HOME ESR EXPERIMENTS LABS etc
E121 E127 E132 E125 E143 laser_cooling_2021 E142 Ê128 E146 E0052 E0018
  proton-capture on 118Te, Page 29 of 29  Not logged in ELOG logo
New entries since:Thu Jan 1 01:00:00 1970
ID Date Authordown Category Subject Year
  434   Tue May 25 04:32:39 2021 Cobus, MicheleRunsRun 01082021
No. of stacks: 30 (before 20)
length SC10: 3x 5.5s
bump ge01sq2f (sc10): -20 mm (before -10 mm)

open file : e127b_run0108.lmd

beam: 118Te52+
energy: 7 MeV/u
cooler voltage:

purpose:
Fragment beam measurement (beating the record of rad. beam pg-measurement)

Detector position (Si): -25 mm
GE01DD1IG position (Scraper): +3.5 mm (20mm away from beam)

run start: 04:32:00 25.05.2021
run stop: 05:35:48 25.05.2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: ~0 Hz
Xray_ON_bdt: 120 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 390 uA


SIS particles before: 3.6e9
ESR current at injection: 5.0e6 (stacked)
ESR particles after decel.: 1.5e6
Target ON density: 1.0e14

Comments:

~40% less ESR current at injection ~04:38 - end of run
No beam in SIS, 05:24 - 05:31
  435   Tue May 25 05:36:31 2021 Cobus, MicheleRunsRun 01092021
No. of stacks: 30 (before 20)
length SC10: 3x 5.5s
bump ge01sq2f (sc10): -20 mm (before -10 mm)

open file : e127b_run0109.lmd

beam: 118Te52+
energy: 7 MeV/u
cooler voltage:

purpose:
Fragment beam measurement (beating the record of rad. beam pg-measurement)

Detector position (Si): -25 mm
GE01DD1IG position (Scraper): +3.5 mm (20mm away from beam)

run start: 05:35:52 25.05.2021
run stop: 06:41:53 25.05.2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: ~0 Hz
Xray_ON_bdt: 140 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 390 uA


SIS particles before: 3.6e9
ESR current at injection: 5.5e6 (stacked)
ESR particles after decel.: 1.5e6 (more or less)
Target ON density: 1.0e14
  436   Tue May 25 06:42:39 2021 Cobus, MicheleRunsRun 01102021
No. of stacks: 30 (before 20)
length SC10: 3x 5.5s
bump ge01sq2f (sc10): -20 mm (before -10 mm)

open file : e127b_run0110.lmd

beam: 118Te52+
energy: 7 MeV/u
cooler voltage:

purpose:
Fragment beam measurement (beating the record of rad. beam pg-measurement)

Detector position (Si): -25 mm
GE01DD1IG position (Scraper): +3.5 mm (20mm away from beam)

run start: 06:42:05 25.05.2021
run stop: 07:45:55 25.05.2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: ~0 Hz
Xray_ON_bdt: 140 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 390 uA


SIS particles before: 3.6e9
ESR current at injection: 5.5e6 (stacked)
ESR particles after decel.: 1.5e6 (more or less)
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.
  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
  355   Thu May 20 15:15:54 2021 Beatriz, LaszloCalibrationrun00502021
crap
  356   Thu May 20 17:31:28 2021 Beatriz, LaszloCalibrationrun00512021
crap
  454   Tue May 25 23:27:30 2021 Beatriz, CobusRunsRun 01202021
No. of stacks: 20
length SC10: 3x 5.5s
bump ge01sq2f (sc10): -20 mm (before -10 mm)

open file : e127b_run0120.lmd

beam: 118Te52+
energy: 7 MeV/u
cooler voltage:

purpose:
Fragment beam measurement (beating the record of rad. beam pg-measurement)

Detector position (Si): -25 mm
GE01DD1IG position (Scraper): +3.5 mm (20mm away from beam)

run start: 23:26:41 25.05.2021
run stop: 00:26:29 26.05.2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: ~3 Hz
Xray_ON_bdt: 250 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 380 nA


SIS particles before: 3.0e9 (one shoot)
ESR current at injection: 6.5e6 (stacked)
ESR particles after decel.: 2e6 (more or less)
Target ON density: 1.0e14
  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.
  192   Sun Mar 22 15:14:01 2020 Michael, LaszloRunsrun entry - run085, gas jet is back in business! 
open file : run085

beam: 118Te52+
energy: 10 MeV/u

purpose: data with TARGET ON and SCRAPER is back again--> We expect to cut the Rutherford for now on.

Detector position (Si): -24 mm

run start at 14:39 , first file: run085_0001.lmd
run stop  at  , last file:  run_0xxx.lmd

_______________________________________________________________________________

time: 15:14 pm.

ON Rates
Si_X:       0 Hz
Si_Y:       0 Hz
Xray_35:    2 Hz
Xray_90:    55 Hz
Xray_145:   32 Hz
BaF_OR:     Hz

Si voltage:          60.02 V  
Si leakage current:  4.07 uA


SIS particles before:           ~2e9
ESR current at injection:        9 uA
ESR particles after decel.:     
Target ON density:              8.7e13

copy and repeat the above (below the line) every 30 minutes
http://clipboard.acc.gsi.de/screenshot-app/screenshots/tcl1048/2020-03-22_15-29-05-937.png
Attachment 1: 2020-03-22_15-29-05-937.png
2020-03-22_15-29-05-937.png
ELOG V3.1.5-fc6679b