| ID |
Date |
Author |
Category |
Subject |
Text |
 |
|
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 |
|
|
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 |
|
|
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.
|
|
|
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. |
|
|
32
|
Sat Mar 28 11:28:11 2020 |
Ragan, RuiJiu, Mei, Yuri, Tino | General | ESR open | ESR is open now |
|
|
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 |
|
|
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 |
|
|
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.
|
|
|
42
|
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.
|
|
|
43
|
Sat Mar 28 18:11:13 2020 |
Alex, Yuri | General | no beam in the ESR | Yuri and Sergey (on phone) have investigated
extensively the problem with having no beam
in the ESR. The FRS has been checked and |
|
|
49
|
Sun Mar 29 12:56:02 2020 |
Ragan, RuiJiu | General | Good positive signals from MSCF | As we (RuiJiu and me) changed the jumpers
of MSCF 1, 2,3 and 4 yesterday, now we see
nice positive signals on picoscope.
|
|
|
57
|
Sun Mar 29 20:32:20 2020 |
Ragan | General | Template for Pb halflive measurement | beam:
energy:
|
|
|
61
|
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 ) |
|
|
65
|
Mon Mar 30 01:07:29 2020 |
Ragan | General | Problem with SIS runstop: 0256 | There is problem with SIS
Run stop: 0257.lmd (at1:06) |
|
|
67
|
Mon Mar 30 01:43:58 2020 |
Ragan | General | First measurement with 206Pb81+ beam pattern details | The following shows the pattern for first
measurement in ESR (gas jet is on for = 60*5
secs = 300 secs as it can be seen on step |
|
|
74
|
Mon Mar 30 04:15:29 2020 |
Ragan | General | Second measurement with 206Pb81+ beam at I_cooler = 200 mA | In the picture below, a very nice storage
of 206Pb81+ at 200 mA electron cooler current
for no gas jet target can be seen in ESR. |
|
|
79
|
Mon Mar 30 06:34:47 2020 |
Ragan | General | Second measurement with 206Pb81+ beam at I_cooler = 20 mA | In the ESR picture below, the decay of beam
is very fast initially for few minutes and
then the decay is constant. But why does |
|