 Fri May 28 02:51:02 2021, Mario, Sophia, Runs, Run 0168, 2021
|
only beam in the first minutes
No. of stacks: 10
length SC10: 2x 5.5s
bump ge01sq2f (sc10): -20 mm
bump target (sc10): -12.8 mm
open file : e127b_run0168.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): +2.0 mm
run start: 02:50:30 28.05.2021
run stop: 03:12:20 28.05.2021
_______________________________________________________________________________
ON Rates
Si_ON_bdt: ~3 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: 1.8e6 (stacked)
ESR particles after decel.: Unreadable
Target ON density: 1.0e14 |
|
Fri May 28 03:15:01 2021, Mario, Sophia, Runs, Run 0169, 2021
|
only beam in the first minutes
No. of stacks: 10
length SC10: 2x 5.5s
bump ge01sq2f (sc10): -20 mm
bump target (sc10): -12.8 mm
open file : e127b_run0169.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): +2.0 mm
run start: 03:41:27 28.05.2021
run stop: 04:43:38 28.05.2021
_______________________________________________________________________________
ON Rates
Si_ON_bdt: ~3 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: 1.8e6 (stacked)
ESR particles after decel.: Unreadable
Target ON density: 1.0e14 |
|
Fri May 28 04:45:06 2021, Mario, Sophia, Runs, Run 0170, 2021
|
only beam in the first minutes
No. of stacks: 10
length SC10: 2x 5.5s
bump ge01sq2f (sc10): -20 mm
bump target (sc10): -12.8 mm
open file : e127b_run0170.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): +2.0 mm
run start: 04:43:54 28.05.2021
run stop: 05:44:18 28.05.2021
_______________________________________________________________________________
ON Rates
Si_ON_bdt: ~3 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: 1.8e6 (stacked)
ESR particles after decel.: Unreadable
Target ON density: 1.0e14 |
|
Fri May 28 05:46:15 2021, Mario, Sophia, Runs, Run 0171, 2021
|
only beam in the first minutes
No. of stacks: 10
length SC10: 2x 5.5s
bump ge01sq2f (sc10): -20 mm
bump target (sc10): -12.8 mm
open file : e127b_run0171.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): +2.0 mm
run start: 05:44:28 28.05.2021
run stop: 06:47:06 28.05.2021
_______________________________________________________________________________
ON Rates
Si_ON_bdt: ~3 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: 1.8e6 (stacked)
ESR particles after decel.: Unreadable
Target ON density: 1.0e14 |
|
Mon Mar 23 08:51:01 2020, Laszlo,Yury, Runs, run entry - run095,
|
open file : run095
beam: 124Xe54+
energy: 10 MeV/u
purpose: data with TARGET ON and SCRAPER in scraping poisition--> We expect to cut the Rutherford for now on.
Detector position (Si): -27 mm
GE01DD1IG position (Scraper): 9 mm
run start at 08:17, first file: run095_0001.lmd
run stop at , last file: run_0xxx.lmd
_______________________________________________________________________________
time: 08:10
ON Rates
Si_X: 4 Hz
Si_Y: 4 Hz
Xray_35: 6 Hz
Xray_90: 60 Hz
Xray_145: 22 Hz
BaF_OR: ---
Si voltage: 60.02 V
Si leakage current: 4.30 uA
SIS particles before: 2.5e8
ESR current at injection: 5.7e7
ESR particles after decel.: 1e7 (it is hard to catch exactly)
Target ON density: 4.3e13
copy and repeat the above (below the line) every 30 minutes |
|
Mon Mar 23 09:22:12 2020, Laszlo,Yury, Runs, run entry - run096,
|
open file : run096
beam: 124Xe54+
energy: 10 MeV/u
purpose: data with TARGET ON and SCRAPER in scraping poisition--> We expect to cut the Rutherford for now on.
Detector position (Si): -27 mm
GE01DD1IG position (Scraper): 9 mm
run start at 09:20, first file: run096_0001.lmd
run stop at 09:32, last file: run_0xxx.lmd
_______________________________________________________________________________
time: 08:10
ON Rates
Si_X: 5 Hz
Si_Y: 5 Hz
Xray_35: 2 Hz
Xray_90: 63 Hz
Xray_145: 21 Hz
BaF_OR: ---
Si voltage: 60.02 V
Si leakage current: 4.23 uA
SIS particles before: 2.7e8
ESR current at injection: 5.3e7
ESR particles after decel.: 1e7 (it is hard to catch exactly)
Target ON density: 4.1e13
copy and repeat the above (below the line) every 30 minutes |
|
Mon Mar 23 10:08:12 2020, Laszlo,Yury, Runs, run entry - run098,
|
open file : run098
beam: 124Xe54+
energy: 10 MeV/u
SIS is back in business again!
purpose: data with TARGET ON and SCRAPER in scraping poisition--> We expect to cut the Rutherford for now on.
Detector position (Si): -27 mm
GE01DD1IG position (Scraper): 9 mm
run start at 10:12, first file: run098_0001.lmd
run stop at , last file: run_0xxx.lmd
_______________________________________________________________________________
time: 08:10
ON Rates
Si_X: 2 Hz
Si_Y: 2 Hz
Xray_35: 2 Hz
Xray_90: 57 Hz
Xray_145: 22 Hz
BaF_OR: ---
Si voltage: 60.02 V
Si leakage current: 4.17 uA
SIS particles before: 2.7e8
ESR current at injection: 5.3e7
ESR particles after decel.: 8e6 (it is hard to catch exactly)
Target ON density: 3.5e13
copy and repeat the above (below the line) every 30 minutes |
Mon Mar 23 10:26:36 2020, Laszlo,Yury, Runs, run entry - run099, 
|
open file : run099
beam: 124Xe54+
energy: 10 MeV/u
SIS intensity increased factor 2: 1.25e9, also Sergey tried to optimize these phase shift losses.
purpose: data with TARGET ON and SCRAPER in scraping poisition--> We expect to cut the Rutherford for now on.
Detector position (Si): -27 mm
GE01DD1IG position (Scraper): 9 mm
run start at 10:12, first file: run099_0001.lmd
run stop at , last file: run_0xxx.lmd
_______________________________________________________________________________
time: 10:25:59
ON Rates
Si_X: 2 Hz
Si_Y: 2 Hz
Xray_35: 1 Hz
Xray_90: 70 Hz
Xray_145: 22 Hz
BaF_OR: ---
Si voltage: 60.02 V
Si leakage current: 4.17 uA with spikes for 3s long after injection roughly 10uA
SIS particles before: 2.7e8
ESR current at injection: 5.8e7?? (we see a bug: like the number of particles increases in the bunching phase)
ESR particles after decel.: 1e7 (it is hard to catch exactly)
Target ON density: 5.4e13
copy and repeat the above (below the line) every 30 minutes |
|
Mon Mar 23 11:00:29 2020, Laszlo,Sergey, Runs, run entry - run100 - SCRAPER removed!,
|
open file : run100
beam: 124Xe54+
energy: 10 MeV/u
SIS intensity increased factor 2: 1.25e9, also Sergey tried to optimize these phase shift losses.
purpose: data with TARGET ON and SCRAPER OFF .--> papa Rutherford should come now
Detector position (Si): -27 mm
GE01DD1IG position (Scraper): 9 mm
run start at 10:12, first file: run100_0001.lmd
run stop at , last file: run_0xxx.lmd
_______________________________________________________________________________
time: 11:01
ON Rates
Si_X: 2 Hz
Si_Y: 2 Hz
Xray_35: 1 Hz
Xray_90: 70 Hz
Xray_145: 22 Hz
BaF_OR: ---
Si voltage: 60.02 V
Si leakage current: 4.2 uA with spikes for 3s long after injection roughly 10uA
SIS particles before: 2.7e8
ESR current at injection: 5.8e7?? (we see a bug: like the number of particles increases in the bunching phase)
ESR particles after decel.: 1e7 (it is hard to catch exactly)
Target ON density: 4.6e13
copy and repeat the above (below the line) every 30 minutes |
|
Mon Mar 23 11:17:42 2020, Laszlo,Sergey, Runs, run entry - run101,
|
open file : run101
beam: 124Xe54+
energy: 10 MeV/u
we run at MAX INTENSITY as we can: SIS was increased to its top, but unfortunately we still end up with 1.5e9 at injection from SIS. Sergey also optimized some stuff.
purpose: data with TARGET ON and SCRAPER OFF --> this leakage current spikes associated with primary scattering from the scraper edge seem to disappear, but we get still 10kHz rate on the detector a few sec after injection(this small "bump"
after the peak in the Si current - see the picture below)
Detector position (Si): -27 mm
GE01DD1IG position (Scraper): 9 mm
run start at 10:12, first file: run101_0001.lmd
run stop at , last file: run_0xxx.lmd
_______________________________________________________________________________
time: 11:08
ON Rates
Si_X: 1 Hz
Si_Y: 1 Hz
Xray_35: 2 Hz
Xray_90: 62 Hz
Xray_145: 26 Hz
BaF_OR: ---
Si voltage: 60.02 V
Si leakage current: 4.29 uA with spikes for 3s long after injection roughly 10uA
SIS particles before: 2.7e8
ESR current at injection: 5.8e7?? (we see a bug: like the number of particles increases in the bunching phase)
ESR particles after decel.: 7e6? (it is hard to catch exactly)
Target ON density: 4.2e13
copy and repeat the above (below the line) every 30 minutes |
|
Mon Mar 23 11:35:52 2020, Laszlo,Sergey, Runs, run entry - run102,
|
open file : run102
beam: 124Xe54+
energy: 10 MeV/u
we run at MAX INTENSITY as we can: SIS was increased to its top, but unfortunately we still end up with 1.5e9 at injection from SIS. Sergey also optimized some stuff.
purpose: data with TARGET ON and SCRAPER OFF
Detector position (Si): -27 mm
GE01DD1IG position (Scraper): 9 mm
run start at 10:12, first file: run101_0001.lmd
run stop at , last file: run_0xxx.lmd
_______________________________________________________________________________
time: 11:08
ON Rates
Si_X: 1 Hz
Si_Y: 1 Hz
Xray_35: 2 Hz
Xray_90: 62 Hz
Xray_145: 26 Hz
BaF_OR: ---
Si voltage: 60.02 V
Si leakage current: 4.29 uA with spikes for 3s long after injection roughly 10uA
SIS particles before: 2.7e8
ESR current at injection: 5.8e7?? (we see a bug: like the number of particles increases in the bunching phase)
ESR particles after decel.: 7e6? (it is hard to catch exactly)
Target ON density: 4.2e13
copy and repeat the above (below the line) every 30 minutes |
|
Sat Mar 21 02:00:08 2020, Laszlo, Tino, Oliver, Runs, run entry - run051,
|
Beam is back at 01:59 am.
Open file: runstart051
beam: 118Te52+
energy: 10 MeV/u
purpose: data with TARGET ON
Detector position (Si): -24 mm
run start at 01:59 , first file: run051_0001.lmd
run stop at xx:xx , last file: run0xx_0xxx.lmd
_______________________________________________________________________________
time: 10:30
ON Rates
Si_X: 0-1 Hz
Si_Y: 0-1 Hz
Xray_35: 2 Hz
Xray_90: 33 Hz
Xray_145: 33 Hz
BaF_OR: - Hz
Si voltage: 60.02 V
Si leakage current: 3.98 uA
SIS particles before: 2.3e9
ESR particles at injection: estimated ~10^5 - 10^4
ESR particles after decel.:
Target ON density: 1.46e13
copy and repeat the above (below the line) every 30 minutes |
|
Sat Mar 21 02:15:19 2020, Laszlo, Tino, Oliver, Runs, run entry - run051,
|
Open file: runstart051
beam: 118Te52+
energy: 10 MeV/u
purpose: data with TARGET ON
Detector position (Si): -24 mm
run start at 01:59 , first file: run051_0001.lmd
run stop at xx:xx , last file: run0xx_0xxx.lmd
_______________________________________________________________________________
time: 01:59 am.
ON Rates
Si_X: 0-1 Hz
Si_Y: 0-1 Hz
Xray_35: 2 Hz
Xray_90: 33 Hz
Xray_145: 33 Hz
BaF_OR: - Hz
Si voltage: 60.02 V
Si leakage current: 3.98 uA
SIS particles before: 2.3e9
ESR particles at injection: estimated ~10^5 - 10^4
ESR particles after decel.:
Target ON density: 1.46e13
copy and repeat the above (below the line) every 30 minutes |
|
Sat Mar 21 02:31:48 2020, Laszlo, Tino, Oliver, Runs, run entry - run051,
|
Open file: runstart051
beam: 118Te52+
energy: 10 MeV/u
purpose: data with TARGET ON
Detector position (Si): -24 mm
run start at 01:59 , first file: run051_0001.lmd
run stop at xx:xx , last file: run0xx_0xxx.lmd
_______________________________________________________________________________
time: 02:31 am.
ON Rates
Si_X: 0-1 Hz
Si_Y: 0-2 Hz
Xray_35: 1-3 Hz
Xray_90: 39 Hz
Xray_145: 21 Hz
BaF_OR: - Hz
Si voltage: 60.01 V
Si leakage current: 3.98 uA
SIS particles before: 2.3e9
ESR particles at injection: estimated ~10^5 - 10^4
ESR particles after decel.:
Target ON density: 1.46e13
copy and repeat the above (below the line) every 30 minutes |
|
Sat May 22 20:46:19 2021, Laszlo, Pierre.Michel, Enis, General, new scraper position, 2021
|
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 |
|
Sat May 22 22:29:48 2021, Laszlo, Pierre.Michel, Enis, General, new scraper position, 2021
|
The scraper was moved into 7.5 mm in absolute which corresponds to 25 mm away from the beam axis.
Pressluft Antriebe
Position 1
GE01DD1IG (SC12) 7.5 mm
Position 2
GE01DD1IG (SC9) 7.5 mm |
|
Sun Mar 15 17:12:40 2020, Laszlo, Jan, Detectors, new Ortec spec amps ,
|
We are now using new SpecAmps for the x-ray detectors from ORTEC, they deliver much improved resolution but have other strange effects as discribed in the next entry. |
|
Sun Mar 15 17:13:21 2020, Laszlo, Jan, Calibration, the x-ray gate issue,
|
We found a strange behaviour of our ADC gates for the x-ray detectors.
The setting as shown in the foto below corresponds to a delay of 5 us and a gate length of 15 us.
This is the only setting that produces nice spectra, even though the signals and gate are not aligned.
The setting is extremely sensitive to the delay 4 us still works but 3 or 7 us give already reduced energy values and beyond these values the spectra disapears.
For now it was decided to operate with this not-understood settings because the result is pretty good...
However, further investigation to understand whats happening would be desirable.
Additional note:
This effect appeared after using the new ortec SpecAmps. Before this we used old Tennelec Amps which delivered horrible resolution, but the gates and signals could be matched as expected at this time. |
|
Wed Mar 18 09:53:28 2020, Laszlo, Jan, General, vacuum after opening gate valve,
|
Gate valve to DSSSD setup was opened on Tue 17.03. ~9:00
The vacuum on Wed 18.03. ~9:00 was
1.6e-10 mbar at DSSSD setup
1.0e-11 mbar at ESR dipole |
|
Sat Mar 21 22:57:28 2020, Laszlo, Jan, DAQ, changing 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 |