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  proton-capture on 118Te, Page 10 of 29  Not logged in ELOG logo
ID Date Author Category Subject Yeardown
  466   Wed May 26 11:47:48 2021 Rene, TinoRunsRun 01312021
No. of stacks: 20
length SC10: 3x 5.5s
bump ge01sq2f (sc10): -20 mm (before -10 mm)

open file : e127b_run0131.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: 11:47:03 26.05.2021
run stop: 12:49:17 26.05.2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: ~ 7 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: 6.3e6 (stacked)
ESR particles after decel.: 1.2e6 (more or less)
Target ON density: 1.0e14
  467   Wed May 26 12:49:52 2021 Rene, TinoRunsRun 01322021
No. of stacks: 20
length SC10: 3x 5.5s
bump ge01sq2f (sc10): -20 mm (before -10 mm)

open file : e127b_run0132.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: 12:49:29 26.05.2021
run stop: 13:47:44 26.05.2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: ~ 7 Hz
Xray_ON_bdt: 280 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 380 nA


SIS particles before: 2.1e8 (one shoot)
ESR current at injection: 6.3e6 (stacked)
ESR particles after decel.: 1.2e6 (more or less)
Target ON density: 1.0e14

Sensitivity of SIS trafo has been changed, thats why the the SIS particle number is smaller, but intensity did not change.
Parallel injection into cave c has started. This brought problems with the timing for the stochastic cooling.
  468   Wed May 26 13:49:36 2021 Rene, TinoRunsRun 01332021
No. of stacks: 20
length SC10: 3x 5.5s
bump ge01sq2f (sc10): -20 mm (before -10 mm)

open file : e127b_run0133.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: 13:47:44 26.05.2021
run stop: 14:47:12 26.05.2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: ~ 8 Hz
Xray_ON_bdt: 210 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 380 nA


SIS particles before: 2.1e9 (one shoot)
ESR current at injection: 5.4e6 (stacked)
ESR particles after decel.: 0.9e6 (more or less)
Target ON density: 1.0e14
  469   Wed May 26 14:28:23 2021 JanAnalysisXrays from 118Te & 124Xe2021
Attached is a plot of the uncalibrated energy spectra taken with the 90 degree xray detector for 118Te (red) and 124Xe (blue).
Shown is the region covering the K-alpha and K-REC peaks.

Calculating the ratios (Te/Xe) for K_alpha and K-REC energies from theory one gets:

K_alpha (theory): 0.9236  
K-REC   (theory): 0.9308

Without energy calibration we get the following ratio (using channel numbers):

K_alpha (exp): 0.9293  
K-REC   (exp): 0.9344

Taking into account that the channel numbers are not calibrated, the agreement is still very good.

In summary we can be sure that we have 118Te stored at 7AMeV.
Attachment 1: xray90_124Xe_118Te.png
xray90_124Xe_118Te.png
  470   Wed May 26 14:48:10 2021 Ragan, ThanassisRunsRun 01342021
No. of stacks: 20
length SC10: 3x 5.5s
bump ge01sq2f (sc10): -20 mm
bump target (sc10): -11.5 mm

open file : e127b_run0134.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: 14:47:22 26.05.2021
run stop: 15:28:45 26.05.2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: ~ 8 Hz
Xray_ON_bdt: 210 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 380 nA


SIS particles before: 2.1e9 (one shoot)
ESR current at injection: 5.4e6 (stacked)
ESR particles after decel.: 0.9e6 (more or less)
Target ON density: 1.0e14
  471   Wed May 26 15:30:03 2021 Ragan, ThanassisGeneralChanging the beam energy 2021
The ESR team is changing the beam energy to 6 MeV/u.
  473   Wed May 26 18:36:08 2021 Ragan, ThanassisRunsRun 01352021
No. of stacks: 20
length SC10: 3x 5.5s
bump ge01sq2f (sc10): -20 mm
bump target (sc10): -11.5 mm


open file : e127b_run0135.lmd

beam: 118Te52+
energy: 6 MeV/u
cooler voltage:

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

Detector position (Si): -25 mm
GE01DD1IG position (Scraper): +1.0 mm (20mm away from beam)

run start: 18:18:10 26.05.2021
run stop: 19:07:37 26.05.2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: ~ 6 Hz
Xray_ON_bdt: 80 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 380 nA


SIS particles before: 2.1e9 (one shoot)
ESR current at injection: 5.4e6 (stacked)
ESR particles after decel.: 0.9e6 (more or less)
Target ON density: 1.0e14
  474   Wed May 26 18:37:34 2021 Ragan, ThanassisGeneralOptimization target bump/overlapp2021
| bump position | X ray bdt ON | Si rate ON |
---------------------------------------------
| -11.5         | 120          | 4-5        |
| -10.5         | 100          | 5          |
| -9.5          | 85           | 5          |
| -12.5         | 100          | 6          |

-11.5 bump position is taken for the data taking.
  475   Wed May 26 19:08:17 2021 Ragan, ThanassisGeneralCooler down2021
We stopped data taking as the electron cooler is down.
  476   Wed May 26 19:25:54 2021 Ragan, ThanassisRunsRun 01362021
No. of stacks: 20
length SC10: 3x 5.5s
bump ge01sq2f (sc10): -20 mm
bump target (sc10): -11.5 mm

open file : e127b_run0136.lmd

beam: 118Te52+
energy: 6 MeV/u
cooler voltage:

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

Detector position (Si): -25 mm
GE01DD1IG position (Scraper): +1.0 mm (20mm away from beam)

run start: 19:25:38 26.05.2021
run stop: 20:25:40 26.05.2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: ~ 6 Hz
Xray_ON_bdt: 80 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 380 nA


SIS particles before: 2.1e9 (one shoot)
ESR current at injection: 5.4e6 (stacked)
ESR particles after decel.: 0.9e6 (more or less)
Target ON density: 1.0e14
  477   Wed May 26 20:26:15 2021 Ragan, ThanassisRunsRun 01372021
No. of stacks: 20
length SC10: 3x 5.5s
bump ge01sq2f (sc10): -20 mm
bump target (sc10): -11.5 mm


open file : e127b_run0137.lmd

beam: 118Te52+
energy: 6 MeV/u
cooler voltage:

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

Detector position (Si): -25 mm
GE01DD1IG position (Scraper): +1.0 mm (20mm away from beam)

run start: 20:25:44 26.05.2021
run stop: 20:33:11 26.05.2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: ~ 6 Hz
Xray_ON_bdt: 100 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 380 nA


SIS particles before: 7.0e8 (one shoot)
ESR current at injection: 5.0e6 (stacked)
ESR particles after decel.: 2.3e5 (more or less)
Target ON density: 1.0e14
  478   Wed May 26 20:34:50 2021 Ragan, ThanassisDetectorsDetector filling2021
Jan is filling the detector after run0137.
  479   Wed May 26 20:42:31 2021 Ragan, ThanassisRunsRun 01382021
No. of stacks: 20
length SC10: 3x 5.5s
bump ge01sq2f (sc10): -20 mm
bump target (sc10): -11.5 mm


open file : e127b_run0138.lmd

beam: 118Te52+
energy: 6 MeV/u
cooler voltage:

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

Detector position (Si): -25 mm
GE01DD1IG position (Scraper): +1.0 mm

run start: 20:42:13 26.05.2021
run stop: 21:42:20 26.05.2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: ~ 5 Hz
Xray_ON_bdt: 100 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 380 nA


SIS particles before: 7.0e8 (one shoot)
ESR current at injection: 5.0e6 (stacked)
ESR particles after decel.: 2.3e5 (more or less)
Target ON density: 1.0e14
  480   Wed May 26 21:42:46 2021 Ragan, ThanassisRunsRun 01392021
No. of stacks: 20
length SC10: 3x 5.5s
bump ge01sq2f (sc10): -20 mm
bump target (sc10): -11.5 mm


open file : e127b_run0139.lmd

beam: 118Te52+
energy: 6 MeV/u
cooler voltage:

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

Detector position (Si): -25 mm
GE01DD1IG position (Scraper): +1.0 mm

run start: 21:42:25 26.05.2021
run stop: 22:42:33 26.05.2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: ~ 5-6 Hz
Xray_ON_bdt: 120 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 380 nA


SIS particles before: 7.0e8 (one shoot)
ESR current at injection: 2.0e6 (stacked)
ESR particles after decel.: 2.3e5 (more or less)
Target ON density: 1.0e14
  481   Wed May 26 22:42:56 2021 Ragan, ThanassisRunsRun 01402021
No. of stacks: 20
length SC10: 3x 5.5s
bump ge01sq2f (sc10): -20 mm
bump target (sc10): -11.5 mm


open file : e127b_run0140.lmd

beam: 118Te52+
energy: 6 MeV/u
cooler voltage:

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

Detector position (Si): -25 mm
GE01DD1IG position (Scraper): +1.0 mm

run start: 22:42:39 26.05.2021
run stop: 23:45:58 26.05.2021
_______________________________________________________________________________

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

Si voltage: 100.0 V
Si leakage current: 380 nA


SIS particles before: 7.0e8 (one shoot)
ESR current at injection: 3.0e6 (stacked)
ESR particles after decel.: 2.3e5 (more or less)
Target ON density: 1.0e14
  482   Wed May 26 23:46:49 2021 Pierre-Michel, EnisRunsRun 01412021
No. of stacks: 20
length SC10: 3x 5.5s
bump ge01sq2f (sc10): -20 mm
bump target (sc10): -11.5 mm

open file : e127b_run0141.lmd

beam: 118Te52+
energy: 6 MeV/u
cooler voltage:

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

Detector position (Si): -25 mm
GE01DD1IG position (Scraper): +1.0 mm

run start: 23:46:05 26.05.2021
run stop: 00:46:01 27.05.2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: ~ 2 Hz
Xray_ON_bdt: 120 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 380 nA


SIS particles before: 2.8e9 (one shoot)
ESR current at injection: 5.0e6 (stacked)
ESR particles after decel.: 2.3e5 (more or less)
Target ON density: 1.0e14
  483   Thu May 27 00:46:33 2021 Pierre-Michel, EnisRunsRun 01422021
No. of stacks: 20
length SC10: 3x 5.5s
bump ge01sq2f (sc10): -20 mm
bump target (sc10): -11.5 mm

open file : e127b_run0142.lmd

beam: 118Te52+
energy: 6 MeV/u
cooler voltage:

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

Detector position (Si): -25 mm
GE01DD1IG position (Scraper): +1.0 mm

run start: 00:46:03 27.05.2021
run stop: 01:46:19 27.05.2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: ~ 5 Hz
Xray_ON_bdt: 120 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 380 nA


SIS particles before: 2.8e9 (one shoot)
ESR current at injection: 5.0e6 (stacked)
ESR particles after decel.: 2.3e5 (more or less)
Target ON density: 1.0e14
  484   Thu May 27 01:46:48 2021 Pierre-Michel, EnisRunsRun 01432021
No. of stacks: 20
length SC10: 3x 5.5s
bump ge01sq2f (sc10): -20 mm
bump target (sc10): -11.5 mm


open file : e127b_run0143.lmd

beam: 118Te52+
energy: 6 MeV/u
cooler voltage:

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

Detector position (Si): -25 mm
GE01DD1IG position (Scraper): +1.0 mm

run start: 01:46:21 27.05.2021
run stop: 02:46:22 27.05.2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: ~ 5 Hz
Xray_ON_bdt: 120 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 380 nA


SIS particles before: 3e9 (one shoot)
ESR current at injection: 4.0e6 (stacked)
ESR particles after decel.: 2.3e5 (more or less)
Target ON density: 1.0e14
  485   Thu May 27 02:47:00 2021 Pierre-Michel, EnisRunsRun 01442021
No. of stacks: 20
length SC10: 3x 5.5s
bump ge01sq2f (sc10): -20 mm
bump target (sc10): -11.5 mm


open file : e127b_run0144.lmd

beam: 118Te52+
energy: 6 MeV/u
cooler voltage:

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

Detector position (Si): -25 mm
GE01DD1IG position (Scraper): +1.0 mm

run start: 02:46:26 27.05.2021
run stop: 03:46:50 27.05.2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: ~ 5 Hz
Xray_ON_bdt: 120 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 380 nA


SIS particles before: 2.8e9 (one shoot)
ESR current at injection: 4.8e6 (stacked)
ESR particles after decel.: 2.3e5 (more or less)
Target ON density: 1.0e14
  486   Thu May 27 03:47:18 2021 Pierre-Michel, EnisRunsRun 01452021
No. of stacks: 20
length SC10: 3x 5.5s
bump ge01sq2f (sc10): -20 mm
bump target (sc10): -11.5 mm


open file : e127b_run0145.lmd

beam: 118Te52+
energy: 6 MeV/u
cooler voltage:

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

Detector position (Si): -25 mm
GE01DD1IG position (Scraper): +1.0 mm

run start: 03:46:53 27.05.2021
run stop: 04:47:38 27.05.2021
_______________________________________________________________________________

ON Rates
Si_ON_bdt: ~ 5 Hz
Xray_ON_bdt: 120 Hz
BaF_OR: ---

Si voltage: 100.0 V
Si leakage current: 380 nA


SIS particles before: 3e9 (one shoot)
ESR current at injection: 5e6 (stacked)
ESR particles after decel.: 2.3e5 (more or less)
Target ON density: 1.0e14
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