HOME ESR EXPERIMENTS LABS etc
E121 E127 E132 E125 E143 laser_cooling_2021 E142 Ê128 E146 E0052 E0018 E0028
  nuclear two-photon decay 2024, Page 2 of 6  Not logged in ELOG logo
ID Date Author Category Subject
  94   Sat May 18 14:43:59 2024 YuriAcceleratorReduce 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
  93   Sat May 18 13:13:45 2024 Yuri, Taka, Xinliang, Sophia, Yuanming, Ragan, Shahab CalibrationShorter 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
  92   Sat May 18 13:07:23 2024 Yuri, Taka, Xinliang, Sophia, Yuanming, Ragan, Shahab DAQLong 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.
  91   Sat May 18 12:31:45 2024 Yuri, Taka, Xinliang, Sophia, Yuanming, Ragan, ShahabDetectorsCooler 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
  90   Sat May 18 02:22:30 2024 Helmut WeickAcceleratorpaper log book pages 17.05.2024
until we lost the beam in the night.
  89   Sat May 18 02:04:38 2024 Yoshi, OhnishiDAQRSA01 run
RSA01 was stopped from 19:25, it restart now.
  88   Sat May 18 01:57:44 2024 WeickAccelerator96Sr isoc setting
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.
  87   Sat May 18 00:37:52 2024 Helmut, Wolfram, Shahab, David, XinliangRunsSIS beam gone
  86   Sat May 18 00:37:21 2024 Helmut, Wolfram, Shahab, David, XinliangRunsTrying to get back to Zr setting
  85   Sat May 18 00:15:44 2024 Yoshi, OhnishiGeneralBeam back
Beam is back, but it stopped again at 0:17......
  84   Sat May 18 00:06:56 2024 ShahabRunsHHT people out again
we try to re run the ESR. ESR behaves very strangely. Something not so right.
  83   Fri May 17 23:30:16 2024 ShahabGeneralHHT people inside
no beam since about one hour, also HHT people inside since about 10 min.
  82   Fri May 17 23:14:51 2024 Yoshi, OhnishiGeneralshift started
Just test
  81   Fri May 17 22:48:14 2024 Jelena BAcceleratorBack 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) 
  80   Fri May 17 22:43:11 2024 Jelena B, Zsolt P.AcceleratorESR_e.cooler are back
We have back ESR and we have a fixed issue with a cooler. 

Beam issues! 
  Draft   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. 
  78   Fri May 17 22:06:05 2024 Jelena B, Zsolt P.AcceleratorESR
ESR is down
  77   Fri May 17 21:56:58 2024 Jelena B, Zsolt P.AcceleratorOptimizing setting
We are optimizing setting for 96Sr
start time: 21:52
  76   Fri May 17 21:44:39 2024 Jelena B, Zsolt P.GeneralBeam issues
We do not have beam, and we have some instability during last 1-1.5 hour. 
  75   Fri May 17 20:33:43 2024 Jelena B, Zsolt P.GeneralBeam 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. 
ELOG V3.1.5-fc6679b