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  Bound beta decay experiment on Tl-205, Page 7 of 9  Not logged in ELOG logo
ID Date Author Category Subject
  124   Thu Apr 2 21:12:39 2020 Ragan, Nikos, Pierre-Michel, DimaRunsThree hour measurement (S2: 0/35 mm)
beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 3 hrs
S2: 0/35 mm

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 19:05 , first file: run0292.lmd 
file running: 0295.lmd

_______________________________________________________________________________

time when accumulation starts: 20:37
time when storage starts: 20:51
time when storage ends: 23:51
I_cooler during storage time: -1 mA

I_cooler =  177 mA


I_SIS: 1.75e9      
ESR particles after stacking: 2e6 (offset 1e5)
Number of stackings: 30
Target ON density: 3.48e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 5 mins
(i.e. time for which electron cooler is on after gas jet) 


NTCAp file:
SC_2020-04-02_19-10-21
\IQ_2020-04-02_19-10-14
IQ rate: 8 MS/s
(saved in drive : p)

copy and repeat the above (below the line) for every storage time measurement
  125   Fri Apr 3 00:39:07 2020 Ragan, Pierre-Michel, DimaRunsHalf hour measurement (S2: 0/35 mm)
beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 0.5 hr
S2: 0/35 mm

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 19:05 , first file: run0292.lmd 
file running: 0295.lmd

_______________________________________________________________________________

time when accumulation starts: 12:08
time when storage starts: 12:25
time when storage ends: 12:55
I_cooler during storage time: -1 mA

I_cooler =  177 mA


I_SIS: 2e9      
ESR particles after stacking: 8.2e5 (offset 1e5)
Number of stackings: 9
Target ON density: 3.45e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 3 mins
(i.e. time for which electron cooler is on after gas jet) 


NTCAp file:
SC_2020-04-02_19-10-21
\IQ_2020-04-02_19-10-14
IQ rate: 8 MS/s
(saved in drive : p)

copy and repeat the above (below the line) for every storage time measurement
  126   Fri Apr 3 01:22:13 2020 Ragan, Pierre-Michel, DimaRunsOne hour measurement (S2: 0/35 mm)
beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 1 hr
S2: 0/35 mm

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 19:05 , first file: run0292.lmd 
file running: 0295.lmd

_______________________________________________________________________________

time when accumulation starts: 01:09
time when storage starts: 01:20
time when storage ends: 02:20
I_cooler during storage time: -1 mA

I_cooler =  174 mA


I_SIS: 1.8e9      
ESR particles after stacking: 2.5e6 (offset 1e5)
Number of stackings: 30
Target ON density: 3.48e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 5 mins
(i.e. time for which electron cooler is on after gas jet) 


NTCAp file:
SC_2020-04-02_19-10-21
\IQ_2020-04-02_19-10-14
IQ rate: 8 MS/s
(saved in drive : p)

copy and repeat the above (below the line) for every storage time measurement
  127   Fri Apr 3 03:18:06 2020 Ragan, Pierre-Michel, DimaRunsZero hour measurement (S2: 0/35 mm)
beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 0 hr
S2: 0/35 mm

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 19:05 , first file: run0292.lmd 
file running: 0298.lmd

_______________________________________________________________________________

time when accumulation starts: 02:36
time when storage starts: 02:47
time when storage ends: 02:47
I_cooler during storage time: -1 mA

I_cooler =  175 mA


I_SIS: 2e9      
ESR particles after stacking: 2.7e6 (offset 1e5)
Number of stackings: 30
Target ON density: 3.49e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 3 mins
(i.e. time for which electron cooler is on after gas jet) 


NTCAp file:
SC_2020-04-02_19-10-21
\IQ_2020-04-02_19-10-14
IQ rate: 8 MS/s
(saved in drive : p)

copy and repeat the above (below the line) for every storage time measurement
  128   Fri Apr 3 03:19:46 2020 Ragan, Pierre-Michel, DimaRunsHalf hour measurement (S2: 0/35 mm)
beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 0.5 hr
S2: 0/35 mm

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 19:05 , first file: run0292.lmd 
file running: 0298.lmd

_______________________________________________________________________________

time when accumulation starts: 03:00
time when storage starts: 03:12
time when storage ends: 03:42
I_cooler during storage time: -1 mA

I_cooler =  175 mA


I_SIS: 1.8e9      
ESR particles after stacking: 2.4e6 (offset 1e5)
Number of stackings: 30
Target ON density: 3.5e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 :  3 mins
(i.e. time for which electron cooler is on after gas jet) 


NTCAp file:
SC_2020-04-02_19-10-21
\IQ_2020-04-02_19-10-14
IQ rate: 8 MS/s
(saved in drive : p)

copy and repeat the above (below the line) for every storage time measurement
  129   Fri Apr 3 03:59:14 2020 Ragan, Pierre-Michel, DimaRunsTwo hour measurement (S2: 0/35 mm)
beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 2 hr
S2: 0/35 mm

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 04:13,  run0300.lmd 
file running: 0300.lmd

_______________________________________________________________________________

time when accumulation starts: 04:21
time when storage starts: 04:32
time when storage ends: 06:32
I_cooler during storage time: -1 mA

I_cooler =  179 mA


I_SIS: 1.75e9      
ESR particles after stacking: 2.1e6 (offset 1e5)
Number of stackings: 30
Target ON density: 3.66e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 7 mins
(i.e. time for which electron cooler is on after gas jet) 


NTCAp file:
SC_2020-04-03_04-17-44
\IQ_2020-04-03_04-17-51
IQ rate: 8 MS/s
(saved in drive : p)

copy and repeat the above (below the line) for every storage time measurement
  130   Fri Apr 3 04:36:21 2020 Ragan, Pierre-Michel, DimaGeneralElectron cooler problem which was then solved
04:09 Electron cooler had some problem when we were stacking for 2 hours measurement.
04:20 GECEBG2T and GECEBG5T were Reset and then Switched on. Electron cooler started working again
  131   Fri Apr 3 06:35:37 2020 Ragan, Pierre-Michel, Dima, Mei, ShahabRunsHalf hour measurement (S2: 0/35 mm)
beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 0.5 hr
S2: 0/35 mm

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 04:13,  run0300.lmd 
file running: 0301.lmd

_______________________________________________________________________________

time when accumulation starts: 06:50
time when storage starts: 07:01
time when storage ends: 11:01
I_cooler during storage time: -1 mA

I_cooler =  179 mA


I_SIS: 1.75e9      
ESR particles after stacking: 2.1e6 (offset 1e5)
Number of stackings: 30
Target ON density: 3.66e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 8 mins
(i.e. time for which electron cooler is on after gas jet) 


NTCAp file:
SC_2020-04-02_04-17-44
\IQ_2020-04-02_19-04-17-51
IQ rate: 8 MS/s
(saved in drive : p)

copy and repeat the above (below the line) for every storage time measurement
  132   Fri Apr 3 10:06:15 2020 ShahabRunsPlots from Scopes
Just two plots from the scopes for documentation:

magnets.png:

yellow: dipole
green and blue: quadrupoles
red: ESR current


kicker.png:

blue: SIS kicker
yellow: ESR kicker

green: SIS current
red: ESR current

trigger: SIS Kicker
  133   Fri Apr 3 11:52:27 2020 ShahabRunsStacking 54 times!
  134   Fri Apr 3 11:59:50 2020 Ragan, Pierre-Michel, DimaRunsFour hour measurement (S2: 0/35 mm)
beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 4 hr
S2: 0/35 mm

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 04:13,  run0300.lmd 
file running: 0301.lmd

_______________________________________________________________________________

time when accumulation starts: 06:50
time when storage starts: 07:01
time when storage ends: 11:01
I_cooler during storage time: -1 mA

I_cooler =  179 mA


I_SIS: 1.75e9      
ESR particles after stacking: 2.3e6 (offset 1e5)
Number of stackings: 30
Target ON density: 3.3e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 5 mins
(i.e. time for which electron cooler is on after gas jet) 


NTCAp file:
SC_2020-04-03_04-17-44
\IQ_2020-04-03_04-17-51
IQ rate: 8 MS/s
(saved in drive : p)

copy and repeat the above (below the line) for every storage time measurement
  135   Fri Apr 3 12:02:32 2020 Ragan, Mei, ShahabRunsHalf hour measurement (S2: 0/35 mm)
beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 0.5 hr
S2: 0/35 mm

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 11:17,  run0303.lmd 
file running: 0303.lmd

_______________________________________________________________________________

time when accumulation starts: 11:19
time when storage starts: 11:46
time when storage ends: 12:16
I_cooler during storage time: -1 mA

I_cooler =  177 mA


I_SIS: 2e9      
ESR particles after stacking: 3.2e6 (offset 5e5)
Number of stackings: 54   (was set for 60 but we missed a few)
Target ON density: 3.66e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 23 mins (as Shahab wanted to record data with 400 MHz schottky)
(i.e. time for which electron cooler is on after gas jet) 


NTCAp file:
SC_2020-04-03_11-20-14
\IQ_2020-04-03_11-20-05
IQ rate: 8 MS/s
(saved in drive : p)

copy and repeat the above (below the line) for every storage time measurement
  136   Fri Apr 3 13:21:16 2020 Ragan, Mei, ShahabRunsZero hour measurement (S2: 0/35 mm)
beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 0 hr
S2: 0/35 mm

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 11:17,  run0303.lmd 
file running: 0304.lmd

_______________________________________________________________________________

time when accumulation starts: 12:58
time when storage starts: 13:16
time when storage ends: 13:16
I_cooler during storage time: -1 mA

I_cooler =  176 mA


I_SIS: 2e9      
ESR particles after stacking: 2.4e6 (offset 5e5)
Number of stackings: 38   (was set for 60 but we missed a few)
Target ON density: 3.54e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 2 mins
(i.e. time for which electron cooler is on after gas jet) 


NTCAp file:
SC_2020-04-03_11-20-14
\IQ_2020-04-03_11-20-05
IQ rate: 8 MS/s
(saved in drive : p)

copy and repeat the above (below the line) for every storage time measurement
  137   Fri Apr 3 13:39:58 2020 Ragan, Mei, Shahab, LaszloRunsEight hour measurement (S2: 0/35 mm)
beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 8 hr
S2: 0/35 mm

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 11:17,  run0303.lmd 
file running: 0306.lmd

_______________________________________________________________________________

time when accumulation starts: 13:32
time when storage starts: 13:51
time when storage ends: 21:51
I_cooler during storage time: -1 mA

I_cooler =  179 mA


I_SIS: 2e9      
ESR particles after stacking: 3e6 (offset 0)
Number of stackings: 50   
Target ON density: 3.95e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 5 mins
(i.e. time for which electron cooler is on after gas jet) 

at 18:30 (start was at 13:51) the stored particles: I_ESR = 1.7e6
at 19:00 the stored particles: I_ESR = 1.6e6
at 19:30 the stored particles: I_ESR = 1.48e6
at 20:00 the stored particles: I_ESR = 1.5e6
at 20:30 the stored particles: I_ESR = 1.4e6
at 21:00 the stored particles: I_ESR = 1.34e6
at 21:30 the stored particles: I_ESR = 1.34e6


NTCAp file:
SC_2020-04-03_11-20-14
\IQ_2020-04-03_11-20-05
IQ rate: 8 MS/s
(saved in drive : p)

copy and repeat the above (below the line) for every storage time measurement
  138   Fri Apr 3 14:08:41 2020 ShahabRunsStacking
  139   Fri Apr 3 17:55:13 2020 ShahabRunsNice picture from 205-Tl
In this high contrast Schottky recording, the main three frequency peaks are resolved w.r.t. time from left to right:

203 Hg 80 +, 200 Hg 79+ and 205 Tl 81+

There are also some spurs visible, whose nature is not 100% sure. One possible explanation can be:

Since this is taken during the storage time (gas target still off), we have no separation between parent and daughter ions, the daughter 205 Pb 81+ basically has the same revolution frequency as parent. It is a possibility that after the decay, daughter ions are slowly cooled back to the nominal frequency. Daughter ions are highly charged and have a high velocity, so single ion sensitivity is expected. They come from all directions, but Schottky measures only the longitudinal plane. Symmetric spurs can hence be an indication of this.
  140   Sat Apr 4 00:00:20 2020 Ragan, Laszlo, Pierre-Michel, DimaRunsZero hour measurement (S2: 0/35 mm and S6: -20/7 mm)
beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 0 hr
S2: 0/35 mm
s6: -20/7

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 22:11,  run0308.lmd 
file running: 0309.lmd

_______________________________________________________________________________

time when accumulation starts: 23:29
time when storage starts: 23:53
time when storage ends: 23:53
I_cooler during storage time: -1 mA

I_cooler =  176 mA


I_SIS: 1.75e9      
ESR particles after stacking: 2.9e6 (offset 5e5)
Number of stackings: ~53   
Target ON density: 4e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 2 mins
(i.e. time for which electron cooler is on after gas jet) 



NTCAp file:
SC_2020-04-03_22-12-50
\IQ_2020-04-03_22-13-48
IQ rate: 8 MS/s
(saved in drive : O)

copy and repeat the above (below the line) for every storage time measurement
  141   Sat Apr 4 00:11:23 2020 Ragan, Pierre-Michel, DimaRunsHalf hour measurement (S2: 0/35 mm and S6: -20/7 mm)
beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 0.5 hr
S2: 0/35 mm
s6: -20/7

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 22:11,  run0308.lmd 
file running: 0310.lmd

_______________________________________________________________________________

time when accumulation starts: 23:53
time when storage starts: 00:23
time when storage ends: 00:53
I_cooler during storage time: -1 mA

I_cooler =  177 mA


I_SIS: 1.5e9      
ESR particles after stacking: 2.1e6 (offset 5e5)
Number of stackings: 60  
Target ON density: 4.03e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 3 mins
(i.e. time for which electron cooler is on after gas jet) 



NTCAp file:
SC_2020-04-03_22-12-50
\IQ_2020-04-03_22-13-48
IQ rate: 8 MS/s
(saved in drive : O)

copy and repeat the above (below the line) for every storage time measurement
  142   Sat Apr 4 00:40:29 2020 Ragan, Pierre-Michel, DimaRunsZero hour measurement (S2: 0/35 mm and S6: -20/7 mm)
beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 0 hr
S2: 0/35 mm
s6: -20/7

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 22:11,  run0308.lmd 
file running: 0311.lmd

_______________________________________________________________________________

time when accumulation starts: 02:15
time when storage starts: 02:39
time when storage ends: 02:39
I_cooler during storage time: -1 mA

I_cooler =  178 mA


I_SIS: 1.75e9      
ESR particles after stacking: 1.5e6 (offset 5e5)
Number of stackings: 60  
Target ON density: 4e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 2 mins
(i.e. time for which electron cooler is on after gas jet) 



NTCAp file:
SC_2020-04-03_22-12-50
\IQ_2020-04-03_22-13-48
IQ rate: 8 MS/s
(saved in drive : O)

copy and repeat the above (below the line) for every storage time measurement
  143   Sat Apr 4 03:06:12 2020 RaganGeneralInstructions if electron cooler goes off during long storage time measurements
Please read the attachment.
ELOG V3.1.5-fc6679b