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  Bound beta decay experiment on Tl-205, Page 7 of 9  Not logged in ELOG logo
Entry  Mon Apr 20 11:17:18 2020, Ragan, General, Logbook logbook.pdfcombined_FRS.pdfcombined_data.pdf
 
Entry  Sun Mar 29 21:39:27 2020, ruijiu, Analysis, Ionization cross section and capture cross section for h-206Pb + Ar 202003292141.png
Ionization cross section = 1320 barn.
Capture cross section = 557+137+44.5=735.5.
sigma_Ion/sigma_cap=1.79
Entry  Sat Mar 28 04:32:15 2020, Ragan, Detectors, Ionisation events on DSSSD 9800D808-D570-466D-8411-512D069F9233.jpeg
XY co-relation of DSSSD showing 206Pb82+ beam hitting the CsISiPHOS detector present in the inner pocket of ESR after the first dipole after the gas jet.
206Pb82+ is 
produced by ionisation of 
Entry  Sat Mar 28 14:19:24 2020, Ragan, RuiJiu, Mei, Yuri, General, Instructions to change the electron cooler current instructions.pdf
Attached are the instructions on how to change the electron cooler current for the lifetime measurements of 206Pb81+ beam (interaction with residual gas
and electron cooler).
Entry  Sat Apr 4 03:06:12 2020, Ragan, General, Instructions if electron cooler goes off during long storage time measurements electron_cooler.pdf
Please read the attachment.
Entry  Mon Mar 30 12:12:25 2020, ruijiu, General, Instruction of NTCAP for shift person Instruction_of_NTCAP_for_shift_person.png
To start a new run with NTCap, we need to retart NTCAP. 
1. Stop labview program. 
2. Start labview program and start a new run.
Entry  Tue Feb 25 15:48:31 2020, ruijiu chen, DAQ, Important folders of e121 eperiments: 
1. slow control:
1.1. program file:
litv-exp@ringpi:~/epics/mrcc_ioc/db $ 
Entry  Thu Apr 2 15:24:15 2020, Ragan, General, How to know whether electron cooling is working IMG_8238.JPGIMG_8239.JPG
For Alle and Kuehler the bottom left status should look like as shown in pictures below.
Entry  Sun Apr 5 20:23:02 2020, Ragan, Alex, Esther, Runs, Half-hour measurement (S2: 0/35 mm and S6: -20/7 mm) 7x
beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 0.5 hr
Entry  Sun Apr 5 21:50:02 2020, Ragan, Alex, Esther, Runs, Half-hour measurement (S2: 0/35 mm and S6: -20/7 mm) 7x
beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 0.5 hr
Entry  Fri Apr 3 00:39:07 2020, Ragan, Pierre-Michel, Dima, Runs, Half hour measurement (S2: 0/35 mm) CC419497-E2AA-4C71-92AD-7F282775FFC2.jpegAB10D6CB-87FC-4D9E-9AF0-AA9279D62066.jpeg
beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 0.5 hr
Entry  Fri Apr 3 03:19:46 2020, Ragan, Pierre-Michel, Dima, Runs, Half hour measurement (S2: 0/35 mm) FD4F77A6-57C8-40EE-A5D6-B8E84D87C0EF.jpegD9AB6DAC-8CB1-4AA6-8D65-EF0BEB1BC913.jpeg7ECADF49-BD0A-4AB0-82E3-8825C08C81E3.jpeg
beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 0.5 hr
Entry  Fri Apr 3 06:35:37 2020, Ragan, Pierre-Michel, Dima, Mei, Shahab, Runs, Half hour measurement (S2: 0/35 mm) A04655E8-EF30-4ECB-A6F4-2B98982502FA.jpegAE7CF1AD-0E03-45AA-8234-D36D34E85252.jpeg95BAD6CD-5C2E-4B93-8CE5-0F7F6E62B4FA.jpeg
beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 0.5 hr
Entry  Fri Apr 3 12:02:32 2020, Ragan, Mei, Shahab, Runs, Half hour measurement (S2: 0/35 mm) 44FE81B4-D167-4B4D-9E6E-D0C54CD79F23.jpeg6FFE01F8-FC91-4A7A-A8E0-52BFC068DD27.jpeg19EBC2DF-C029-4655-A697-7CD69C6E4ADF.jpeg68740E5C-468F-476A-9D81-FC3D4995D61E.jpeg
beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 0.5 hr
Entry  Sat Apr 4 00:11:23 2020, Ragan, Pierre-Michel, Dima, Runs, Half hour measurement (S2: 0/35 mm and S6: -20/7 mm) 55E962C4-6891-44E5-937B-5D11AC0FEFCD.jpeg9F371840-1E58-45D2-9EF9-273D72C28626.jpeg
beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 0.5 hr
Entry  Mon Mar 30 13:40:57 2020, ruijiu, Detectors, HV of Inner detector IMG_20200330_133909.jpg
 
Entry  Mon Mar 30 13:41:20 2020, ruijiu, Detectors, HV of Inner detector IMG_20200330_133909.jpg
 
Entry  Fri Mar 27 20:05:43 2020, Ragan, General, H2 gas jet ready BAFA7906-5F66-4108-86F9-6D61573B43CD.MOV
Thanks 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 )
Entry  Sun Mar 29 12:56:02 2020, Ragan, RuiJiu, General, Good positive signals from MSCF E1DF3452-4051-4EFF-ADC2-519389D0E60F.MOV
As we (RuiJiu and me) changed the jumpers of MSCF 1, 2,3 and 4 yesterday, now we see nice positive signals on picoscope.
Yuri and Sergey are still working on optimising the Tl fragments !
Entry  Wed Jan 29 10:42:42 2020, Shahab, General, Gas target control with the new control system event IMG_20200128_153508.jpgIMG_20200128_145345.jpgIMG_20200128_145340.jpgIMG_20200128_145307.jpgIMG_20200128_144555.jpg

Many thanks to Sergey and Nikos we have tested the connection of the new control system for turning on and off of the gas target.
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