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  nuclear two-photon decay, Page 1 of 12  Not logged in ELOG logo
ID Date Author Category Subjectup
  83   Sat May 8 21:42:51 2021 AllAccelerator Set up for 52Mn
Details will follow
E(Mn) = 368.41 MeV/u
  202   Fri Jul 2 07:31:44 2021 The remote Canadian eager beavers (Iris and Guy)Analysis00h to 05h Summed Spectra
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 
full 5 hours, let me know.
I've attached the spectra from 0s to 4s  for the 410MHz and 0s to 2s for the 245MHz, including zooming in on the injection timing. 

Given that we are summing 5 hours of data so the background is very smooth, I can only conclude that either the isomer doesn't exit, we cannot resolve it, or we are 
producing incredibly low amounts such that the search needs to be needle in a haystack. 
Attachment 1: 245MHz-07.02.00-05h-sum_10ms.png
245MHz-07.02.00-05h-sum_10ms.png
Attachment 2: 245MHz-07.02.00-05h-sum_10ms_zoom.png
245MHz-07.02.00-05h-sum_10ms_zoom.png
Attachment 3: 410MHz-07.02.00-05h-sum_10ms.png
410MHz-07.02.00-05h-sum_10ms.png
Attachment 4: 410MHz-07.02.00-05h-sum_10ms_zoom.png
410MHz-07.02.00-05h-sum_10ms_zoom.png
  151   Wed Jun 30 13:04:40 2021 ShahabRuns245 Amplifier on
turned on extra 20dB amplifier for the 245 Resonator around 12:32 
Attachment 1: amplification_on245.png
amplification_on245.png
  31   Fri May 7 04:26:54 2021 ShahabRuns245 MHz resonator extra 20dB gain off
made sure that the extra 20dB amplifier is off.
  65   Sat May 8 01:43:23 2021 Helmut WeickAccelerator70Se setting
If gamma_t = 1.3955 Tm stays, we will need Brho = 6.21902 Tm for 70Se.
The corresponding ESR Brho setting will be a bit shifted.
It then requires E-SIS = 446.55 MeV/u to get 70Se to this Brho and gamma_t.

For pre-drilling with 78Kr beam at same Brho use 416.70 MeV/u.
But we could also make a quick try without tuning before, just change all energies.
  147   Wed Jun 30 08:59:37 2021 YuriAccelerator70Se setting
X(9Be)=1.815 g/cm2 (adjusted in primary beam setting)

Gamma_t=1.3956
E(70Se)=368.499 MeV/u
Br(70Se)=6.21993 Tm

Pre-drilling:
E(78Kr)@Br(70Se)=337.461 MeV/u
E(SIS) = 415.792 MeV/u

Fragment Setting:
E(SIS) = 445.68 MeV/u
  220   Fri Jul 2 20:33:44 2021 YuriAccelerator70Se setting with closed scrapers
We tune back to 70Se.
The scrapers stay closed at EEXDS2HA=0 mm, EEXDS1HG=+5 mm
"Single"-particle run
  140   Tue Jun 29 21:10:30 2021 ShahabRuns72-Ge setting
the new setting is roughly 400 khz lower in frequency.
Previous beam time Ge was on 243.100 now it is on 242.74

we decided to use the higher harmonic:

expecting it on 244.66 MHz
  36   Fri May 7 08:04:22 2021 Carlo Bruno, Desislava KalaydjievaAnalysis7:00 - 14:00 analysis shift
(See
https://triumfoffice365-my.sharepoint.com/:w:/g/personal/dillmann_triumf_ca/Eb_LCp7yTx5Bgc8TO8khJmEBWeS-ycdPRnG02wQout-fgQ?rtime=3n3A3xMR2Ug
for remote shifter instructions. To be updated/corrected by the experts)

08:00 Analysed data from 6 am to 7 am  (Note file names are one hour behind).
Using e143_analyzer.py -t 0.5 E143-245MHz-2021.05.07.05.*
See attachments 1,2,3

08:17 Analysed data from 7am to 8am (Note file names are still one hour behind)
As above.
See attachments 4,5,6

Analysed data from 8am to 9am (Note file names are still one hour behind)
As above.
See attachment 7

At 8:50 Yury changes trigger on scope from 50% to 1% (minimum value).
We should now have the beginning of the injection as well, and isomers should appear at 0.1 s

9:35 Lost beam from SIS

09:45 Analysed data from 9am to 9:30 am (Note file names are still one hour behind)
These are the first data with the new trigger settings
As above
See attachment 8

11:50 Beam is back, scraper being optimised.
12:30 Scraper optimisation complete.

13:00 Analysed data from 12:30 to 12:45 roughly.
Attach 9 - default code. -t 0.5
Attach 10 - new untested code with skip function. See Slack#analysis. -t 0.5 -s 0.2
Attach 11 - as 10, log scale on the y

13:48 Analysed data from to 12:30 to 13:35
-t 0.5 Attach 12
-t 1 Attach 13 (log y) 

14:05 Lost beam in ESR

14:30 Analysed data from 13:00 to 14:00 before we lost beam.
-t 0.2 -s 0.1
Attach 13 & 14

14:35 Beam is back 

15:00 Shift handed over to AG and CJC
Attachment 1: 210507_6am.png
210507_6am.png
Attachment 2: 210507_6am_zoom.png
210507_6am_zoom.png
Attachment 3: 210507_6am_log.png
210507_6am_log.png
Attachment 4: 210507_7am.png
210507_7am.png
Attachment 5: 210507_7am_zoom.png
210507_7am_zoom.png
Attachment 6: 210507_7am_log.png
210507_7am_log.png
Attachment 7: 210507_8am_log.png
210507_8am_log.png
Attachment 8: 210507_9-9.30am_log.png
210507_9-9.30am_log.png
Attachment 9: 11.30_11.45_t0.5.png
11.30_11.45_t0.5.png
Attachment 10: 12am_t0.5_s0.2.png
12am_t0.5_s0.2.png
Attachment 11: 12am_t0.5_s0.2_log.png
12am_t0.5_s0.2_log.png
Attachment 12: 11.23_12.30.png
11.23_12.30.png
Attachment 13: 1_11.23_12.30_log.png
1_11.23_12.30_log.png
Attachment 14: 1pm_0.2_0.1png.PNG
1pm_0.2_0.1png.PNG
Attachment 15: 1pm_0.2_0.1_zoom.PNG
1pm_0.2_0.1_zoom.PNG
  180   Thu Jul 1 20:48:58 2021 Shahab Andrew NicDAQAcquisition started
15dB amplifier on 410MHz 
  179   Thu Jul 1 20:35:21 2021 Andrew Nic ShahabDAQAcquisition stopped
Checking if signal can be further amplified 

Last files:
245MHz 2021.07.01.20.36.11.218
410MHz 2021.07.01.20.35.46.847
  103   Sun May 9 12:53:01 2021 Desislava Kalaydjieva, Taka YamaguchiAnalysisAnalysis, Morning shift, 9 May
For the whole morning shift there were no significant changes in the spectra.

Some of the obtained histograms are attached below. 
The python code was used and the histogram was plotted in ROOT with log y scale. 
The time, the used code options and the data type are marked in the filenames or in the description below. 

Attachment 1-4: 245MHz, options used " -s 5.1 -t 0.5 ", time marked in the filename (time as in the title of the files on the server (-1h of the real time)).

Attachment 5: 410MHz, with the same options for the python code, real time names. It is different from 245MHz histogram.
Attachment 6: Comparison between 245MHz histogram and 410MHz histogram for real time 10:00 - 11:00.
Note: This difference is observed in the histograms from the early morning hours too (checked up to 4 o'clock).

Attachment 7: 245MHz data, with options "-s 5.0 (Red) / -s 5.05 (Green) / -5.1 (Blue) -t 0.5" (real time 08:00 - 09:00)
Attachment 8: 245MHz data, with options "-s 5.0 (Red) / -s 5.05 (Green) / -5.1 (Blue) -t 0.1" (real time 08:00 - 09:00)
Attachment 9: 410MHz data, with options "-s 5.0 (Red) / -s 5.05 (Green) / -5.1 (Blue) -t 0.5" (real time 08:00 - 09:00)
Attachment 1: 05.00_05.59_s5.1_t0.5_245MHz.png
05.00_05.59_s5.1_t0.5_245MHz.png
Attachment 2: 06.00_06.40_s5.1_t0.5_245MHz.png
06.00_06.40_s5.1_t0.5_245MHz.png
Attachment 3: 08.00_08.33_245MHz_s5.1_t0.5.png
08.00_08.33_245MHz_s5.1_t0.5.png
Attachment 4: 12.00_12.15_245MHz_s.1_t0.5_filename_time.png
12.00_12.15_245MHz_s.1_t0.5_filename_time.png
Attachment 5: 07.00_07.59_s5.1_t0.5_410MHz.png
07.00_07.59_s5.1_t0.5_410MHz.png
Attachment 6: 10.00_11.00_s5.1_t0.5_410_245MHz.png
10.00_11.00_s5.1_t0.5_410_245MHz.png
Attachment 7: 07-08_filename_time_245MHz_t0.5.png
07-08_filename_time_245MHz_t0.5.png
Attachment 8: 07_08_filename_time_0.1t_245MHz.png
07_08_filename_time_0.1t_245MHz.png
Attachment 9: 08.00_08.59_410MHz_t0.5.png
08.00_08.59_410MHz_t0.5.png
  45   Fri May 7 12:37:35 2021 Ragan, Andrew, Yuri, AlexGeneralBack with beam
We are back with the beam in the ESR since 12:30
ALL SCRAPERS ARE IN THE ORIGINAL POSITIONS
E02DS3HG = - 35 mm
EEXDS2HA = - 25 mm
EEXDS1HA = - 25 mm
E01DS_H = - 40 mm

For E02DS3HG a reset in the control system needed to be done.
  10   Thu May 6 14:28:32 2021 Helmut WeickCalibrationBe target thickness calibration -> 1839 mg/cm^2
Injection was optimized before with Cu-40 mg/cm^2 stripper.
This reduces energy of 78Kr from 370 MeV/u -> 386.52 MeV/u.
To keep the same ESR injetion the SIS energy was raised with Be 10mm tatget.
For exactly 1850 mg/cm^2 a SIS-energy of 445.46 MeV/u would be needed. A scan of SIS energy resulted in 445.0 MeV/u as optimal.
This means target thickness is close to 1850 mg/cm^2, we can call it 1839 mg/cm^2.
  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. 
  165   Thu Jul 1 04:15:54 2021 David, LilianaGeneralBeam intensity
From 4:05 to 4:15 beam intensity was 1/2 as before. 
  166   Thu Jul 1 07:28:55 2021 Jan, AkashAcceleratorBeam intensity
Intensity went up from 5e8 to 1e9 extracted particles from SIS.
  47   Fri May 7 14:33:23 2021 Andrew Ragan Yuri GeneralBeam is back
  124   Mon May 10 01:01:59 2021 Kanika, Alex, RuiJiuGeneralBeam is back
The issue has been resolved and the beam is back since 00:56.
  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
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