 Fri Mar 20 19:37:43 2020, Jan, Calibration, Xray energies - rough 1. calibration ,
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-- E calibration seems to have changed! ---
This calibration is based on the source data taken before the experiment:
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Sun Apr 5 20:34:42 2020, Laszlo, Calibration, Xray energies - 1. calibration, 8x
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30angle: E[keV] = 0.0158507 *ch-2.07456
90angle: E[keV] = 0.01950*ch-2.76
145angle: E[keV] = 0.017988 *ch-1.809
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Sat May 22 21:33:22 2021, Laszlo, Detectors, Xray detectors are filled at 90 and 35, 2021
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Sat Mar 21 01:25:07 2020, Laszlo, General, Vacuum while moving in the detector for fragment measurement,
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Stayed below E-10
Start:2.42E-11
Top after moving: 4.144E-11 |
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Fri Mar 20 23:43:26 2020, Laszlo, General, Vacuum while moving in the detector at yesterday evening,
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Vacuum before DSSSD movement: 1.5844E-11
Top value after movement: 3.64378E-11
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Sun Mar 22 12:01:44 2020, Esther, Ragan, General, Vacuum problem with SIS,
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| There is some problem with the vacuum in SIS and thus data recording is stopped. |
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Thu May 20 18:13:55 2021, Laszlo, General, Vacuum change while Si movement, 2021
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The vacuum remained in the E-10 range after moving the dsssd. The oscillation in the vacuum.values are due to the
magnets ramping up and down |
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Wed Oct 23 14:51:43 2019, Jan, Laszlo, DAQ, VME modules & main.cfg,
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Here is the current list of VME modules in our DRASI daq including HW addresses:
Slot <module> [HW addr.]
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Thu Jun 24 09:43:01 2021, Jan Glorius, DAQ, Unpacker, 2021
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The unpacker used for the production runs of E127b is located at
/u/litv-exp/unpacker/unpackexps/e127_TO_2021_with_ECL
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Wed Apr 28 09:12:47 2021, Jan, Yuri, Detectors, UI-diagram, 2021
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The UI-curve of the detector
U I
10 0.11
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Tue May 25 15:56:48 2021, Robert/Shahab, Accelerator, Trafo, 2021
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| Trafo was set to 0 |
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Thu May 20 18:11:24 2021, Laszlo, General, Touching the beam with Dsssd - current change, 2021
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Mon Jul 8 14:57:07 2019, Yuanming Xing, Detectors, The measurement of the tilting angle,
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As shown in the figure, the detector is tilted by a certain angle which is about 45 degree.
The tilted angle is defined as angle B.
We measured angle A using the vertical laser line (red) and papers with a straight line edge. So we can marked
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Fri Oct 23 12:58:12 2020, Jan, Detectors, Test of 2nd DSSSD (gen2), 2021
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This is the documentation of the source tests with the 2nd micron DSSSD of 2nd generation (label 3288-17, thickness 529um)
The detector is put into vacuum (~5e-6 mbar) in our test chamber. The source is positioned a few cm above (see fotos).
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 Fri Nov 20 15:53:37 2020, Jan, Analysis, Test of 2nd DSSSD (gen2), 2021
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Here is the analysis of the test runs with the 2nd DSSD (gen2) using the quick_si_plots.c script attached.
All 32 Si channels are working with acceptable performance.
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Wed Jun 2 09:14:04 2021, Jan, General, Telegram Chat Export, 2021
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Attached is the exported Telegram chat.
There is the simple PDF and the zip-file containing the chat in json-format as well as all media files. |
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Sun Mar 22 01:36:14 2020, Pierre-Michel, Analysis, Target overlap, 10x
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Here are the data file for the rates of the recoil detector for different values of the target bump. The average rate over background is proportional to
the target overlap.
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Fri Mar 20 22:51:36 2020, Laszlo, General, Target on signal change,
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From the previous settings:
JetOn
mashine number 11
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Sat Mar 21 10:20:27 2020, Ragan, Alex, General, Target LN2,
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| The LN2 Dewar on the ESR roof has been refilled. |
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Fri Mar 20 01:11:58 2020, Laszlo, General, Target - beam jntersection,
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We have managed to find the target position with the beam by looking at the xray spectra. The trick was that at 10mev we
only have a low increase in the xray rates, so.we went for 400Mev/u where the rate change was dramatic (see in the
picture) |