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  nuclear two-photon decay 2024, Page 2 of 6  Not logged in ELOG logo
Entry  Sat May 18 14:43:59 2024, Yuri, Accelerator, Reduce intensity, 98Mo42+ 
reduce intensity
eexds2ha 7mm --> 9 mm
e02ds3hg -69 mm -- stays

measure for about 30 min

9 mm was too much, change to +8 mm
Entry  Sat May 18 13:13:45 2024, Yuri, Taka, Xinliang, Sophia, Yuanming, Ragan, Shahab , Calibration, Shorter shots with 98 Mo 
now making shorter shots with 98-Mo
3 seconds each
50 MSPS

98Mo
13:57  RSA01-2024.05.18.13.57.32.674.tiq, RSA02-2024.05.18.13.57.32.472.tiq
13:58 RSA01-2024.05.18.13.58.32.760.tiq, RSA02-2024.05.18.13.58.32.552.tiq
14:00 RSA01-2024.05.18.14.00.23.759.tiq, ../RSA02/RSA02-2024.05.18.14.00.23.551.tiq
14:01 RSA01-2024.05.18.14.01.09.543.tiq, ../RSA02/RSA02-2024.05.18.14.01.16.038.tiq
14:01 RSA01-2024.05.18.14.01.54.049.tiq, ../RSA02/RSA02-2024.05.18.14.02.05.544.tiq 


last long shot :
14:05 RSA01-2024.05.18.14.05.14.375.tiq, ../RSA02/RSA02-2024.05.18.14.08.54.672.tiq

1 second each 


RSA01-2024.05.18.14.08.54.879.tiq
Entry  Sat May 18 13:07:23 2024, Yuri, Taka, Xinliang, Sophia, Yuanming, Ragan, Shahab , DAQ, Long measurements 100-Mo 
Primary beam two shots, each 10 seconds 

13:06 --> RSA01-2024.05.18.13.05.41.969.tiq, ../RSA02/RSA02-2024.05.18.13.05.42.662.tiq
13:08 --> RSA01-2024.05.18.13.08.41.929.tiq, ../RSA02/RSA02-2024.05.18.13.08.42.621.tiq

for checking Markus hypothesis about the longevity of the bunched beam due to the ISO mode. This is important to understand lifetime measurements in ISO mode, otherwise the information might be affected.
Entry  Sat May 18 12:31:45 2024, Yuri, Taka, Xinliang, Sophia, Yuanming, Ragan, Shahab, Detectors, Cooler Curve measurements 
Cooler curve measurement, Primary Beam 100 Mo

center Freqs:
243.26875 MHz
408.03925 MHz

Running 13 harmonics
25 MHz
50 MSPS
1 sec

First injection:

-650, RSA01-2024.05.18.12.32.51.008.tiq, RSA02-2024.05.18.12.32.50.799.tiq
-700, RSA01-2024.05.18.12.34.53.819.tiq, RSA02-2024.05.18.12.34.53.611.tiq
-800, RSA01-2024.05.18.12.36.50.332.tiq, RSA02-2024.05.18.12.36.50.123.tiq
-1000, RSA01-2024.05.18.12.37.56.219.tiq, RSA02-2024.05.18.12.37.56.011.tiq
-1100, RSA01-2024.05.18.12.39.29.003.tiq, RSA02-2024.05.18.12.39.28.795.tiq
-1200, RSA01-2024.05.18.12.41.22.539.tiq, RSA02-2024.05.18.12.41.22.331.tiq
-1300, RSA01-2024.05.18.12.42.28.763.tiq, RSA02-2024.05.18.12.42.28.554.tiq
-1400, RSA01-2024.05.18.12.43.33.203.tiq, RSA02-2024.05.18.12.43.32.995.tiq
-1500, RSA01-2024.05.18.12.45.11.816.tiq, RSA02-2024.05.18.12.45.11.608.tiq


New injection:

uncoooled beam: RSA01-2024.05.18.12.49.09.850.tiq, RSA02-2024.05.18.12.49.09.642.tiq


-650, RSA01-2024.05.18.12.50.20.059.tiq, RSA02-2024.05.18.12.50.19.851.tiq
-650 (longer wait), RSA01-2024.05.18.12.52.37.936.tiq, RSA02-2024.05.18.12.52.37.728.tiq
-600, RSA01-2024.05.18.12.53.55.915.tiq, RSA02-2024.05.18.12.53.55.706.tiq
-500, RSA01-2024.05.18.12.55.31.146.tiq, RSA02-2024.05.18.12.55.30.938.tiq
-400, RSA01-2024.05.18.12.56.48.690.tiq, RSA02-2024.05.18.12.56.48.482.tiq
-300, RSA01-2024.05.18.12.58.16.906.tiq, RSA02-2024.05.18.12.58.16.698.tiq
-200, RSA01-2024.05.18.12.59.44.098.tiq, RSA02-2024.05.18.12.59.43.890.tiq
-100, RSA01-2024.05.18.13.00.38.088.tiq, RSA02-2024.05.18.13.00.37.880.tiq
0, RSA01-2024.05.18.13.01.28.466.tiq, RSA02-2024.05.18.13.01.28.258.tiq
Entry  Sat May 18 02:22:30 2024, Helmut Weick, Accelerator, paper log book pages 17.05.2024 IMG_20240518_021647.jpgIMG_20240518_021654.jpgIMG_20240518_032227.jpg
until we lost the beam in the night.
Entry  Sat May 18 02:04:38 2024, Yoshi, Ohnishi, DAQ, RSA01 run 
RSA01 was stopped from 19:25, it restart now.
Entry  Sat May 18 01:57:44 2024, Weick, Accelerator, 96Sr isoc setting TEline-ESR-100Mo_96Sr.lpp
We fist verified the ESR after a crash with the 98Zr setting, was fine good resolution, 
then we scaled to 96Sr directly at gamma_t not with shift as before.
E_SIS        = 449.21 MeV/u for 100Mo 38+
after target = 373.36 MeV/u for  96Sr 38+ 
in ESR       = 373.60 MeV/u for  96Sr 38+
in the LISE calculation this leads to gamma = 1.40082 as before in the other settings.
yield is very low now, but some lines.
Entry  Sat May 18 00:37:52 2024, Helmut, Wolfram, Shahab, David, Xinliang, Runs, SIS beam gone 
 
Entry  Sat May 18 00:37:21 2024, Helmut, Wolfram, Shahab, David, Xinliang, Runs, Trying to get back to Zr setting 
 
Entry  Sat May 18 00:15:44 2024, Yoshi, Ohnishi, General, Beam back 2024-05-18_00-16-05-529_tcl1064.png2024-05-18_00-20-39-639_tcl1064.png
Beam is back, but it stopped again at 0:17......
Entry  Sat May 18 00:06:56 2024, Shahab, Runs, HHT people out again 
we try to re run the ESR. ESR behaves very strangely. Something not so right.
Entry  Fri May 17 23:30:16 2024, Shahab, General, HHT people inside 
no beam since about one hour, also HHT people inside since about 10 min.
Entry  Fri May 17 23:14:51 2024, Yoshi, Ohnishi, General, shift started 2024-05-17_23-15-51-921_tcl1064.png2024-05-17_23-18-18-714.png
Just test
Entry  Fri May 17 22:48:14 2024, Jelena B, Accelerator, Back to old setting 
We go back to the Zr-settings to make a deffinite state of ESR and we move again to previous setting (Sr) 
Entry  Fri May 17 22:43:11 2024, Jelena B, Zsolt P., Accelerator, ESR_e.cooler are back ESR_back_with_e.cooler.png
We have back ESR and we have a fixed issue with a cooler. 

Beam issues! 
Entry  Fri May 17 22:38:30 2024, Jelena B, Zsolt P., , ESR + e.cooler are back 
We have back ESR and fixed issue with a cooler. 
Entry  Fri May 17 22:06:05 2024, Jelena B, Zsolt P., Accelerator, ESR ESR_down.png
ESR is down
Entry  Fri May 17 21:56:58 2024, Jelena B, Zsolt P., Accelerator, Optimizing setting 
We are optimizing setting for 96Sr
start time: 21:52
Entry  Fri May 17 21:44:39 2024, Jelena B, Zsolt P., General, Beam issues 
We do not have beam, and we have some instability during last 1-1.5 hour. 
Entry  Fri May 17 20:33:43 2024, Jelena B, Zsolt P., General, Beam returned to FRS 
We have again beam at FRS..
But we are taking still cycles on a same way as before...and discussing to go back to the old zirconium setting 

In one hour HHT will enter the cave. 
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