| ID |
Date |
Author |
Category |
Subject |
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132
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Fri Apr 3 10:06:15 2020 |
Shahab | Runs | Plots from Scopes |
Just two plots from the scopes for documentation:
magnets.png:
yellow: dipole
green and blue: quadrupoles
red: ESR current
kicker.png:
blue: SIS kicker
yellow: ESR kicker
green: SIS current
red: ESR current
trigger: SIS Kicker |
| Attachment 1: magnets.png
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| Attachment 2: kicker.png
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25
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Fri Mar 27 20:52:31 2020 |
Ragan | General | Plans for the measurement with 206Pb81+ |
We plan to measure:
1. Lifetime of H-like 206Pb81+ beam with two electron cooler currents:
a) 200 mA
b) 10 mA (so that recombination rate is less)
using MWPC (capture detector in outer pocket) and CsISiPHOS (loss detector in inner pocket).
2. To find the efficiency of the MWPC. |
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166
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Mon Apr 6 09:34:58 2020 |
Shahab | Runs | Pictures from one and a half hour measurement |
cheers! |
| Attachment 1: wideband_rec_001.PNG
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161
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Sun Apr 5 23:28:01 2020 |
Ragan, Alex, Esther | Runs | One-hour measurement (S2: 0/35 mm and S6: -20/7 mm) |
beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 1 hr
S2: 0/35 mm
s6: -20/7
purpose: data with TARGET ON
Detector position (CsISiPHOS): out of the ring
Detector position (MWPC): -60 mm
run start at 20:21, run0540.lmd
file running: 0549.lmd
_______________________________________________________________________________
time when accumulation starts: 23:04
time when storage starts: 23:42
time when storage ends: 00:42
I_cooler during storage time: -2 mA (20 mA)
I_cooler = 180 mA
I_SIS: 1.8e9
ESR particles after stacking: 2.2e6 (offset 3e5)
Number of stackings: 100
Target ON density: 4.24e12
Target on time for measurement: 10 mins (by event mode)
time spend at manipulation 13 : 3 mins
(i.e. time for which electron cooler is on after gas jet)
NTCAp file:
SC_2020-04-04_19-04-52
\IQ_2020-04-04_19-04-52
IQ rate: 8 MS/s
(saved in drive : O)
copy and repeat the above (below the line) for every storage time measurement/ |
| Attachment 1: 2020-04-05_23-42-50-224.png
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| Attachment 2: 2020-04-06_00-56-01-052.png
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| Attachment 3: 0A9DA63C-7DBD-42B3-9CE9-08E9785B33B2.jpeg
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| Attachment 4: C885A387-78BB-49BF-AD5C-D7FEAB8248DE.jpeg
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| Attachment 5: 7487031D-7B12-4ACF-B0C8-55D5B928C0CE.jpeg
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| Attachment 6: 3EE56236-447E-4EAE-8394-B1F05BC9D1C7.jpeg
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| Attachment 7: D809F5FB-214D-486B-A4F0-912FD2C0CB94.MOV
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123
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Thu Apr 2 21:10:57 2020 |
Ragan, Yuri, Sergey, Nikos | Runs | One hour measurement (S2:-10/35 mm) |
beam: 205Tl81+ (no scraping, Al ~1g/cm2)
energy: 400 MeV/u
storage time: 1 hrs
S2:-10/35 mm
purpose: data with TARGET ON
Detector position (CsISiPHOS): out of the ring
Detector position (MWPC): -60 mm
run start at 19:05 , first file: run0292.lmd
file running: 0293.lmd
_______________________________________________________________________________
time when accumulation starts: 19:23
time when storage starts: 19:36
time when storage ends: 20:36
I_cooler during storage time: -1 mA
I_cooler = 177 mA
I_SIS: 2.2e9
ESR particles after stacking: 2.6e6 (offset 1e5)
Number of stackings: 30
Target ON density: 3.44e12
Target on time for measurement: 10 mins (by event mode)
NTCAp file:
SC_2020-04-02_19-10-21
\IQ_2020-04-02_19-10-14
IQ rate: 8 MS/s
(saved in drive : p)
copy and repeat the above (below the line) for every storage time measurement |
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126
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Fri Apr 3 01:22:13 2020 |
Ragan, Pierre-Michel, Dima | Runs | One hour measurement (S2: 0/35 mm) |
beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 1 hr
S2: 0/35 mm
purpose: data with TARGET ON
Detector position (CsISiPHOS): out of the ring
Detector position (MWPC): -60 mm
run start at 19:05 , first file: run0292.lmd
file running: 0295.lmd
_______________________________________________________________________________
time when accumulation starts: 01:09
time when storage starts: 01:20
time when storage ends: 02:20
I_cooler during storage time: -1 mA
I_cooler = 174 mA
I_SIS: 1.8e9
ESR particles after stacking: 2.5e6 (offset 1e5)
Number of stackings: 30
Target ON density: 3.48e12
Target on time for measurement: 10 mins (by event mode)
time spend at manipulation 13 : 5 mins
(i.e. time for which electron cooler is on after gas jet)
NTCAp file:
SC_2020-04-02_19-10-21
\IQ_2020-04-02_19-10-14
IQ rate: 8 MS/s
(saved in drive : p)
copy and repeat the above (below the line) for every storage time measurement |
| Attachment 1: 8E469F1D-992F-4E96-A30A-022B0D1A0E5A.jpeg
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164
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Mon Apr 6 05:43:50 2020 |
Ragan, Laszlo, Nikos | Runs | One and a half hour measurement (S2: 0/35 mm and S6: -20/7 mm) |
beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 1.5 hr
S2: 0/35 mm
s6: -20/7
purpose: data with TARGET ON
Detector position (CsISiPHOS): out of the ring
Detector position (MWPC): -60 mm
run start at 20:21, run0540.lmd
file running: 0558.lmd
_______________________________________________________________________________
time when accumulation starts: 05:41
time when storage starts: 06:19
time when storage ends: 07:49
I_cooler during storage time: -1 mA (20 mA)
I_cooler = 179 mA
I_SIS: 1.75e9
ESR particles after stacking: 2.3e6 (offset 5e5)
Number of stackings: 100
Target ON density: 4.36e12
Target on time for measurement: 10 mins (by event mode)
time spend at manipulation 13 : 3 mins
(i.e. time for which electron cooler is on after gas jet)
NTCAp file:
SC_2020-04-06_00-59-46
\IQ_2020-04-06_00-59-38
IQ rate: 8 MS/s
(saved in drive : O)
copy and repeat the above (below the line) for every storage time measurement/ |
| Attachment 1: 2020-04-06_06-18-59-809.png
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| Attachment 2: 946073FA-3077-4CBF-900B-565BD19CF040.jpeg
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| Attachment 3: 10FEB6AE-653B-4803-9927-EEB5BF33D3ED.jpeg
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| Attachment 4: 2020-04-06_08-03-40-493.png
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148
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Sat Apr 4 17:32:01 2020 |
Ragan, Alex, Esther | General | No beam in ESR |
The beam is coming from SIS but doesn't arrive in ESR because the quadrupole magnets in ESR have failed.
Update (18:01): Problem has been resolved. |
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30
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Sat Mar 28 11:07:49 2020 |
Ragan, RuiJiu, Tino, | General | Nikos is changing gas jet target |
The gas jet target is now being changed from H2 to Ar by Nikos. |
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139
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Fri Apr 3 17:55:13 2020 |
Shahab | Runs | Nice picture from 205-Tl |
In this high contrast Schottky recording, the main three frequency peaks are resolved w.r.t. time from left to right:
203 Hg 80 +, 200 Hg 79+ and 205 Tl 81+
There are also some spurs visible, whose nature is not 100% sure. One possible explanation can be:
Since this is taken during the storage time (gas target still off), we have no separation between parent and daughter ions, the daughter 205 Pb 81+ basically has the same revolution frequency as parent. It is a possibility that after the decay, daughter ions are slowly cooled back to the nominal frequency. Daughter ions are highly charged and have a high velocity, so single ion sensitivity is expected. They come from all directions, but Schottky measures only the longitudinal plane. Symmetric spurs can hence be an indication of this. |
| Attachment 1: Tl-daughter_spurs.PNG
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21
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Fri Mar 27 13:40:54 2020 |
Ragan | General | NTCap start and shutdown information |
The attachment contains information on how to start and shutdown NTCap and bridge computer. |
| Attachment 1: ntcapmanual.pdf
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183
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Sun May 30 12:09:00 2021 |
Ragan | General | NTCAP |
Attached is the info given by Carsten.
The instructions to operate NTCAP are given on https://wiki.gsi.de/ESR_EXP/ManualOfNTCAP |
| Attachment 1: ntcap_carsten.pdf
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29
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Sat Mar 28 11:00:14 2020 |
Ragan, RuiJiu, Mei, Yuri, Tino | Detectors | Movement of detector |
10:51 am the CsISiPHOS is moved to 65 mm from 60 mm.The spot on the DSSSD is changed by 5 mm which confirms the hit of the beam.
11:05
Detector is moved back to 60 mm. |
| Attachment 1: IMG_20200328_110253.jpg
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| Attachment 2: IMG_20200328_110258.jpg
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170
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Thu Apr 9 11:16:35 2020 |
Ragan | General | Measurements done in the experiment |
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| Attachment 1: storage11.pdf
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| Attachment 2: storage12.pdf
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| Attachment 3: storage13.pdf
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118
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Thu Apr 2 07:01:32 2020 |
Ragan, Esther, Oliver | Runs | Measurement with 4 hrs storage time |
beam: 205Tl81+ (no scraping)
energy: 400 MeV/u
storage time: 4 hrs
purpose: data with TARGET ON
Detector position (CsISiPHOS): out of the ring
Detector position (MWPC): mm
run start at 01:48 , first file: run0287.lmd
file running: 0287.lmd
_______________________________________________________________________________
time when accumulation starts: 04:45
time when storage starts: 04:55
time when storage ends: 06:55
I_cooler during storage time: 10 mA
I_cooler = mA
I_SIS: 1.8e9
ESR particles after stacking: ~e5
Number of stackings: 20
Target ON density: 4e12
Target on time: 06:56:30
Target off time: 07:06:30
Target on time for measurement: 10 mins (by local mode)
NTCAp file:
SC_2020-04-01_16-36-43/0000xxx.iq.tdms
\IQ_2020-04-01_16-36-43/0000xxx.iq.tdms
IQ rate: 8 MS/s
(saved in drive : o)
copy and repeat the above (below the line) for every storage time measurement |
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115
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Thu Apr 2 02:46:57 2020 |
Ragan, Yuri, Sergey, Esther, Oliver | Runs | Measurement with 2 hrs storage time |
beam: 205Tl81+ (no scraping)
energy: 400 MeV/u
storage time: 2 hrs
(In the picture below, it can be seen that the beam cooled. On right most is the Tl beam and rest are the contaminants.)
purpose: data with TARGET ON
Detector position (CsISiPHOS): out of the ring
Detector position (MWPC): mm
run start at 01:48 , first file: run0287.lmd
file running: 0287.lmd
______________________________________________________
_________________________
time when accumulation starts: 02:08
time when storage starts: 02:21
time when storage ends: 04:21
I_cooler during storage time: 10 mA
I_cooler = mA
ESR particles after stacking:
Number of stackings: 20
Target ON density: 3.9e12
Target on time: 04:22:40
Target off time: 04:32:40
Target on time for measurement: 10 mins (by local mode)
NTCAp file:
SC_2020-04-01_16-36-43/0000xxx.iq.tdms
\IQ_2020-04-01_16-36-43/0000xxx.iq.tdms
IQ rate: 8 MS/s
(saved in drive : o)
copy and repeat the above (below the line) for every storage time
measurement |
| Attachment 1: E682FBC9-1374-4582-8202-C8AA5DC8E6D5.jpeg
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42
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Sat Mar 28 16:29:27 2020 |
Ragan, RuiJiu, Esther | General | Malfunction of several ESR machines |
The HKR crew informs us that several machines in ESR are showing malfunctions.
The on-call expert cannot be reached.
Update (16:36): On-call service has been informed.
Update (16:48): ESR cycle stopped. |
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28
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Sat Mar 28 04:50:34 2020 |
Ragan | Detectors | MWPC |
Alex and Pierre-Michel applied 1500 V to the anode and adjusted the threshold in Messhute.
x1 signal was small & noisy and rest of the signals were fine. |
| Attachment 1: 4475A53F-48AB-430E-8A22-7D92E5FEACBF.jpeg
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61
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Sun Mar 29 21:55:47 2020 |
Ragan | General | MWPC |
Alex goes to Messhute to check the signals from MPWC. After he completes, we start with the measurements with the primary beam ) |
| Attachment 1: Comparison.png
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9
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Tue May 28 08:36:14 2019 |
Jan | DAQ | MBS start & RFIO server |
You need a DAQ-PC and the RIO crate computer.
All of the DAQ proceedures laid out here are operated from inside the DAQ screen session.
Right now for e121 the following DAQ-setup is used: (might change in the future)
DAQ-PC: lxg0155
screen session: e121_daq @ lxg0155
RIO: r4l-47
DAQ dir: /esr/usr/litv-exp/2019Munich-Det
The most important commands:
on DAQ-PC
mbs - start mbs DAQ
rawDispRFIO64 - start RFIO server
in MBS shell
@startup - initialize MBS (only inside DAQ dir)
@connect - connect RFIO server (only if server running)
@runstart - open file for data writing
@runstop - close file
start acq - start DAQ
show acq - status of DAQ
show file - status of current file/RFIO server
The full proceedure for the DAQ:
- on DAQ-PC enter screen session:
litv-exp@lxg____:~$ screen -x e121_daq or create new screen session if non is exisiting:litv-exp@lxg____:~$ screen -S e121_daq - inside screen: go to 1st tab (MBS) and login to RIO if not yet done:
<Ctrl-a 0>
litv-exp@lxg____:~$ ssh r4l-47
- on RIO reset and start MBS
R4L-47 litv-exp > cd 2019Munich-Det
R4L-47 litv-exp > resl
R4L-47 litv-exp > mbs
mbs > @startup
- inside screen go to 2nd tab (RFIO)
<Ctrl-a 1> or create 2nd tab if not exisiting<Ctrl-a c> - start RFIO server on DAQ-PC
litv-exp@lxg____:~$ cd /u/litv-exp/rfio
litv-exp@lxg____:~$ ./rawDispRFIO64-wheezy
-I- 64 bit RFIO test server (lxg0155) listening on port 1974
forks './rawServRFIO64-wheezy' for each client request - inside screen go to 1st tab and connect MBS to RFIO server
<Ctrl-a 0>
mbs > @connect
mbs> show file
mbs> -R4L-47 :transport :Name of output device = RFIO
-R4L-47 :transport :current tape label = lxg0155 , opened
-R4L-47 :transport :current file name = , closed
-R4L-47 :transport : 0.000 MBytes written to tape
-R4L-47 :transport : 0.000 MBytes written to current file - start acquisition
mbs > start acq
mbs > show acq
...
-R4L-47 :util :Name of output device = RFIO
-R4L-47 :util :RFIO server lxg0155, file CLOSED
-R4L-47 :util : 0.000 [MB] written to tape, 0.000 to file
-R4L-47 :util :--------------------------------------------------------------
-R4L-47 :util :Collected: 61.1451 MB, 1866 Buffers, 131990 Events.
-R4L-47 :util :Rate : 33 KB/s, 1 Buffers/s, 71 Events/s
-R4L-47 :util :-------------------------------------------------------------- - open file / start a run
mbs > @runstart
-R4L-47 :transport :open file at server lxg0155::
-R4L-47 :transport :/data.local1/E121/predata/e121_run_1239.lmd - close file / stop a run
mbs > @runstop
-R4L-47 :transport :Rfio server lxg0155: closed file after 0.262 MB written:
-R4L-47 :transport :-I- remote output file /data.local1/E121/predata/e121_run_1239.lmd closed
mbs> -R4L-47 :transport :/data.local1/E121/predata/e121_run_1239.lmd
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