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New entries since:Thu Jan 1 01:00:00 1970
ID Date Author Category Subject Text Attachments
  21   Fri Mar 27 13:40:54 2020 RaganGeneralNTCap start and shutdown informationThe attachment contains information on how
to start and shutdown NTCap and bridge computer.
 ntcapmanual.pdf 
  22   Fri Mar 27 19:51:37 2020 RaganGeneralESR MachineBy changing the tune to Qx=2.33, Qy=2.36 the
momentum acceptance was significantly improved.
A variation of the cooler voltage of 10300
  
  23   Fri Mar 27 19:59:09 2020 RaganGeneralBeam stacking in ESR is achievedThanks to Sergey and Markus, stacking of primary
H-like 206Pb81+ beam in ESR is achieved.
 8B7F254E-DB10-48B6-9E2E-9CA0FF998C12.MOVstacking.png 
  24   Fri Mar 27 20:05:43 2020 RaganGeneralH2 gas jet readyThanks to Nikos, stable H2 gas jet target
with 10^14 particles/cm^3 is ready.
(More information can be found on: https://ulpc24.gsi.de/cgi-bin/jet.py?gasart=Helium
 BAFA7906-5F66-4108-86F9-6D61573B43CD.MOV 
  25   Fri Mar 27 20:52:31 2020 RaganGeneralPlans for the measurement with 206Pb81+We plan to measure:

1. Lifetime of H-like 206Pb81+ beam with
  
  26   Sat Mar 28 01:14:19 2020 RaganGeneralCross-section for capture and ionisation of 206Pb81+ with H2 target Cross-section for capture and ionisation of
206Pb81+ with H2 gas jet target are calculated
using GLOBAL code.
 GLOBAL.pdf 
  27   Sat Mar 28 04:32:15 2020 RaganDetectorsIonisation events on DSSSDXY co-relation of DSSSD showing 206Pb82+ beam
hitting the CsISiPHOS detector present in
the inner pocket of ESR after the first dipole
 9800D808-D570-466D-8411-512D069F9233.jpeg 
  28   Sat Mar 28 04:50:34 2020 RaganDetectorsMWPCAlex and Pierre-Michel applied 1500 V to the
anode and adjusted the threshold in Messhute.
x1 signal was small & noisy and rest of the
 4475A53F-48AB-430E-8A22-7D92E5FEACBF.jpeg 
  29   Sat Mar 28 11:00:14 2020 Ragan, RuiJiu, Mei, Yuri, TinoDetectorsMovement of detector10:51 am the CsISiPHOS is moved to 65 mm from
60 mm.The spot on the DSSSD is changed by
5 mm which confirms the hit of the beam.
 IMG_20200328_110253.jpgIMG_20200328_110258.jpg 
  30   Sat Mar 28 11:07:49 2020 Ragan, RuiJiu, Tino, GeneralNikos is changing gas jet targetThe gas jet target is now being changed from
H2 to Ar by Nikos.
  
  31   Sat Mar 28 11:20:10 2020 Ragan, RuiJiu, Mei, Yuri, TinoGeneralReducing beam intensity in ESRYuri reduces beam intensity in the ESR to
reduce the countrate on the detectors.
  
  32   Sat Mar 28 11:28:11 2020 Ragan, RuiJiu, Mei, Yuri, TinoGeneralESR openESR is open now   
  33   Sat Mar 28 12:19:21 2020 Ragan, RuiJiuDAQChange of the polarity of AmplifiersSince last night, the signals from the p-side
of all the Si pads were seen as negative
on picoscope.
 7888530B-DE66-4D37-A0A8-933307DD2AB8.MOV 
  34   Sat Mar 28 13:09:11 2020 Mei,Yury, Tino, Ragan, RuijiuGeneralShift planFrom Yury,

For now, measure the beam life time with
  
  35   Sat Mar 28 13:19:56 2020 RaganRunsTemplatebeam: 
energy: 
storage time:
  
  36   Sat Mar 28 14:19:24 2020 Ragan, RuiJiu, Mei, YuriGeneralInstructions to change the electron cooler currentAttached are the instructions on how to change
the electron cooler current for the lifetime
measurements of 206Pb81+ beam (interaction
 instructions.pdf 
  37   Sat Mar 28 15:07:40 2020 ruijiuDAQstart run     
  38   Sat Mar 28 15:19:23 2020 ruijiu start run e121_run_0236.lmdstore 206Pb81+ beam inside ESR and measure
its halflife. 
The HV of detector is off.
  
  39   Sat Mar 28 15:23:05 2020 Alex, Ragan, Mei Bai Generalbeam lifetime measurementWe see two species in the Schottky spectra
during the beam lifetime measurement without
the target. The one (probably the primiary
 15854053877798703970476301545600.jpg 
  40   Sat Mar 28 16:09:50 2020 AlexGeneralno beam in the ESRRagan and Ruijiu went in the ESR for short
time to fix something with the slow control
of the silicon detector.
  
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