Fixed, e768s, Mon Jul 22 17:54:49 2019, Christian and Jeremie, AGATA, General, LiF, Comparison EGamma 19Ne, Q8 vs Q9 
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1) Beam velocity from VAMOS for AGATA doppler correction. Beta is understandable for the three main charge states seen (with Q9 and Q10 as the transfer
states, and centroid shifted higher for Q10 state, possibly because of reduced acceptance for the very high-lying states.
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Fixed, e768s, Mon Jul 22 08:23:02 2019, Christian - Bertrand, Sylvain, Frank, Francois, BEAM, General, LiF, Beam adjustment notes
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Adjustment of beam position, moved up by approximately 15mm on VAMOS FP, down by 2mm on target. AGATA rate reduced to normal, about 4k after 5 min equilibration,
no substantial satellite seen in direct beam on VAMOS FP. See separate entry for detailed discussion. Note, however that while beam intensity measurement
is 2.1e7, VAMOS trigger on reaction setting is approximately 1100. |
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Fixed, e768s, Sat Jul 20 11:33:01 2019, Christian, OTHER, General, , Previous Papers - gamma decays from states in the 4-MeV region
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This search was triggered by our lack of seeing the 3958keV line at the expected level. 2689 keV line observed (runs 112,115,116) as 55-60 counts. Expected
yield in 3958 keV line based on 80:20 branching and 1.5:1.0 efficiency is 10 counts. We see (at most) 2 in the full photo-peak for this line. (Theses two
counts are also lower than expected by about 20 keV.)
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Fixed, e768s, Sat Jul 20 12:06:00 2019, Christian, OTHER, General, , Previous Papers - gamma decays from states in the 4-MeV region
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Further to the previous post on gamma-ray lines, attached is Kanungo's paper on doppler-attenuation measurement of the 4033 line for lifetime measurement.
The lower-energy lines are, however, not included in the figures. |
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Fixed, e768s, Sat Jul 20 12:57:41 2019, Christian, OTHER, General, , Previous Papers - gamma decays from states in the 4-MeV region
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2019 paper by Hall, Bardayan, et al., gamma decays of 4.14 and 4.20 states, g-g-t triple coincidences.
Abstract:
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Fixed, e768s, Sun Jul 21 10:58:39 2019, Christian, AGATA, General, LiF, 13c resync
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13c resync at 10.57
lost 5 min agata data |
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Fixed, e768s, Sun Jul 21 17:57:08 2019, Christian, OTHER, General, , Previous Papers - gamma decays from states in the 4-MeV region
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In comment to previous entry (see thread), on the 2019 Hall paper on 19Ne transitions:
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Fixed, e768s, Sun Jul 21 17:59:04 2019, Christian, VAMOS, Hardware, LiF, Diamond detector trigger level and rate dependency
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The diamond detector has tended to increase in rate when it is hot (peaking late afternoon) and decreasing when it is cold (with a minimum just before sun-rise).
Some of the rate could therefore be temperature dependent noise levels rising above the trigger threshold.
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Fixed, e768s, Mon Jul 22 10:10:02 2019, Christian, OTHER, General, , Previous Papers - alpha-branching ratios for states in the 4-MeV region
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Branching ratio data overview from Tan et al. (PRL 2007, attached):
Ex/MeV B_alpha
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Fixed, e768s, Tue Jul 23 12:00:25 2019, Christian, BEAM, General, LiF, Profiler and beam current scaling since 11;10
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| See also AGATA elog and run-log entry |
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Fixed, e768s, Wed Jul 24 22:10:04 2019, Chloé, Yorick, ONLINE, General, LiF, Spectra Run 135 24/07/19 22:00 6x
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Fixed, e775s, Fri Feb 28 00:35:02 2020, Chloé, Franck, Michal, ONLINE, General, CD2, MUGAST Spectra
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Fixed, e775s, Thu Feb 27 19:29:24 2020, Chloé, Franck, ONLINE, General, CD2, MUGAST Spectra
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Fixed, e744s, Sun Apr 14 00:06:05 2019, Chloé, Fairouz, Sylvain, Damien, RUN, General, CH2, Log & Scalers -- Run 122 at 00:06 20x
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Fixed, e768s, Tue Jul 16 21:30:19 2019, Chloe Fougeres, OTHER, General, LiF, PACE4 fusion-evaporation
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| Simulated yields with beams 15N and 15O (4.7 MeV/u) on target LiF. |
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Fixed, e793s, Sat Mar 13 13:46:42 2021, Chloe F., OFFLINE, General, CD2, analysis gg
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> > Up to now data (run 46-51-52-53-55-56-60-61-62)
Decays seen from level scheme:
3- (451,280)keV
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Fixed, e768s, Mon Jul 29 02:45:22 2019, Chloe & Teodora, RUN, General, LiF, Screenshots run 156_1 20x
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Fixed, e768s, Mon Jul 29 04:38:32 2019, Chloe & Teodora, RUN, General, LiF, Beam
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| Low beam intensity from 4h30 am. |
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Fixed, e768s, Mon Jul 29 07:16:39 2019, Chloe & Teodora, RUN, General, LiF, Screenshots run 156_2 20x
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Fixed, e793s, Fri Mar 12 19:15:19 2021, Charlie, Nigel (watched by Wilton), RUN, General, CD2, Beam alignment tuning
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During part of run #61, Nigel tuned the beam alignment (using the MUST2 hit pattern as the diagnostic). The beam had shifted after the restarting of the
ISOL TIS. The beam came back at around 18:30 and tuning finished at 19:15.
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