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  398   Sat May 22 21:40:09 2021 Pierre-Michel & EnisRunsRun 00772021
open file : e127b_run0077.lmd

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

purpose:
Reference measurement with scraper

Detector position (Si): -19 mm
GE01DD1IG position (Scraper): +2.5 mm (20mm away from beam)

run start: 21:39:33 22-05-2021
run stop: 22:20:22 22-05-2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: 15 Hz
Xray_ON_bdt: 700 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 340 uA


SIS particles before: 1.2e8
ESR current at injection: 4e7
ESR particles after decel.: 2.5e6
Target ON density: 1.0e14
  397   Sat May 22 21:33:22 2021 LaszloDetectorsXray detectors are filled at 90 and 352021
  396   Sat May 22 20:47:39 2021 Pierre-Michel & EnisRunsRun 00762021
open file : e127b_run0076.lmd

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

purpose:
Reference measurement with scraper

Detector position (Si): -19 mm
GE01DD1IG position (Scraper): +2.5 mm (20mm away from beam)

run start: 1:: 22-05-2021
run stop: 21:21:38 22-05-2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: 15 Hz
Xray_ON_bdt: 700 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 340 uA


SIS particles before: 1.3e8
ESR current at injection: 4.5e7
ESR particles after decel.: 2.5e6
Target ON density: 1.0e14
  395   Sat May 22 20:46:19 2021 Laszlo, Pierre.Michel, EnisGeneralnew scraper position2021
The scraper was moved into 2.5mm in absolute which corresponds to 20mm away from the beam axis.

Pressluft Antriebe

Position 1
GE01DD1IG (SC12) 2.5 mm

Position 2
GE01DD1IG (SC9) 2.5 mm
  394   Sat May 22 19:32:28 2021 Pierre-Michel & EnisRunsRun 00752021
open file : e127b_run0075.lmd

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

purpose:
Reference measurement with scraper

Detector position (Si): -19 mm
GE01DD1IG position (Scraper): +12.5 mm

run start: 1:: 22-05-2021
run stop: 1:: 22-05-2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: 15 Hz
Xray_ON_bdt: 700 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 340 uA


SIS particles before: 1.1e8
ESR current at injection: 2.5e7
ESR particles after decel.: 2.5e6
Target ON density: 1.0e14
  393   Sat May 22 19:05:13 2021 Pierre-Michel & EnisRunsRun 00742021
Note: SIS lost HF, no beam since 19:21. Stopped run early

open file : e127b_run0074.lmd

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

purpose:
Reference measurement with scraper

Detector position (Si): -19 mm
GE01DD1IG position (Scraper): +12.5 mm

run start: 1:: 22-05-2021
run stop: 1:: 22-05-2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: 15 Hz
Xray_ON_bdt: 700 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 340 uA


SIS particles before: 8e7
ESR current at injection: 3e7
ESR particles after decel.: 2e6
Target ON density: 1.0e14
  392   Sat May 22 18:05:22 2021 Pierre-Michel & EnisRunsRun 00732021
open file : e127b_run0073.lmd

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

purpose:
Reference measurement with scraper

Detector position (Si): -19 mm
GE01DD1IG position (Scraper): +12.5 mm

run start: 1:: 22-05-2021
run stop: 1:: 22-05-2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: 10 Hz
Xray_ON_bdt: 600 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 340 uA


SIS particles before: 9e7
ESR current at injection: 2e7
ESR particles after decel.: 2e6
Target ON density: 1.0e14
  391   Sat May 22 17:15:26 2021 LaszloGeneralScraper position2021
We found the beam axis with the scraper to be -17.5 mm.
The Scraper position set to +12.5 mm, 30 mm relative from the beam.
  390   Sat May 22 17:13:48 2021 LaszloDetectorsSi position changed2021
Si was moved from -25 mm to -19 mm before run 0072.
  389   Sat May 22 17:01:33 2021 Pierre-Michel & EnisRunsRun 00722021
open file : e127b_run0072.lmd

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

purpose:
Reference measurement with scraper

Detector position (Si): -19 mm
GE01DD1IG position (Scraper): +12.5 mm

run start: 1:: 22-05-2021
run stop: 1:: 22-05-2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: 15 Hz
Xray_ON_bdt: 600 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
  388   Sat May 22 16:29:07 2021 Laszlo et al.Generalcoolers are back2021
we can measure again.

(please write a detailed description if needed)
  387   Sat May 22 16:28:10 2021 LaszloGeneralDSSSD movement2021
The DSSSD is moved back to its measurement position(-25mm).
  386   Sat May 22 14:53:34 2021 Beatriz et al.GeneralDSSD Movement2021
DSSSD moved to the most in position in order to try to scrape the beam with the scraper.
  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.
  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...
  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
  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.
  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.
  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
  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
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