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  nuclear two-photon decay 2024, Page 1 of 6  Not logged in ELOG logo
Entry  Tue May 14 15:07:23 2024, Ruijiu, David, Shahab, Xinliang, Zhangmin, Runs, Cooler curve measurement 7x

Cooler curve measurement

# First run:
# V, RSA01-File, RSA02-File
-2300, RSA01-2024.05.14.15.21.21.576.tiq, RSA02-2024.05.14.15.21.21.334.tiq
-2200, RSA01-2024.05.14.15.22.56.743.tiq, RSA02-2024.05.14.15.22.56.501.tiq
-2100, RSA01-2024.05.14.15.24.17.833.tiq, RSA02-2024.05.14.15.24.17.591.tiq
-2000, RSA01-2024.05.14.15.25.34.248.tiq, RSA02-2024.05.14.15.25.34.006.tiq
-1900, RSA01-2024.05.14.15.26.39.602.tiq, RSA02-2024.05.14.15.26.39.359.tiq
-1800, RSA01-2024.05.14.15.27.41.204.tiq, RSA02-2024.05.14.15.27.40.962.tiq
-1700, RSA01-2024.05.14.15.28.45.781.tiq, RSA02-2024.05.14.15.28.45.539.tiq
-1600, RSA01-2024.05.14.15.29.49.831.tiq, RSA02-2024.05.14.15.29.49.589.tiq
-1500, RSA01-2024.05.14.15.31.02.912.tiq, RSA02-2024.05.14.15.31.02.670.tiq
-1400, RSA01-2024.05.14.15.32.53.806.tiq, RSA02-2024.05.14.15.32.53.564.tiq
-1300, RSA01-2024.05.14.15.34.02.599.tiq, RSA02-2024.05.14.15.34.02.357.tiq
-1200, RSA01-2024.05.14.15.35.32.079.tiq, RSA02-2024.05.14.15.35.31.836.tiq
-1100, RSA01-2024.05.14.15.36.35.601.tiq, RSA02-2024.05.14.15.36.35.359.tiq
-1000, RSA01-2024.05.14.15.37.52.778.tiq, RSA02-2024.05.14.15.37.52.536.tiq
-900, RSA01-2024.05.14.15.39.20.656.tiq, RSA02-2024.05.14.15.39.20.414.tiq
-800, RSA01-2024.05.14.15.40.24.019.tiq, RSA02-2024.05.14.15.40.23.777.tiq
-700, RSA01-2024.05.14.15.41.41.963.tiq, RSA02-2024.05.14.15.41.41.721.tiq
-600, RSA01-2024.05.14.15.42.53.140.tiq, RSA02-2024.05.14.15.42.52.899.tiq
-500, RSA01-2024.05.14.15.43.55.830.tiq, RSA02-2024.05.14.15.43.55.588.tiq


# Second run:

-1400, RSA01-2024.05.14.16.01.38.472.tiq, RSA02-2024.05.14.16.01.38.231.tiq
-1410, RSA01-2024.05.14.16.02.42.778.tiq, RSA02-2024.05.14.16.02.42.536.tiq
-1420, RSA01-2024.05.14.16.03.50.044.tiq, RSA02-2024.05.14.16.03.49.802.tiq
-1430, RSA01-2024.05.14.16.05.04.612.tiq, RSA02-2024.05.14.16.05.04.371.tiq
-1440, RSA01-2024.05.14.16.06.16.606.tiq, RSA02-2024.05.14.16.06.16.364.tiq
-1450, RSA01-2024.05.14.16.07.31.414.tiq, RSA02-2024.05.14.16.07.31.172.tiq
-1460, RSA01-2024.05.14.16.08.43.864.tiq, RSA02-2024.05.14.16.08.43.622.tiq
-1470, RSA01-2024.05.14.16.09.59.912.tiq, RSA02-2024.05.14.16.09.59.670.tiq
-1480, RSA01-2024.05.14.16.11.08.625.tiq, RSA02-2024.05.14.16.11.08.384.tiq
-1490, RSA01-2024.05.14.16.12.12.699.tiq, RSA02-2024.05.14.16.12.12.458.tiq
-1500, RSA01-2024.05.14.16.13.20.061.tiq, RSA02-2024.05.14.16.13.19.820.tiq
-1510, RSA01-2024.05.14.16.14.31.982.tiq, RSA02-2024.05.14.16.14.31.741.tiq
-1520, RSA01-2024.05.14.16.15.30.129.tiq, RSA02-2024.05.14.16.15.29.887.tiq
-1530, RSA01-2024.05.14.16.16.41.026.tiq, RSA02-2024.05.14.16.16.40.784.tiq
-1540, RSA01-2024.05.14.16.17.51.499.tiq, RSA02-2024.05.14.16.17.51.257.tiq
-1550, RSA01-2024.05.14.16.18.49.853.tiq, RSA02-2024.05.14.16.18.49.612.tiq
-1560, RSA01-2024.05.14.16.19.58.297.tiq, RSA02-2024.05.14.16.19.58.054.tiq
-1570, RSA01-2024.05.14.16.21.14.503.tiq, RSA02-2024.05.14.16.21.14.262.tiq
-1580, RSA01-2024.05.14.16.22.29.616.tiq, RSA02-2024.05.14.16.22.29.375.tiq
-1590, RSA01-2024.05.14.16.24.26.365.tiq, RSA02-2024.05.14.16.24.26.124.tiq
-1600, RSA01-2024.05.14.16.25.34.823.tiq, RSA02-2024.05.14.16.25.34.582.tiq
-1610, RSA01-2024.05.14.16.26.43.576.tiq, RSA02-2024.05.14.16.26.43.335.tiq
-1620, RSA01-2024.05.14.16.27.57.633.tiq, RSA02-2024.05.14.16.27.57.391.tiq
-1630, RSA01-2024.05.14.16.28.59.107.tiq, RSA02-2024.05.14.16.28.58.865.tiq
-1640, RSA01-2024.05.14.16.30.03.861.tiq, RSA02-2024.05.14.16.30.03.619.tiq
-1650, RSA01-2024.05.14.16.31.06.942.tiq, RSA02-2024.05.14.16.31.06.701.tiq
-1660, RSA01-2024.05.14.16.32.25.911.tiq, RSA02-2024.05.14.16.32.25.670.tiq
-1670, RSA01-2024.05.14.16.33.46.951.tiq, RSA02-2024.05.14.16.33.46.710.tiq
-1680, RSA01-2024.05.14.16.34.56.720.tiq, RSA02-2024.05.14.16.34.56.479.tiq
-1690, RSA01-2024.05.14.16.36.54.877.tiq, RSA02-2024.05.14.16.36.54.636.tiq
-1700, RSA01-2024.05.14.16.38.06.854.tiq, RSA02-2024.05.14.16.38.06.613.tiq


# Third run:

-1590, RSA01-2024.05.14.16.40.04.235.tiq, RSA02-2024.05.14.16.40.03.994.tiq

here computer crashed.


1. Preliminary result.
Entry  Tue May 14 19:07:27 2024, Shahab, Runs, Broadband measurement / High Sampling rate 
Stable beam after a long time:


from below ones, only the last 4 ones are probably best.

RSA01-2024.05.14.17.36.49.211.tiq
RSA01-2024.05.14.17.38.25.867.tiq
RSA01-2024.05.14.17.38.39.827.tiq
RSA01-2024.05.14.17.38.54.555.tiq
RSA01-2024.05.14.17.39.08.523.tiq

and

RSA02-2024.05.14.17.32.58.640.tiq
RSA02-2024.05.14.17.36.48.947.tiq
RSA02-2024.05.14.17.37.02.258.tiq
RSA02-2024.05.14.17.38.25.603.tiq
RSA02-2024.05.14.17.38.39.587.tiq
RSA02-2024.05.14.17.38.54.315.tiq
RSA02-2024.05.14.17.39.08.283.tiq
Entry  Tue May 14 21:41:11 2024, Shahab, Runs, Test Screenshot 2024-05-14_21-39-01-112_tcl1048.png
 
Entry  Wed May 15 00:26:53 2024, David, Asahi, Shahab, Chris, Ruijiu, Runs, First data file - 00:26 
Centered resonant frequency on 98Mo+42 at the 126 harmonic (243.925 MHz) and 211 harmonic (408.483 MHz).
Recording for 2 seconds (injection start at 10%), injection every 6 seconds. 
Entry  Wed May 15 12:58:12 2024, Beatriz, Min, Shahab, Runs, optimizing the mass resolution 
Yuri and Sergey still optimizing the mass resolution.

From 13:10 to ~ 13:35 SIS energy was increased to 457.4 (~3 MeV/u) to test whether this moves the best isochronicity to 98Mo (we were off before), -> Brho(98Mo)=7.12736 Tm

From ~13:35 back to setting up with the primary beam at 441.95 MeV (with target, same Brho as the 98Mo fragments). It will be attempted to measure the orbit of the beam
Entry  Wed May 15 17:22:43 2024, Jeroen, Shahab, Johan, Runs, 98Mo run 
Beam tuned at 4:50, data acquisition aligned for 98Mo at 4:56.
Entry  Wed May 15 18:37:36 2024, Jeroen, Johan, Shahab, Runs, Beam returned to ESR 2024-05-15_18-37-57-073_tcl1064.png
Beam returned at 18:30:55. Taking data with new triggers.
Entry  Wed May 15 20:40:51 2024, Jeroen, Johan, Runs, Beam returned to ESR 2024-05-15_20-40-22-391_tcl1064.png2024-05-15_22-01-28-310_tcl1064.png
20:39:42 Runs restarted.
Entry  Thu May 16 00:37:41 2024, Boguslaw, Camille, Runs, Injection pattern changed 2024-05-16_00-34-07-585_tcl1064.png2024-05-16_01-53-34-896_tcl1064.png2024-05-16_03-10-00-258_tcl1064.png
The injection pattern changed on Lassie monitor (0:27 AM). (picture 1)

It when back to the previous rate at 1:48 AM. (picture 2)

The same pattern change appeared from 3:01 AM to 3:07 AM. (picture 3) and from 3:24 AM to 3:39 AM.
Entry  Thu May 16 04:37:27 2024, Boguslaw, Camille, Runs, No beam to ESR 2024-05-16_04-38-44-446_tcl1064.png
We had no beam in ESR for about 3 minutes
Entry  Thu May 16 07:25:33 2024, Mayr, Hannes, Runs, Lassie Screenshot 07:23 2024-05-16_07-23-30-208_tcl1064.png
Start of regular screenshots of the Lassie monitor every 1-2 hours.
Entry  Thu May 16 07:50:39 2024, Mayr, Hannes, Runs, Peaks with very high particle rate 2024-05-16_07-49-53-757_tcl1064.png
Peaks in the particle diagram going to unusual high 1.4e9 particles.
Entry  Thu May 16 08:58:39 2024, Mayr, Hannes, Runs, Fluctuations in particle rate 2024-05-16_08-58-00-964_tcl1064.png
Particle rates are fluctuating and increasing from a constant 5e8 to something around 1e9.
Entry  Thu May 16 09:41:56 2024, Mayr, Hannes, Runs, No beam 
No beam from 09:39 to 10:10 due to a setting change. The change aims to increase the measurement time to 10s.
Entry  Thu May 16 10:18:14 2024, Mayr, Hannes, Runs, Beam back, DAQ off 
Beam is back since 10:10, but DAQ is turned off to change the setting there.
Measurements starting at 10:18 are only test runs and should not be used for analysis.
Entry  Thu May 16 11:08:27 2024, Mayr, Hannes, Runs, DAQ running again 
"Real" measurement with good data starting from 11:07 until approximately 13:00.
Measurement time was changed to 10s with injections every 32s.
Entry  Thu May 16 11:13:05 2024, Mayr, Hannes, Runs, Rates 2024-05-16_11-10-57-933_tcl1064.png
With the new timing, the rates now look like can be seen in the screenshot.
Entry  Thu May 16 13:04:02 2024, Mayr, Hannes, Runs, DAQ stopped, change setting to 98Zr 
Beam tuning for 98Zr starting at 12:53, following data should be excluded from analysis. DAQ was stopped around 13:13.
Entry  Thu May 16 16:10:03 2024, Ide, Hubbard, Runs, Lassie Screenshot 2024-05-16_16-08-02-778_tcl1064.png.pdf
Lassie Screenshot taken at 16:09
Entry  Thu May 16 16:38:11 2024, Ide, Hubbard, Runs, No beam to ESR 
because of problems in HHT
no beam from 16:36
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