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  nuclear two-photon decay, Page 3 of 12  Not logged in ELOG logo
Entry  Tue Jun 29 21:12:15 2021, Kanika, Shahab, Runs, Moving the resonance frequency of the 245 MHz resonator  e143_resonance_change_2.PNG
moving in the plungers:

before: 400
after: 200
Entry  Tue Jun 29 21:15:01 2021, Kanika, Shahab, Runs, lost beam problem Unilac 
cooling water in UNILAC is out
Entry  Wed Jun 30 01:38:20 2021, Shahab, Runs, beam is back from Linac but not in the ESR 
 
Entry  Wed Jun 30 02:12:46 2021, Shahab, Runs, still no beam in ESR: quadrupole magnets are down 
still no beam in ESR: quadrupole magnets are down
Entry  Wed Jun 30 13:04:40 2021, Shahab, Runs, 245 Amplifier on amplification_on245.png
turned on extra 20dB amplifier for the 245 Resonator around 12:32 
Entry  Wed Jun 30 15:21:44 2021, Shahab, Runs, data synch on WWW server 
Data is being shared on the WWW server.
Time difference between the analyzers is in order of seconds:

time stamp of the 245MHz data is leading those of 410MHz by 21.733 [s]
Entry  Wed Jun 30 19:59:39 2021, Shahab, Runs, Scraper positions 
current scraper positions suggested by Sergey:

GEEXDS2HA = -11mm
GE01DS-H (innen) = -58mm
Entry  Thu Jul 1 16:47:15 2021, Andrew Nic, Runs, Frequency shift 
The freqency suddenly shifted at time 16:11:47 and remained shifted until now 

The ESR status in the monitor stayed blue. No obvious sign that a magnet was down. The operators are checking

Sergey telephoned, he is also not sure but suggests stopping starting the ESR. We will wait for Yuri
    Reply  Thu Jul 1 17:01:43 2021, Jacobus, Runs, Frequency shift 245MHz-2021.07.01.16.12.03.686.tiq.png
> The freqency suddenly shifted at time 16:11:47 and remained shifted until now 
> 
> The ESR status in the monitor stayed blue. No obvious sign that a magnet was down. The operators are checking
> 
> Sergey telephoned, he is also not sure but suggests stopping starting the ESR. We will wait for Yuri

In attachment, the moment when the shift occurred. 
Entry  Thu Jul 1 18:07:10 2021, Shahab, Runs, settings of the analyzers after changing the trigger position asd.jpgasd2.jpg
 
Entry  Thu Jul 1 18:49:59 2021, Shahab, Runs, possible isomer? possible_isomer.png
 
Entry  Thu Jul 1 18:56:49 2021, Shahab, Runs, Short interruption in recording  
DAQs and NTCAP
Entry  Thu Jul 1 19:24:59 2021, Nic Andrew Shahab, Runs, Start of data taking again 
410 MHz resolution and power optimised


Last files before the restart were
245Mhz-2021.07.01.18.48.31.725.tiq
410MHz-2021.07.01.18.48.07.516.tiq
Entry  Thu Jul 1 21:35:32 2021, Shahab, Runs, some pics after 15dB amplification on 410 asd.png821.png
 
Entry  Thu Jul 1 23:07:47 2021, IK, KK, Runs, source 
The change of the source happens now
Entry  Thu Jul 1 23:38:55 2021, IK, KK, Runs, Change of gas bottle 
The gas bottle has been changed and the beam is back.
Entry  Fri Jul 2 01:39:51 2021, IK, KK, Runs, drop of intensity 
We see a drop in beam intensity from 7E9 to 2E8 between 01:30 and 01:43
Entry  Fri Jul 2 03:10:03 2021, IK, KK, Runs, drop of intensity 
We see that intensity stabalized at 9E8 which is smaller then before. 
We neticed this at 2:50, keep observing.
Entry  Fri Jul 2 03:19:49 2021, IK, KK, Runs, drop of intensity 
And the intensity is back again to 5E9 at 03:20
Entry  Fri Jul 2 14:18:04 2021, Pavlos, Alexandre, Runs, Change of the measurment to 72Br 
Both resonators will now be retuned to look for the isomeric state in 72Br.

Last files for 70Se are:
245MHz-2021.07.02.14.17.14.507.tiq
410MHz-2021.07.02.14.16.48.528.tiq
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