 Mon May 10 00:51:38 2021, Kanika, Alex, RuiJiu, General, No beam in SIS
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| The beam was lost in SIS about 5 mins ago due to the failure of HF cavities. Operators are trying to solve the problem. |
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Mon May 10 00:41:20 2021, Chris C, Accelerator, no beam
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Beam gone ~0:34.
Working on getting it back.
Back in business ~0:57. |
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Mon May 10 00:08:26 2021, Rui-Jiu Chen, DAQ, Change reference level to -60dBm
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Start a new run. The data of new run is in :
SC_2021-05-10_00-08-08
IQ_2021-05-10_00-08-08 |
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Mon May 10 00:00:49 2021, Ragan, Rui-Jiu, DAQ, Change reference level to -70dBm
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Start a new run. The data of new run is in :
SC_2021-05-09_23-56-42
IQ_2021-05-09_23-56-42 |
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Sun May 9 23:59:26 2021, Rui-Jiu Chen, DAQ, Start a new run.
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Start a new run. The data of new run is in :
reference level = -50dBm.
SC_2021-05-09_23-43-37
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Sun May 9 23:32:24 2021, Helmut, Accelerator, parammodi saves 8x
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Here are parammodi saves for TE-line and ESR for all four fragment settings:
For the first run of 72Ge (7.May) I do not have files.
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Sun May 9 23:28:25 2021, Kanika, Alex, Wolfram, Helmut, Shahab, Runs, return with the Ge setting of the last night
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starting filenames:
E143-410MHz-2021.05.09.23.28.24.018.tiq
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Sun May 9 23:24:49 2021, Helmut, Wolfram, Yuri, Accelerator, scraper optmisation for 72Ge
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We tried the scrapers a bit, because right of peak some background appeared.
The GE01DS_HI shows a strange effect,
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Sun May 9 22:31:23 2021, Helmut, Wolfram, Yuri, Accelerator, change to 72Ge
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we change back to 72Ge
just change SIS-energy E = 441.0 MeV/u
beamline energy after target E = 392.9 MeV/u
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Sun May 9 21:29:26 2021, Helmut, Wolfram, Yuri, Accelerator, target TE3UF shift
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We see a very strong line at the left end of spectrum, stronger than all other lines.
When we shift the target TE3UF_H from -35mm to -37mm it gete weaker, but -37mm is the end of drive.
In the other direction it becomes worse. At -25mm completely new peaks.
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Sun May 9 20:39:17 2021, Shahab, Runs, Subtracting the background
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| still in the search of 70-Se |
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Sun May 9 20:34:47 2021, Rui-Jiu Chen, Analysis, Comparison of frequency spectrum between 72Ge and other isotope 6x
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This some preliminary analysis results by using NTCAP data. The IQ rate of NTCAP is 20 MSamples/seconds. I analyzed data files recorded from May 7
17:39 to May 8 2:20. The frequency of 72Ge is bended by 4kHz at the beginning of some injections. In order to check whether this frequency bending is
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Sun May 9 19:03:02 2021, Rodostina, Oliver, Wolfram, Helmut, Yuri, Shahab, Runs, quadrupoles were down, fixed.
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Sun May 9 18:50:23 2021, Helmut, Wolfram, Yuri, Accelerator, changed to 70Se
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18:45 changed SIS, ESR setting for 70Se without predrilling blind change.
E-SIS = 446.55 MeV/u, is centerd as before on TE3UF target grid.
set beamline after taret as 78Kr 36+ E = 337.375 MeV/u
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Sun May 9 18:41:33 2021, Rodostina, Oliver, Wolfram, Helmut, Yuri, Shahab, Runs, stopped data taking for energy change
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last recorded filename:
E143-245MHz-2021.05.09.17.38.44.410.tiq
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Sun May 9 16:19:06 2021, Rodostina, Oliver, Wolfram, Shahab, Runs, Setting to 52Mn ????
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first filename in this recording:
E143-245MHz-2021.05.09.15.16.49.816.tiq |
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Sun May 9 14:19:44 2021, Yuri, Accelerator, Spectrum
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We accept larger m/q values than we like to. m/q(low) cut ~ 2.08. Decrease ESR energy from 369.2 -> 368.4 MeV/u
frequencies shifted by -37.5 kHz (at 60 MHz) |
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Sun May 9 13:53:07 2021, Yuri, Wolfram, Andrew, Liliana, Calibration, Change of energy: Back as before
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After looking at the spectrum it was concluded that the same isotopes, and no more, could be identified.
Now we change the energy back to 441.7 MeV/u and will open the scrappers to see if Mn comes in.
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Sun May 9 13:15:38 2021, Liliana Andrew, Runs, Stopped data taking during modifications for the beam energy
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Beam energy to be increase to move Mn into the ring.
First step we set the energy to 445 MeV.
The effect of the change can be seen on the plot: Right is how it was before and left after the change. |
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Sun May 9 12:53:01 2021, Desislava Kalaydjieva, Taka Yamaguchi, Analysis, Analysis, Morning shift, 9 May 9x
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For the whole morning shift there were no significant changes in the spectra.
Some of the obtained histograms are attached below.
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