| ID |
Date |
Author |
Category |
Subject |
Text |
 |
|
21
|
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. |
|
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22
|
Fri Mar 27 19:51:37 2020 |
Ragan | General | ESR Machine | By changing the tune to Qx=2.33, Qy=2.36 the
momentum acceptance was significantly improved.
A variation of the cooler voltage of 10300 |
|
|
23
|
Fri Mar 27 19:59:09 2020 |
Ragan | General | Beam stacking in ESR is achieved | Thanks to Sergey and Markus, stacking of primary
H-like 206Pb81+ beam in ESR is achieved.
|
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24
|
Fri Mar 27 20:05:43 2020 |
Ragan | General | H2 gas jet ready | Thanks to Nikos, stable H2 gas jet target
with 10^14 particles/cm^3 is ready.
(More information can be found on: https://ulpc24.gsi.de/cgi-bin/jet.py?gasart=Helium |
|
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25
|
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 |
|
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26
|
Sat Mar 28 01:14:19 2020 |
Ragan | General | Cross-section for capture and ionisation of 206Pb81+ with H2 target | Cross-section for capture and ionisation of
206Pb81+ with H2 gas jet target are calculated
using GLOBAL code.
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|
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27
|
Sat Mar 28 04:32:15 2020 |
Ragan | Detectors | Ionisation events on DSSSD | XY co-relation of DSSSD showing 206Pb82+ beam
hitting the CsISiPHOS detector present in
the inner pocket of ESR after the first dipole |
|
|
28
|
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 |
|
|
29
|
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.
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|
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30
|
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. |
|
|
31
|
Sat Mar 28 11:20:10 2020 |
Ragan, RuiJiu, Mei, Yuri, Tino | General | Reducing beam intensity in ESR | Yuri reduces beam intensity in the ESR to
reduce the countrate on the detectors. |
|
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32
|
Sat Mar 28 11:28:11 2020 |
Ragan, RuiJiu, Mei, Yuri, Tino | General | ESR open | ESR is open now |
|
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33
|
Sat Mar 28 12:19:21 2020 |
Ragan, RuiJiu | DAQ | Change of the polarity of Amplifiers | Since last night, the signals from the p-side
of all the Si pads were seen as negative
on picoscope.
|
|
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34
|
Sat Mar 28 13:09:11 2020 |
Mei,Yury, Tino, Ragan, Ruijiu | General | Shift plan | From Yury,
For now, measure the beam life time with |
|
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35
|
Sat Mar 28 13:19:56 2020 |
Ragan | Runs | Template | beam:
energy:
storage time:
|
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36
|
Sat Mar 28 14:19:24 2020 |
Ragan, RuiJiu, Mei, Yuri | General | Instructions to change the electron cooler current | Attached are the instructions on how to change
the electron cooler current for the lifetime
measurements of 206Pb81+ beam (interaction |
|
|
37
|
Sat Mar 28 15:07:40 2020 |
ruijiu | DAQ | start run | |
|
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38
|
Sat Mar 28 15:19:23 2020 |
ruijiu | | start run e121_run_0236.lmd | store 206Pb81+ beam inside ESR and measure
its halflife.
The HV of detector is off.
|
|
|
39
|
Sat Mar 28 15:23:05 2020 |
Alex, Ragan, Mei Bai | General | beam lifetime measurement | We see two species in the Schottky spectra
during the beam lifetime measurement without
the target. The one (probably the primiary |
|
|
40
|
Sat Mar 28 16:09:50 2020 |
Alex | General | no beam in the ESR | Ragan and Ruijiu went in the ESR for short
time to fix something with the slow control
of the silicon detector.
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