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  proton-capture on 118Te, Page 25 of 29  Not logged in ELOG logo
ID Date Author Category Subject Yeardown
  188   Sun Mar 22 13:33:19 2020 LaszloGeneral2nd storage of MCP data 
I made a backup for the MCP data on my own GSI laptop. Looking for better solution...
the original "fresh" files stored at litv-exp@lxg1299:/data.local2/hillenbrand/Laszlo/
  189   Sun Mar 22 14:23:50 2020 Esther, Ragan, Michael, LaszloRunsrun entry - run084, Uli working with gas jet target 
Uli is still working with gas jet target. 
open file : run084

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 14:25 , first file: run084_0001.lmd
run stop  at  , last file:  run_0xxx.lmd

_______________________________________________________________________________

time: 14:25 pm.

ON Rates
Si_X:       Hz
Si_Y:       Hz
Xray_35:    Hz
Xray_90:    Hz
Xray_145:   Hz
BaF_OR:     Hz

Si voltage:          60.01 V  
Si leakage current:  4.07 uA


SIS particles before:           ~2.5e9
ESR current at injection:        11 uA
ESR particles after decel.:     
Target ON density:              Uli is working on it
Base line for ESR current drops dpwn from 4 to -2 after restarting the ESR cycle

copy and repeat the above (below the line) every 30 minutes
  190   Sun Mar 22 14:40:14 2020 Esther, 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: 14:40 pm.

ON Rates
Si_X:       0 Hz
Si_Y:       0 Hz
Xray_35:    3 Hz
Xray_90:    63 Hz
Xray_145:   30 Hz
BaF_OR:     Hz

Si voltage:          60.02 V  
Si leakage current:  4.05 uA


SIS particles before:           ~2.5e9
ESR current at injection:        9 uA
ESR particles after decel.:     
Target ON density:              1e14
Base line for ESR current drops dpwn from 4 to -2 after restarting the ESR cycle

copy and repeat the above (below the line) every 30 minutes
  191   Sun Mar 22 14:58:59 2020 LaszloGeneraldropping density of Gasjet 
after like 20min run, the density of the gasjet already dropped from 10^14 to 8.7*10^13. Now it seems to remain in that value

Below in arbitrary units one can see the trend of the gas jet density starting from 10^14 to 8.7*10^13
Attachment 1: ga_jet_drop.png
ga_jet_drop.png
  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
  193   Sun Mar 22 15:39:29 2020 MichaelRunsrun entry - run086 
open file : run086

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 15:39 , first file: run086_0001.lmd
run stop  at  , last file:  run_0xxx.lmd

_______________________________________________________________________________

time: 15:42 pm.

ON Rates
Si_X:       0 Hz
Si_Y:       0 Hz
Xray_35:    4 Hz
Xray_90:    45 Hz
Xray_145:   22 Hz
BaF_OR:     Hz

Si voltage:          60.01 V  
Si leakage current:  4.06 uA


SIS particles before:           ~2.1e9
ESR current at injection:        11 uA
ESR particles after decel.:     
Target ON density:              8.8e13

copy and repeat the above (below the line) every 30 minutes
  194   Sun Mar 22 16:10:12 2020 MichaelRunsrun entry - run086 
open file : run086

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 15:39 , first file: run086_0001.lmd
run stop  at  , last file:  run_0xxx.lmd

_______________________________________________________________________________

time: 16:10 pm.

ON Rates
Si_X:       0 Hz
Si_Y:       0 Hz
Xray_35:    1 Hz
Xray_90:    56 Hz
Xray_145:   28 Hz
BaF_OR:     Hz

Si voltage:          60.02 V  
Si leakage current:  4.07 uA


SIS particles before:           ~2.3e9
ESR current at injection:        10.5 uA
ESR particles after decel.:     
Target ON density:              8.92e13

copy and repeat the above (below the line) every 30 minutes
  195   Sun Mar 22 16:39:37 2020 MichaelRunsrun entry - run087 
Four shots at the end of 086/beginning of 87 were empty, no SIS kicker. Beam operators fixed it quickly.

open file : run087

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 16:38 , first file: run087_0001.lmd
run stop  at  , last file:  run_0xxx.lmd

_______________________________________________________________________________

time: 16:42 pm.

ON Rates
Si_X:       0 Hz
Si_Y:       0 Hz
Xray_35:    1 Hz
Xray_90:    52 Hz
Xray_145:   16 Hz
BaF_OR:     Hz

Si voltage:          60.02 V  
Si leakage current:  4.05 uA


SIS particles before:           ~2.3e9
ESR current at injection:        8.4 uA
ESR particles after decel.:     
Target ON density:              8.7e13

copy and repeat the above (below the line) every 30 minutes
  196   Sun Mar 22 17:09:49 2020 MichaelRunsrun entry - run087 
open file : run087

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 16:38 , first file: run087_0001.lmd
run stop  at  , last file:  run_0xxx.lmd

_______________________________________________________________________________

time: 17:10 pm.

ON Rates
Si_X:       0 Hz
Si_Y:       0 Hz
Xray_35:    3 Hz
Xray_90:    35 Hz
Xray_145:   21 Hz
BaF_OR:     Hz

Si voltage:          60.02 V  
Si leakage current:  4.08 uA


SIS particles before:           ~2.38e9
ESR current at injection:        8.9 uA
ESR particles after decel.:     
Target ON density:              8.58e13

copy and repeat the above (below the line) every 30 minutes
  197   Sun Mar 22 17:35:39 2020 MichaelRunsrun entry - run087.  
Closing file at 17:39, stopping data taking. Yuri will switch to primary beam through FRS without target.

Also a minor observation is, that at the end of the target on phase, the X-ray count rate is going up very high. (Data acquisition was in Jet Off mode)

close file : run087

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 16:38 , first file: run087_0001.lmd
run stop  at  , last file:  run_0xxx.lmd

_______________________________________________________________________________

time: 17:35 pm. (This is towards the end of the run 087)

ON Rates
Si_X:       0 Hz
Si_Y:       0 Hz
Xray_35:    3 Hz
Xray_90:    35 Hz
Xray_145:   21 Hz
BaF_OR:     Hz

Si voltage:          60.02 V  
Si leakage current:  4.08 uA


SIS particles before:           ~2.39e9
ESR current at injection:        10 uA
ESR particles after decel.:     
Target ON density:              8.61e13

copy and repeat the above (below the line) every 30 minutes
  198   Sun Mar 22 17:45:07 2020 LaszloGeneralswitching to primary beam 
We have finished the measurement with the fragments.

Now Yury will setup up a primary beam through the FRS, but without target in FRS.
We are hoping for increased intensity and stable gas target.
The plan is to make a measurement with and without the scraper in order to see the effect of scraping the Rutherford scattering.
  199   Sun Mar 22 17:47:27 2020 Laszlo Si, Xrays target density spectra during 118Te afternoon measurement 
We got 30 counts out of this afternoon 118Te run on our Si TargetON histo.
That 1 count at bin (6,10) I dont understand.

Now i can see peaks both at the 35 and 90 angle Xray spectra but not much on the 145 one.
At the end the target density stayed at 8.6E13.
Attachment 1: End_of_118Te_runs.png
End_of_118Te_runs.png
Attachment 2: target_density_during_118Te_afternoon_runs.png
target_density_during_118Te_afternoon_runs.png
  200   Sun Mar 22 17:49:28 2020 Michael, LaszloRunsrun entry - run088 
The beam is still unchanged. We just start a run to collect all remaining data.
Data is probably scratch, expect changing conditions at the machines during the run.

No counts in Target ON phase at Silicon Detector. Probably we had only two first shoots from FRS in this run (see picture below)

open file : run088

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 17:48:58 , first file: run088_0001.lmd
run stop  at  , last file:  run_0xxx.lmd

_______________________________________________________________________________

time: 17:53 pm.

ON Rates
Si_X:       0 Hz
Si_Y:       0 Hz
Xray_35:    3 Hz
Xray_90:    54 Hz
Xray_145:   28 Hz
BaF_OR:     Hz

Si voltage:          60.02 V  
Si leakage current:  4.05 uA


SIS particles before:           ~2.3e9
ESR current at injection:        6.5 uA
ESR particles after decel.:     
Target ON density:              8.45e13

copy and repeat the above (below the line) every 30 minutes
Attachment 1: Trafo_run88.png
Trafo_run88.png
  201   Sun Mar 22 18:35:43 2020 Laszlo target dropped aagain 
there was a drop again from 8.6e13 to 7e13 in the target density
Attachment 1: target_density_after_118Te_afternoon_runs.png
target_density_after_118Te_afternoon_runs.png
  202   Sun Mar 22 18:41:50 2020 Michael, LaszloRunsrun entry - run088 
Closed file run088 at 17:55. No beam in ESR.
  203   Sun Mar 22 19:15:03 2020 Laszlo Si moved out of the ring, high voltage is switched off 
  204   Sun Mar 22 19:49:12 2020 Michael, Laszlo, Yuri Yuri is still tuning FRS 
We filled the Xray detectors.
Yuri is sill tuning FRS for primary beam.
  205   Sun Mar 22 22:00:49 2020 Michael, Laszlo, YuriRunsrun entry - run089 - switched to Primary beam 
Yuri is still tuning, but we are collecting data. Beam is in. Detectors are out.

open file : run089

beam: 124Xe54+ (?)
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 22:00:26 , first file: run089_0001.lmd
run stop  at  , last file:  run_0xxx.lmd

_______________________________________________________________________________

time: 22:02 pm.

ON Rates
Si_X:        Hz
Si_Y:        Hz
Xray_35:     Hz
Xray_90:     Hz
Xray_145:    Hz
BaF_OR:      Hz

Si voltage:          off  
Si leakage current:  off

SIS particles before:           ~3.05e8
ESR current at injection:        380 uA
ESR particles after decel.:     
Target ON density:              

copy and repeat the above (below the line) every 30 minutes
  206   Sun Mar 22 22:06:21 2020 Michael, Laszlo, YuriRunsrun entry - run089 - stopped 
closed file again.

Yuri is still tuning, but we are collecting data. Beam is in. Detectors are out.

open file : run089

beam: 124Xe54+ (?)
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 22:00:26 , first file: run089_0001.lmd
run stop  at  , last file:  run_0xxx.lmd

_______________________________________________________________________________

time: 22:02 pm.

ON Rates
Si_X:        Hz
Si_Y:        Hz
Xray_35:     Hz
Xray_90:     Hz
Xray_145:    Hz
BaF_OR:      Hz

Si voltage:          off  
Si leakage current:  off

SIS particles before:           ~3.05e8
ESR current at injection:        380 uA
ESR particles after decel.:     
Target ON density:              

copy and repeat the above (below the line) every 30 minutes
  207   Sun Mar 22 22:46:56 2020 Michael, Laszlo, YuriRunsrun entry - run090 
Taking data again with primary beam.

open file : run090

beam: 124Xe54+
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): -27 mm
GE01DD1IG position (Scraper): 9 mm

run start at 23:07:10, first file: run087_0001.lmd
run stop  at , last file:  run_0xxx.lmd

_______________________________________________________________________________

time: 23:10 pm.

ON Rates
Si_X:      0 Hz
Si_Y:      0 Hz
Xray_35:   2 Hz
Xray_90:   83 Hz
Xray_145:  14 Hz
BaF_OR:     Hz

Si voltage:          60.02 V  
Si leakage current:  3.98 uA


SIS particles before:           ~2e8
ESR current at injection:       297 uA
ESR particles after decel.:     
Target ON density:              6.1e13

copy and repeat the above (below the line) every 30 minutes
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