.$hour.* -o t_0.$start-0.$stop |
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Sat Jul 3 01:28:08 2021, The remote Canadian eager beavers (Guy and Iris), Analysis, Summed spectra 410 MHz from 21:00-23:59 (70Se)
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Here's a picture with all injections with an ion in the spectrum (empty ones were removed- list below). The time slices are 0-0.5-1-1.5-2s, then in 0.2s
steps up to 3s. Not really anything to see :-( The previous shift was right, looking at single spectra might be more useful. I'll group the pictures and
upload some "interesting" ones.
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Sat Jul 3 03:07:43 2021, The remote Canadian eager beavers (Guy & Iris), Analysis, Some single spectra (410 MHz) from 21-24h
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| Attached are some single spectra with a rough attempt to group them according to the different ions that appear. |
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Sat Jul 3 03:41:48 2021, The remote Canadian eager beavers (Guy & Iris), Analysis, Summed Spectra Summary
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To summarise the method of bulk summing the spectra, I've created frequency vs time spectra by using the e143_analyser.py script to stack a series of -s
slices. I applied it to some of last runs data with 72Ge, to the 72Br data, last night's less-scraped 70Se, and tonight's more-scraped 70Se, respectively.
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Sat Jul 3 04:33:50 2021, The remote Canadian eager beavers (Guy & Iris), Analysis, Slight shift in 70Se frequency
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Looks like the beam is slightly drifting...the 70Se peak frequency is slightly shifted to the left, by ~0.5 kHz compared to earlier spectra. Might be a
problem with the analyzer (?) or the storage ring energy (slightly lower?)... nothing drastical but to be observed. |
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Sat Jul 3 06:48:38 2021, The remote Canadian eager beavers (Guy & Iris), Analysis, Closer potential isomer tracks
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After looking through >800 shots from Jul 2nd 21h to Jul 3rd 05h, we couldn't find a single example of a "smoking gun" isomer decay. I.e. I'm talking about
the examples Liliana posted earlier. We did find many examples (roughly 10%) where the ion track spontaneously
disappeared, but this shouldn't be the isomer as there was no frequency shift.
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Sat Jul 3 06:49:55 2021, The remote Canadian eager beavers (Guy &Iris), Analysis, List of possible spectra with isomer decay
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Attached is an example for the possible isomer (on the left) next to the 70Se (right).
Here's the list with the files to look at, btw 21:00-6:30. Further analysis needs to be done offline. The slight frequency shift overnight made it a bit |
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Sat Jul 3 07:35:31 2021, The remote Canadian eager beaver (Iris), Analysis, Closer potential isomer tracks
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Here's a list of the spectra to look at for the potential isomer, taken btw 21:00 on July 2nd and 6:30 on July 3rd. Two examples attached.
Name Comment
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Thu May 6 21:26:02 2021, Yuri et al., Accelerator, Energies
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gamma_t = 1.3955
Br(72Ge) corresponds to 6.79575 Tm
E (Kr) at Br(72Ge) = 392.9 MeV/u
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Thu May 6 21:36:04 2021, Regina + Markus + Yuri, Accelerator, Cooler Curve
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| Final cooler curve, Isochronous 78Kr |
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Thu May 6 22:05:30 2021, Helmut, Accelerator, Beamline and ESR data sets for 72Ge setting
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| parammodi exports, E-SIS = 441.0 MeV/u with Be-1840 mg/cm² target in, isoc. ESR, at least we see fragments |
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Fri May 7 02:01:08 2021, Liliana, Akash, Wolfram, Helmut, Shahab, Accelerator, Beam issues for short duration
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RFQ fall-out (HKR working on it...)
Beam stop time: 01.58am
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Fri May 7 03:44:55 2021, Helmut Weick, Accelerator, scraper optimisation
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Opened TE4 slits again to +/-10mm.
Then we tried different scrapers:
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Fri May 7 09:58:04 2021, Yuri, Accelerator, Setting up KO extraction for Caves
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| SIS optimisation requires us to stop. Only sporadic shots. |
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Fri May 7 10:05:06 2021, Yuri, Accelerator, E02DS3HG does not drive
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| E02DS3HG stays at -35 mm and does not react |
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Fri May 7 10:46:40 2021, Yuri, Accelerator, GE02DS3HG
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| The scraper is blocked at -10 mm and -unfortunately- blocks the beam in the ESR. Uli Popp is taking care. |
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Fri May 7 14:06:02 2021, Yuri, Accelerator, SIS kicker failure
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Fri May 7 16:09:50 2021, Yuri, Accelerator, Stop, change of sextuple settings
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