 Wed Mar 25 15:06:09 2020, Laszlo, Analysis, quick summary of the run numbers, 
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Sun Mar 22 12:53:43 2020, Laszlo, General, quick summary for the 118Te overnight measurement,
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Quoting Yury:
"The count rate is very low. We estimate that we store about 10^4 118Te particles at 10 AMeV. This is a very low number.
On Saturday we re-implemented the recoil setup (MCP from Pierre-Michelle) from the previous experiment and could verify the overlap between the stored |
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Sun May 23 02:16:47 2021, Laszlo, General, quick comparison between different scraping positions, 2021
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So far we did 3 scraping positions:
- 30mm away from beam axis (lmd72-75)
- 25mm away from beam axis (lmd78-80)
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Wed May 26 07:08:07 2021, Laszlo, Calibration, quick and dirty calibration coefficients for the Si channels, 2021
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The coefficients are produced only quick and dirty, S_x=1 was fixed to 1.
E = E_x = E_y = S_x*A_x = S_y*A_y
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Thu Mar 19 19:14:40 2020, Laszlo, General, primary beam measurement,
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Now our aim is to decelerate the primary beam (naked 124Xe) down to 10MeV/u. At this energy we can test our detectors and that how the scraping works. In
addition, in the E108b experiment, 124Xe(p,g), there is no measurement point at 10MeV/u. |
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Fri Oct 25 16:34:51 2019, Jan, Runs, prerun007 - MixedAlpha,
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save point: lxg1275:/datalocal1/e127/predata/prerun007
start: Fr 25.10.19 - 16:35
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Wed Oct 23 11:40:29 2019, Jan, Runs, prerun005 - MixedAlpha,
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save point: lxg1275:/datalocal1/e127/predata/prerun005
start: 23.10.19 - 11:40
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Fri Jun 7 14:28:09 2019, Jan, Runs, prerun003 - MixedAlpha,
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save point: lxg1275:/datalocal1/e127/predata/prerun003
~20min run
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Tue Jun 11 10:13:56 2019, Jan, Runs, prerun003 - MixedAlpha,
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save point: lxg1275:/datalocal1/e127/predata/prerun004
~10min run
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Fri Jun 7 13:52:32 2019, Jan, Runs, prerun002 - MixedAlpha,
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save point: lxg1275:/datalocal1/e127/predata/prerun002
~20min run
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Fri Jun 7 10:18:23 2019, Jan, Runs, prerun001 - MixedAlpha,
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save point: lxg1275:/datalocal1/e127/predata/prerun001-root
~2h run
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Sat Mar 21 11:25:47 2020, Laszlo, , possible misalignement between target and fragment beam,
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after 9hours of measurement we see only 19 counts on our targetON silicon detector histo. this low count rate can indicate two scenarios:
-we have a mismatch between the beam and the target (not much if any overlap)
-mabye the very low intersity of the beam (we cannot really monitor this, there are only estimates...)
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Wed Jun 5 11:29:13 2019, Jan, Detectors, position/channel calib.,
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This is the first position calibration done with the detector installed in the holder. The goal is to assign rough positions (top/bottom/left/right) to
PreAmp- and Shaper-channels.
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Fri Aug 9 13:14:09 2019, Laszlo, , pn channel simulations for 111Sn(p,g)112Sb experiment,
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The p,n channel opening for the 111Sn+p reaction is at 5.8895 MeV/u beam energy. Therefore, when choosing as 6MeV/u, 7MeV/u, 8MeV/u beam energies, there
is not much kinetic energy left for the outgoing neutron --> there are "less" nuclear levels populated above groundstate in 111Sb, they can be handled
explicitly. My simulations are based on TALYS results. The following steps did I made:
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Fri Aug 9 13:43:15 2019, Laszlo, Simulations, pn channel simulations for 111Sn(p,g)112Sb experiment, 12x
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The p,n channel opening for 111Sn beam is at 5.8895 MeV/u beam energy. Therefore, when choosing 6MeV/u, 7MeV/u,
8MeV/u beam energies, there is not much kinetic energy left for the excitation of the 111Sb nucleus --> there
can be "less" nuclear levels populated above groundstate of 111Sb. These "less" states can be handled explicitly
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Mon Mar 23 18:15:55 2020, Laszlo, General, noisy 90degree Xray det,
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Uwe found out, that there was some common ground effect between 90 and 145 degree detectors. after moving the grounds, we could record much more nicer (Gaus
shaped) peaks in the spectra. Now we continue with this settings |
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Mon Mar 23 06:40:17 2020, Shahab, Runs, no beam in SIS nor in ESR,
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| manic Monday morning. |
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Sat May 22 20:46:19 2021, Laszlo, Pierre.Michel, Enis, General, new scraper position, 2021
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The scraper was moved into 2.5mm in absolute which corresponds to 20mm away from the beam axis.
Pressluft Antriebe
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Sat May 22 22:29:48 2021, Laszlo, Pierre.Michel, Enis, General, new scraper position, 2021
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The scraper was moved into 7.5 mm in absolute which corresponds to 25 mm away from the beam axis.
Pressluft Antriebe
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Sat Mar 21 17:21:57 2020, Laszlo, General, new Target density,
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Ulli and Nikos managed to set the target density to ~7E13 at 51K temperature
The cycle is checked again, it seems fine. |