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  proton-capture on 118Te, Page 5 of 29  Not logged in ELOG logo
ID Date Author Category Subject Yeardown
  365   Fri May 21 14:06:23 2021 JanRunsRun 00542021
open file : e127b_run0054.lmd

beam: 124Xe54+
energy: 7 MeV/u
cooler voltage:

purpose:
Illumination of the detector to see if the gain settings are ok.
Spectra look reasonable, rates are low.

Detector position (Si): -25 mm
GE01DD1IG position (Scraper): out/not used

run start: 14:06:04 21-05-2021
run stop: 15:14:48 21-05-2021

_______________________________________________________________________________

ON Rates
Si_bdt: 31 Hz
Xray_35: 145 Hz
Xray_90: 10 Hz
Xray_145: 56 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 350 uA


SIS particles before:
ESR current at injection: 3e7
ESR particles after decel.: 5e6
Target ON density: 9e13
  366   Fri May 21 15:15:59 2021 JanRunsRun 00552021
open file : e127b_run0055.lmd

beam: 124Xe54+
energy: 7 MeV/u
cooler voltage:

purpose:
Illumination of the detector to see if the gain settings are ok.
Spectra look reasonable, rates are low.

Detector position (Si): -25 mm
GE01DD1IG position (Scraper): out/not used

run start: 15:14:48 21-05-2021
run stop: 15:10:10 21-05-2021

_______________________________________________________________________________

ON Rates
Si_bdt: 21 Hz
Xray_35: 143 Hz
Xray_90: 7 Hz
Xray_145: 63 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 350 uA


SIS particles before:
ESR current at injection:
ESR particles after decel.:
Target ON density: 10e13
  367   Fri May 21 15:20:54 2021 Rui-Jiu ChenRunsStop DAQ2021
Sergey is optimizing beam cycle. 
  368   Fri May 21 19:20:54 2021 LaszloGeneralmisalignment in the pattern2021
for some reason the event number of the target ON and OFF was misaligned with the pattern.
This means that the last few runs (run53, run52...) measured not in the target on phase but one before (at 10 instead of 11). Therefore, with these 
runs we measured the TargetOFF phase instead TargetON (that is why the pg peak seem to disappear...)
  369   Fri May 21 19:36:46 2021 JanRunsRun 00562021
open file : e127b_run0056.lmd

beam: 124Xe54+
energy: 7 MeV/u
cooler voltage:

purpose:
Illumination of the detector to see if the gain settings are ok.
Spectra look reasonable, rates are low.

Detector position (Si): -25 mm
GE01DD1IG position (Scraper): out/not used

run start: 19:19:52 21-05-2021
run stop: 20:08:08 21-05-2021

_______________________________________________________________________________

ON Rates
Si_bdt: 81 Hz
Xray_35: 514 Hz
Xray_90: 20 Hz
Xray_145: 127 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 340 uA


SIS particles before: 9e7
ESR current at injection: 4e7
ESR particles after decel.: 4e6
Target ON density: 9e13
  370   Fri May 21 20:09:00 2021 JanRunsRun 00572021
open file : e127b_run0057.lmd

beam: 124Xe54+
energy: 7 MeV/u
cooler voltage:

purpose:
Illumination of the detector to see if the gain settings are ok.
Spectra look reasonable, rates are low.

Detector position (Si): -25 mm
GE01DD1IG position (Scraper): out/not used

run start: 20:08:08 21-05-2021
run stop: 21:01:58 21-05-2021
_______________________________________________________________________________

ON Rates
Si_bdt: 73 Hz
Xray_35: 584 Hz
Xray_90: 20 Hz
Xray_145: 130 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 340 uA


SIS particles before: 9e7
ESR current at injection: 2.5e7
ESR particles after decel.: 4e6
Target ON density: 9e13
  371   Fri May 21 21:02:53 2021 JanRunsRun 00582021
open file : e127b_run0058.lmd

beam: 124Xe54+
energy: 7 MeV/u
cooler voltage:

purpose:
Illumination of the detector to see if the gain settings are ok.
Spectra look reasonable, rates are low.

Detector position (Si): -25 mm
GE01DD1IG position (Scraper): out/not used

run start: 21:01:58 21-05-2021
run stop: 22:00:05 21-05-2021
_______________________________________________________________________________

ON Rates
Si_bdt: 94 Hz
Xray_35: 581 Hz
Xray_90: 15 Hz
Xray_145: 123 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 340 uA


SIS particles before: 7.4e7
ESR current at injection: 2.8e7
ESR particles after decel.: 2.5e6
Target ON density: 9.8e13
  372   Fri May 21 22:01:32 2021 Cobus, Michele, JanRunsRun 00592021
open file : e127b_run0059.lmd

beam: 124Xe54+
energy: 7 MeV/u
cooler voltage:

purpose:
Reference measurement

Detector position (Si): -25 mm
GE01DD1IG position (Scraper): out/not used

run start: 23:51:28 21-05-2021
run stop: 00:51:28 22-05-2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: 50 Hz
Xray_ON_bdt: 500 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 340 uA


SIS particles before: 6.5e7
ESR current at injection: 2.3e7
ESR particles after decel.: 3e6
Target ON density: 9.8e13
  373   Sat May 22 00:53:06 2021 Cobus, MicheleRunsRun 00602021
open file : e127b_run0060.lmd

beam: 124Xe54+
energy: 7 MeV/u
cooler voltage:

purpose:
Reference measurement

Detector position (Si): -25 mm
GE01DD1IG position (Scraper): out/not used

run start: 00:52:17 22-05-2021
run stop: 01:52:18 22-05-2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: 60-70 Hz
Xray_ON_bdt: 520-650 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 340 uA


SIS particles before: 1.2e8 - 1.0e8
ESR current at injection: 3.0e7 - 4.0e7
ESR particles after decel.: 2.5e6 - 3.5e6
Target ON density: 9.8e13
  374   Sat May 22 01:53:23 2021 Cobus, MicheleRunsRun 00612021
open file : e127b_run0061.lmd

beam: 124Xe54+
energy: 7 MeV/u
cooler voltage:

purpose:
Reference measurement

Detector position (Si): -25 mm
GE01DD1IG position (Scraper): out/not used

run start: 01:52:23 22-05-2021
run stop: 02:36:18 22-05-2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: 70 Hz
Xray_ON_bdt: 650 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 340 uA


SIS particles before: 1.1e8
ESR current at injection: 3.7e7
ESR particles after decel.: 2.5e6
Target ON density: 9.8e13

Comment: Beam intensity dropped by factor of 4 near end of run.
  375   Sat May 22 02:48:44 2021 Cobus, MicheleRunsRun 00622021
open file : e127b_run0062.lmd

beam: 124Xe54+
energy: 7 MeV/u
cooler voltage:

purpose:
Reference measurement

Detector position (Si): -25 mm
GE01DD1IG position (Scraper): out/not used

run start: 02:41: 22-05-2021
run stop: 02:48:21 22-05-2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: 30 Hz
Xray_ON_bdt: 300 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 340 uA


SIS particles before: 3.0e7
ESR current at injection: 1.07e7
ESR particles after decel.:
Target ON density: 9.8e13

Comment: Running with low intensity beam (factor of 4 below normal).
Operator working on problem.
  376   Sat May 22 02:50:40 2021 Cobus, MicheleRunsRun 00632021
open file : e127b_run0063.lmd

beam: 124Xe54+
energy: 7 MeV/u
cooler voltage:

purpose:
Reference measurement

Detector position (Si): -25 mm
GE01DD1IG position (Scraper): out/not used

run start: 02:50:16 22-05-2021
run stop: 03:49:22 22-05-2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: 60 Hz
Xray_ON_bdt: 600 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 340 uA


SIS particles before: 1.25e8
ESR current at injection: 3.1e7
ESR particles after decel.: 2.5e6
Target ON density: 1.0e14

Comment: Beam back to normal.
Si off rate over 120 at ~ 03:32
  377   Sat May 22 03:50:18 2021 Cobus, MicheleRunsRun 00642021
open file : e127b_run0064.lmd

beam: 124Xe54+
energy: 7 MeV/u
cooler voltage:

purpose:
Reference measurement

Detector position (Si): -25 mm
GE01DD1IG position (Scraper): out/not used

run start: 03:49:36 22-05-2021
run stop: 04:49:37 22-05-2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: 60 Hz
Xray_ON_bdt: 500 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 340 uA


SIS particles before: 1.0e8
ESR current at injection: 3.0e7
ESR particles after decel.: 2.5e6
Target ON density: 1.0e14
  378   Sat May 22 04:50:21 2021 Cobus, MicheleRunsRun 00652021
open file : e127b_run0065.lmd

beam: 124Xe54+
energy: 7 MeV/u
cooler voltage:

purpose:
Reference measurement

Detector position (Si): -25 mm
GE01DD1IG position (Scraper): out/not used

run start: 04:49:47 22-05-2021
run stop: 04:48:41 22-05-2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: 70 Hz
Xray_ON_bdt: 650 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 340 uA


SIS particles before: 1.1e8
ESR current at injection: 3.5e7
ESR particles after decel.: 2.5e6
Target ON density: 1.0e14
  379   Sat May 22 05:49:31 2021 Cobus, MicheleRunsRun 00662021
open file : e127b_run0066.lmd

beam: 124Xe54+
energy: 7 MeV/u
cooler voltage:

purpose:
Reference measurement

Detector position (Si): -25 mm
GE01DD1IG position (Scraper): out/not used

run start: 05:48:52 22-05-2021
run stop: 06:52:28 22-05-2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: 70 Hz
Xray_ON_bdt: 700 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 340 uA


SIS particles before: 1.25e8
ESR current at injection: 3.75e7
ESR particles after decel.: 3.5e6
Target ON density: 1.0e14
  380   Sat May 22 06:53:08 2021 Cobus, Michele, Beatriz, YuryRunsRun 00672021
open file : e127b_run0067.lmd

beam: 124Xe54+
energy: 7 MeV/u
cooler voltage:

purpose:
Reference measurement

Detector position (Si): -25 mm
GE01DD1IG position (Scraper): out/not used

run start: 06:52:32 22-05-2021
run stop: 08:00 22-05-2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: 50 Hz
Xray_ON_bdt: 450 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 340 uA


SIS particles before: 7.3e7
ESR current at injection: 1.9e7
ESR particles after decel.: 2.0e6
Target ON density: 1.0e14

For some minutes there was no beam in the ESR because Yuri was trying to move the scraper.
  381   Sat May 22 08:00:52 2021 Beatriz, YuryRunsRun 00682021
open file : e127b_run0068.lmd

beam: 124Xe54+
energy: 7 MeV/u
cooler voltage:

purpose:
Reference measurement

Detector position (Si): -25 mm
GE01DD1IG position (Scraper): out/not used

run start: 08:00:43 22-05-2021
run stop: 09:06:54 22-05-2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: 30 Hz
Xray_ON_bdt: 200 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 330 uA


SIS particles before: 2e7
ESR current at injection: 6e6
ESR particles after decel.: ~1e6
Target ON density: 1.0e14

The intensity is lower because they are preparing a 4He beam for R3B.
For a few minutes there were no particles in SIS.
We have quite some fluctuations in intensity in this run.
  382   Sat May 22 09:07:55 2021 Beatriz, YuryRunsRun 00692021
open file : e127b_run0069.lmd

beam: 124Xe54+
energy: 7 MeV/u
cooler voltage:

purpose:
Reference measurement

Detector position (Si): -25 mm
GE01DD1IG position (Scraper): out/not used

run start: 09:07:16 22-05-2021
run stop: 09:20:24 22-05-2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: 30 Hz
Xray_ON_bdt: 200 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 330 uA


SIS particles before: 2e7
ESR current at injection: 6e6
ESR particles after decel.: ~1e6
Target ON density: 1.0e14
  383   Sat May 22 09:42:20 2021 Beatriz, Yury, JanRunsRun 00702021
open file : e127b_run0070.lmd

beam: 124Xe54+
energy: 7 MeV/u
cooler voltage:

purpose:
Reference measurement

Detector position (Si): -25 mm
GE01DD1IG position (Scraper): out/not used

run start: 09:41:54 22-05-2021
run stop: 11:20:39 22-05-2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: 50 Hz
Xray_ON_bdt: 500 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 340 uA


SIS particles before: 6e7
ESR current at injection: 3.1e7
ESR particles after decel.: 4.1e6
Target ON density: 1.0e14

No beam or low intensity for quite some while...
  384   Sat May 22 11:22:02 2021 Beatriz, Yury, JanRunsRun 00712021
open file : e127b_run0071.lmd

beam: 124Xe54+
energy: 7 MeV/u
cooler voltage:

purpose:
Reference measurement

Detector position (Si): -25 mm
GE01DD1IG position (Scraper): out/not used

run start: 11:21:40 22-05-2021
run stop: 11:56:31 22-05-2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: 50 Hz
Xray_ON_bdt: 500 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 340 uA


SIS particles before: 9e7
ESR current at injection: 3e7
ESR particles after decel.: 3e6
Target ON density: 1.0e14


We close file so that Jan and Jury can go into the ESR to try to solve the problem with the control system of the scraper.
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