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  proton-capture on 118Te, Page 22 of 29  Not logged in ELOG logo
ID Date Author Category Subject Year
  154   Sat Mar 21 23:24:09 2020 Dima, PierreRunsrun entry - run068 
open file : run068

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 22:54 , first file: run068_0001.lmd
run stop  at : , last file:  run067_0xxx.lmd

_______________________________________________________________________________

time: 23:24 pm.

ON Rates
Si_X:      0 Hz
Si_Y:      0 Hz
Xray_35:   4 Hz
Xray_90:   53 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:       21 uA
ESR particles after decel.:     
Target ON density:              5.41e13


copy and repeat the above (below the line) every 30 minutes
  153   Sat Mar 21 23:19:14 2020 JanAnalysis118Te52+ on H2-target - Xray spectrum 90 degree 
The attached spectrum is for the 90 degree X-ray detector taken for about 3 hours with 118Te52+.
We see two peaks at ~29 keV (K-alpha) and 44 keV (K-REC).

The resolution is about 1.5 keV, and the signal-to-background ratio is also really bad.

The increase of background events at higher E might be induced by Compton scattering of a high E gamma ray from the BaF detectors, which are active and sit close by (not anymore).
  152   Sat Mar 21 23:12:38 2020 JanDetectorsremoved BaF detectors 
After run 67 and before run 68, the BaF detectors have been removed in order to reduce the Compton background in the x-ray detectors.
  151   Sat Mar 21 23:07:00 2020 LaszloGeneral1672. MCP file was (recoils) was not closed 
1672. MCP file was  (recoils) was not closed when we refilled the Xrays and did the cable change of 90 and 145 xrays
These stored in lxg1299 local disk
  150   Sat Mar 21 22:59:09 2020 Sergiy,Ruijiu Runsrun entry - run068 
open file : run068

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 22:54 , first file: run068_0001.lmd
run stop  at : , last file:  run067_0xxx.lmd

_______________________________________________________________________________

time: 22:54 pm.

ON Rates
Si_X:      0 Hz
Si_Y:      0 Hz
Xray_35:   1 Hz
Xray_90:   48 Hz
Xray_145:  17 Hz
BaF_OR:     Hz

Si voltage:          60.01 V  
Si leakage current:  4.06 uA


SIS particles before:           ~3.0e9
ESR particles at injection:     n.n.
ESR particles after decel.:     
Target ON density:              5.23e13


copy and repeat the above (below the line) every 30 minutes
  149   Sat Mar 21 22:57:28 2020 Laszlo, JanDAQchanging cables of the Xray 90 and 145 
Energy signals of 90 and 145 degree detector have been checked and exchanged
They were connected to the wrong ADC channel.

Now 
E_Xray2 and t_Xray2 should belong to 90 degree
E_Xray3 and t_Xray3 belong to 145 degree
  148   Sat Mar 21 21:41:29 2020 Sergiy,Ruijiu Runsrun entry - run067 
open file : run067

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 20:41 , first file: run067_0001.lmd
run stop  at 21:40 , last file:  run066_0xxx.lmd

_______________________________________________________________________________

time: 21:12 pm.

ON Rates
Si_X:      0 Hz
Si_Y:      0 Hz
Xray_35:   4 Hz
Xray_90:   29 Hz
Xray_145:  25 Hz
BaF_OR:     Hz

Si voltage:          60.01 V  
Si leakage current:  4.08 uA


SIS particles before:           ~2.5e9
ESR particles at injection:     n.n.
ESR particles after decel.:     
Target ON density:              6.e13


copy and repeat the above (below the line) every 30 minutes
  147   Sat Mar 21 21:36:06 2020 JanRunstarget incident 
in run 66 or 67 we had a single ESR cycle for which the target didn't switch off for new injection and deceleration etc.
Very likely the DAQ also didn't get an OFF signal and collected OFF data to the TRIGGER=1 (ON data) branch.
As a consequence we collected about ~100 counts on the Si in one shot, which was about ~20 counts before this shot.

attached:
1.picture of the target density and beam current at this time.
  146   Sat Mar 21 21:11:46 2020 Sergiy,Ruijiu Runsrun entry - run067 
open file : run067

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 20:41 , first file: run067_0001.lmd
run stop  at 20:39 , last file:  run066_0xxx.lmd

_______________________________________________________________________________

time: 21:12 pm.

ON Rates
Si_X:      0 Hz
Si_Y:      0 Hz
Xray_35:   4 Hz
Xray_90:   29 Hz
Xray_145:  25 Hz
BaF_OR:     Hz

Si voltage:          60.01 V  
Si leakage current:  4.08 uA


SIS particles before:           ~2.5e9
ESR particles at injection:     n.n.
ESR particles after decel.:     
Target ON density:              6.e13


copy and repeat the above (below the line) every 30 minutes
  145   Sat Mar 21 20:39:38 2020 Sergiy,Ruijiu Runsrun entry - run067 
open file : run067

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 20:41 , first file: run067_0001.lmd
run stop  at 20:39 , last file:  run066_0xxx.lmd

_______________________________________________________________________________

time: 20:41 pm.

ON Rates
Si_X:      0 Hz
Si_Y:      0 Hz
Xray_35:   2 Hz
Xray_90:   43 Hz
Xray_145:  35 Hz
BaF_OR:     Hz

Si voltage:          60.01 V  
Si leakage current:  4.08 uA


SIS particles before:           ~2.9e9
ESR particles at injection:     n.n.
ESR particles after decel.:     
Target ON density:              6.43e13


copy and repeat the above (below the line) every 30 minutes
  144   Sat Mar 21 20:11:59 2020 SergiyRunsrun entry - run066 
open file : run066

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 19:42 , first file: run066_0001.lmd
run stop  at  , last file:  run065_0xxx.lmd

_______________________________________________________________________________

time: 20:12 pm.

ON Rates
Si_X:      0 Hz
Si_Y:      0 Hz
Xray_35:   4 Hz
Xray_90:   28 Hz
Xray_145:  14 Hz
BaF_OR:     Hz

Si voltage:          60.01 V  
Si leakage current:  4.08 uA


SIS particles before:           ~2.9e9
ESR particles at injection:     n.n.
ESR particles after decel.:     
Target ON density:              6.5e13


copy and repeat the above (below the line) every 30 minutes
  143   Sat Mar 21 19:42:33 2020 SergiyRunsrun entry - run066 
open file : run066

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 19:42 , first file: run066_0001.lmd
run stop  at  , last file:  run065_0xxx.lmd

_______________________________________________________________________________

time: 19:42 pm.

ON Rates
Si_X:      0 Hz
Si_Y:      0 Hz
Xray_35:   2 Hz
Xray_90:   27 Hz
Xray_145:  19 Hz
BaF_OR:     Hz

Si voltage:          60.02 V  
Si leakage current:  4.07 uA


SIS particles before:           ~3.1e9
ESR particles at injection:     n.n.
ESR particles after decel.:     
Target ON density:              6.9e13


copy and repeat the above (below the line) every 30 minutes
  142   Sat Mar 21 19:11:33 2020 SergiyRunsrun entry - run065 
open file : run065

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 18:42 , first file: run065_0001.lmd
run stop  at 19:42 , last file:  run064_0xxx.lmd

_______________________________________________________________________________

time: 19:12 pm.

ON Rates
Si_X:      0 Hz
Si_Y:      0 Hz
Xray_35:   5 Hz
Xray_90:   22 Hz
Xray_145:  22 Hz
BaF_OR:     Hz

Si voltage:          60.02 V  
Si leakage current:  4.08 uA


SIS particles before:           ~2.6e9
ESR particles at injection:     n.n.
ESR particles after decel.:     
Target ON density:              6.9e13


copy and repeat the above (below the line) every 30 minutes
  141   Sat Mar 21 18:42:43 2020 SergiyRunsrun entry - run065 
open file : run065

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 18:42 , first file: run065_0001.lmd
run stop  at  , last file:  run064_0xxx.lmd

_______________________________________________________________________________

time: 18:42 pm.

ON Rates
Si_X:      0 Hz
Si_Y:      0 Hz
Xray_35:   3 Hz
Xray_90:   30 Hz
Xray_145:  15 Hz
BaF_OR:     Hz

Si voltage:          60.02 V  
Si leakage current:  4.08 uA


SIS particles before:           ~3.1e9
ESR particles at injection:     n.n.
ESR particles after decel.:     
Target ON density:              6.8e13


copy and repeat the above (below the line) every 30 minutes
  140   Sat Mar 21 18:13:22 2020 ShahabGeneralrough comparison gas target off and on 
rough comparison of life time at 10 MeV/u when target off with on. more noise in background means weaker signal.
  139   Sat Mar 21 18:13:22 2020 SergiyRunsrun entry - run064 
open file : run064

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 17:42 , first file: run064_0001.lmd
run stop  at  , last file:  run064_0xxx.lmd

_______________________________________________________________________________

time: 18:12 pm.

ON Rates
Si_X:      0 Hz
Si_Y:      0 Hz
Xray_35:   1 Hz
Xray_90:   35 Hz
Xray_145:  14 Hz
BaF_OR:     Hz

Si voltage:          60.02 V  
Si leakage current:  4.10 uA


SIS particles before:           ~3.1e9
ESR particles at injection:     n.n.
ESR particles after decel.:     
Target ON density:              7e13


copy and repeat the above (below the line) every 30 minutes
  138   Sat Mar 21 17:34:10 2020 SergiyGeneralRecoils 
We started recording the data from the recoils using the MCP from Pierre-Michael's experiment. 
17:30 File opened: recoils1662.lmd.
data is stored at lxg1299: data.local2/hillenbrand/Laszlo
  137   Sat Mar 21 17:32:12 2020 SergiyRunsrun entry - run064 
open file : run064

beam: 118Te52+
energy: 10 MeV/u

purpose: data with TARGET ON. The target is back ON at 7e13.

Detector position (Si): -24 mm

run start at 17:30 , first file: run064_0001.lmd
run stop  at 15:04:21 , last file:  run064_0xxx.lmd

_______________________________________________________________________________

time: 17:30 pm.

ON Rates
Si_X:      0 Hz
Si_Y:      0 Hz
Xray_35:   2 Hz
Xray_90:   25 Hz
Xray_145:  30 Hz
BaF_OR:     Hz

Si voltage:          60.02 V  
Si leakage current:  4.10 uA


SIS particles before:           ~2e9
ESR particles at injection:     estimated ~1e6
ESR particles after decel.:     
Target ON density:              1.52e13


copy and repeat the above (below the line) every 30 minutes
  136   Sat Mar 21 17:30:08 2020 SergiyRunsrun entry - run064 
beam: 118Te52+
energy: 10 MeV/u

purpose: data with TARGET ON

Detector position (Si): -24 mm

run start at 17:30 , first file: run064_0001.lmd
run stop  at xx:xx , last file:  run0xx_0xxx.lmd


_______________________________________________________________________________

time: 17:30 .

ON Rates
Si_X:      0 Hz
Si_Y:      0 Hz
Xray_35:    2-3 Hz
Xray_90:   29 Hz
Xray_145:  17 Hz
BaF_OR:     Hz

Si voltage:          60.02 V  
Si leakage current:  4.04 uA


SIS particles before:           2.5e9
ESR particles at injection:     estimated ~1.3e6
ESR particles after decel.:     
Target ON density:              1.34e13


copy and repeat the above (below the line) every 30 minutes
  135   Sat Mar 21 17:21:57 2020 LaszloGeneralnew Target density 
Ulli and Nikos managed to set the target density to ~7E13  at 51K temperature

The cycle is checked again, it seems fine.
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