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Fixed, e793s, Mon Mar 15 02:44:06 2021, Sarah, Louis, Charlie, RUN, General, CD2, Beam returned at 02:45 and stabilised by PCP
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| The PCP team were not able to learn anything new about the state of the source from their diagnostic tests, but they told us that they have stabilized the beam so there should be less fluctuations. They have also opened the slits to their maximum, which now gives us 5e5 pps. |
Fixed, e793s, Mon Mar 15 03:08:18 2021, Sarah, Louis, Charlie, RUN, General, CD2, Run 62 screenshots at 03h00 8x
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| Note that Vigru crashed and had to be reopened, so the canvases have only been populated with the data since beam returned at 02h45. |
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Fixed, e793s, Mon Mar 15 04:57:32 2021, Sarah, Louis, Charlie, RUN, General, CD2, run 62 screenshots at 04h50 8x
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| The beam intensity has been surprisingly high so far, considering the news we were given about the source a few hours ago. It has just taken a dip to ~4.5e5 in the last 10 mins or so. |
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Fixed, e793s, Mon Mar 15 06:27:54 2021, Sarah, Louis, Charlie, BEAM, General, CD2, Beam lost at 06h25. Returned at 06h30
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Electrostatic equipment from the source tripped. Should only be a few minutes of interruption.
EDIT:: Beam back after 5 mins. Screenshot attached. |
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Fixed, e793s, Mon Mar 15 06:59:02 2021, Sarah, Louis, Charlie, RUN, General, CD2, run 62 screenshots at 06h55 8x
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| Screenshots attached. Note that the fluctuation issues have returned after the "electrostatic trip"(?) but the beam pps remain pretty high. |
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Fixed, e793s, Mon Mar 15 07:13:48 2021, Louis, OFFLINE, General, CD2, 47K(d,t)46K
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| Preliminary analysis of the 37K(d,t)48K reaction. The 1944keV gamma transition is identified. Excitation energy was extracted using a cut on E-Tof Id in MUST2. More precise time calibration has to be performed on MUST2 to go further. |
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Fixed, e793s, Mon Mar 15 08:48:12 2021, Taras, cyril, Léo, ONLINE, General, CD2, run62 screenshots at 8am (15/03) 11x
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Fixed, e793s, Mon Mar 15 10:04:13 2021, Taras, cyril, Léo, ONLINE, General, CD2, Beam stopped at 10am
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| PCP stopped the beam at around 10am after an increase in counting rates |
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Fixed, e793s, Mon Mar 15 10:08:27 2021, Taras, cyril, Léo, RUN, General, CD2, New run scalers (beam stopped)
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Fixed, e793s, Mon Mar 15 10:18:37 2021, Taras, cyril, Léo, ONLINE, Hardware, CD2, Cats2 tripped
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Cats2 tripped with vamos, had to be reset
Beam is back |
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Fixed, e793s, Mon Mar 15 11:19:26 2021, Taras, cyril, Léo, ONLINE, General, CD2, Beam interruption at 11.19
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| Due to a safety alert, beam has been interrupted |
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Fixed, e793s, Mon Mar 15 11:36:37 2021, Taras, cyril, Léo, ONLINE, General, CD2, Beam back at 11h32
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| Beam is back at 11h32 |
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Fixed, e793s, Mon Mar 15 12:08:49 2021, Taras, cyril, Léo, ONLINE, Hardware, CD2, vamos dipole tripped at 12h05
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| Vamos dipole tripped at around 12h05, had to be reset |
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Fixed, e793s, Mon Mar 15 11:45:42 2021, Emmanuel, Chloé, OFFLINE, General, CD2, 48K level scheme from gg analysis
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Fixed, e793s, Mon Mar 15 12:24:35 2021, Wilton, Emmanuel, Chloé, OFFLINE, General, CD2, 48K level scheme from gg analysis
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| Fanstastic work, Emmanual and Chloe thanks. In a previous version, the 3522 was put in coincidence with the 143, but this has now changed? |
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Fixed, e793s, Mon Mar 15 03:37:32 2021, Louis, OFFLINE, General, CD2, Ex vs Eg analysis and C2S
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1) Summary of the the Ex vs Eg analysis with all the gamma ray identified highlighted in red. Green line shows the corresponding position of the excited states.
2) C2S extracted from DWBA analysis for the 0.143 (p3/2), 1.130 (p1/2), 1.985 (p1/2) and the 4 MeV (f7/2) states
3) A gamma ray transition is observed from the unbound states of 48K. Interesting is to notice that this 367 keV transition appear only for those states and that no high energy gamma are observed here.
4) usual Analysis plot |
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Fixed, e793s, Mon Mar 15 13:36:42 2021, Louis, Chloe, OFFLINE, General, CD2, Ex vs Eg analysis and C2S
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| Louis wrote: | 1) Summary of the the Ex vs Eg analysis with all the gamma ray identified highlighted in red. Green line shows the corresponding position of the excited states.
2) C2S extracted from DWBA analysis for the 0.143 (p3/2), 1.130 (p1/2), 1.985 (p1/2) and the 4 MeV (f7/2) states
3) A gamma ray transition is observed from the unbound states of 48K. Interesting is to notice that this 367 keV transition appear only for those states and that no high energy gamma are observed here.
4) usual Analysis plot |
=> as regard as the unbound 48K*>Sn at 6MeV, the gamma ray at 361keV comes from the 1st excited state in 47K.
the other low gamma ray (2234keV) is not observed in coincidence with Eg=280keV or Eg=143keV.
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Fixed, e793s, Mon Mar 15 13:59:28 2021, Taras, cyril, Léo, ONLINE, General, CD2, run63 screenshots at 14h00 11x
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Fixed, e793s, Mon Mar 15 15:04:13 2021, Taras, cyril, Léo, ONLINE, General, CD2, Beam interruption at 15h10
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| Beam interrupted at 15h10 for security problems, back at 15h20 |
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Fixed, e793s, Mon Mar 15 16:00:58 2021, Taras, cyril, Léo, ONLINE, General, CD2, Beam interruption at 15h30
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| Beam interrupted at 15h30 (security alarm), back at around 15h55 |
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Fixed, e793s, Mon Mar 15 16:42:54 2021, Laetitia, Serge, ONLINE, General, CD2, run63 screenshots at 16h35 11x
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Fixed, e793s, Mon Mar 15 18:41:14 2021, Laetitia, Serge, ONLINE, General, CD2, run63 screenshots at 18h30 11x
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| the slit L5 was opened around 18h to increase the yield and closed back a bit 10 min later (to 17pi) because CATS seemed to saturate |
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