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  Bound beta decay experiment on Tl-205, Page 7 of 9  Not logged in ELOG logo
Entry  Mon Mar 30 10:32:01 2020, Tino, Runs, Second measurement with 206Pb81+ beam at I_cooler = 10 mA  


I_cooler = 10 mA
Entry  Mon Mar 30 10:57:43 2020, Tino, Runs, Second measurement with 206Pb81+ beam at I_cooler = 10 mA  


I_cooler = 10 mA
Entry  Mon Mar 30 12:16:04 2020, Tino, Runs, Second measurement with 206Pb81+ beam at I_cooler = 10 mA  


I_cooler = 10 mA
Entry  Mon Mar 30 12:33:04 2020, Tino, Runs, Second measurement with 206Pb81+ beam at I_cooler = 10 mA  


I_cooler = 10 mA
Entry  Mon Mar 30 13:02:49 2020, Tino, Runs, Second measurement with 206Pb81+ beam at I_cooler = 10 mA  


I_cooler = 10 mA
Entry  Mon Mar 30 13:31:58 2020, Tino, Runs, Second measurement with 206Pb81+ beam at I_cooler = 10 mA  


I_cooler = 10 mA
Entry  Mon Mar 30 14:02:41 2020, Tino, Runs, Second measurement with 206Pb81+ beam at I_cooler = 10 mA  


I_cooler = 10 mA
Entry  Tue Mar 31 00:47:18 2020, Yuri, Runs, S2 slits 0/+35 mm, target bump +13 mm 
Run start: 0276.lmd
Entry  Tue Mar 31 23:31:41 2020, Shahab, Runs, alpha_p calibration ap_calibration.jpg
Vc = 212849.9349
Ic = 0.2
Entry  Thu Apr 2 02:38:32 2020, Ragan, Yuri, Sergey, Esther, Oliver, Runs, First measurement with zero storage time 
beam: 205Tl81+ (with no scraping)
energy: 400 MeV/u
storage time: zero
Entry  Thu Apr 2 02:46:57 2020, Ragan, Yuri, Sergey, Esther, Oliver, Runs, Measurement with 2 hrs storage time E682FBC9-1374-4582-8202-C8AA5DC8E6D5.jpeg


Entry  Thu Apr 2 05:00:44 2020, Ragan, Esther, Oliver, Runs, Second measurement with 2 hrs storage time 734CA93E-95FD-4C6E-8E90-8DCD961E4352.jpeg
Electron cooler was off here. Thus, this measurement is not what we needed.
(in the picture below, it can be seen that the beam is not cooled)
Entry  Thu Apr 2 06:25:13 2020, Ragan, Runs, Template 
beam: 205Tl81+ (no scraping)
energy: 400 MeV/u
storage time: ___ hrs
Entry  Thu Apr 2 07:01:32 2020, Ragan, Esther, Oliver, Runs, Measurement with 4 hrs storage time 
beam: 205Tl81+ (no scraping)
energy: 400 MeV/u
storage time: 4 hrs
Entry  Thu Apr 2 09:21:19 2020, Ruijiu, Runs, 2nd measurement with 2 hrs storage time (repeat) IMG_20200402_092631.jpg
Because the electron cooler was not switched on during beam accumulation in the previous measurement, we repeat this measurement again.
(In the picture below, it can be seen that the beam cooled. On right most is the Tl beam and rest are the contaminants.)
Entry  Thu Apr 2 21:03:40 2020, Ragan, Yuri, Sergey, Nikos, Runs, Zero hour measurement (S2:-10/35 mm) 
beam: 205Tl81+ (no scraping, Al ~1g/cm2)
energy: 400 MeV/u
storage time: zero hrs
Entry  Thu Apr 2 21:10:57 2020, Ragan, Yuri, Sergey, Nikos, Runs, One hour measurement (S2:-10/35 mm) 
beam: 205Tl81+ (no scraping, Al ~1g/cm2)
energy: 400 MeV/u
storage time: 1 hrs
Entry  Thu Apr 2 21:12:39 2020, Ragan, Nikos, Pierre-Michel, Dima, Runs, Three hour measurement (S2: 0/35 mm) 46CBD7E3-0AF1-447C-847E-31BA5224684D.jpeg7A404038-88E9-4CAF-91E3-A26A0F8A51EF.jpeg
beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 3 hrs
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 01:22:13 2020, Ragan, Pierre-Michel, Dima, Runs, One hour measurement (S2: 0/35 mm) 8E469F1D-992F-4E96-A30A-022B0D1A0E5A.jpeg
beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 1 hr
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