| Status |
ExpNbr |
Date |
Author |
Type |
Category |
Target-Source |
Subject |
| Fixed | e744s |
Thu Apr 11 18:36:34 2019 |
Beyhan | BEAM | General | | before optimization : beam reconstructed profil with VAMOS and assoicated settings |
target : hole
cats2 out
about 4000 pps triggering VAMOS |
| Attachment 1: IMG_1583.jpg
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| Attachment 2: IMG_1582.jpg
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| Fixed | e768s |
Wed Jul 17 09:07:19 2019 |
mugast | BEAM | General | | beam settings |
| values as it is now |
| Attachment 1: 20190717_061639.jpg
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| Fixed | |
Wed Feb 26 15:04:29 2020 |
mugast | RUN | General | | beam retuning |
| Beam is retuned from PCP to improve its quality |
| Fixed | e744s |
Sat Apr 13 13:58:08 2019 |
Marion, Kseniia, Dieter, Didier, Guiseppe, IuliaH | BEAM | Hardware | CH2 | beam rate (read from CATS) as a function of time |
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| Attachment 1: rate_vs_time.pdf
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| Fixed | e793s |
Sat Mar 13 11:16:38 2021 |
Lynda, Laetitia, Chloe | BEAM | General | | beam lost and back |
we loose the beam around 11:12, it should be back in few minutes according to pcp.
11:18: the beam is back (3.5E5 pps) |
| Pending | e793s |
Thu Mar 11 09:02:20 2021 |
mugast | BEAM | Hardware | CD2 | beam interruption |
| power supply trip on the accelerator beam is off for about 30min |
| Fixed | e768s |
Tue Jul 16 12:10:05 2019 |
Francois | BEAM | General | LiF | beam intensity, normalisation, elastic scattering 7Li |
In 2005, the 15O1+ beam was measured at 6x10^7 pps after the CIME cyclotron, contaminated with ~nAe of 15N1+.
After stripper (aluminium stripper at LISE) the purity was 97 % of 15O8+ with 3 % of 15N8+.
The 15N(7Li,7Li)15N cross section has been measured at 27.3 MeV (18.6 MeV CM) (see images). It is Rutherford at angles <10° CM.
In the present experiment, the energy CM is 22.4 MeV CM.
10°CM correspond to 85° in lab, 7Li with energy ~ 0.46 MeV.
Conclusions:
- it is not possible to normalise to the Rutherford cross section of 7Li
- expected beam intensity at nominal should be > 10^7 pps (a factor less than 2 between 1+ and 3+, 40% of 8+ after stripper) |
| Attachment 1: scattering.jpg
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| Attachment 2: scattering2.jpg
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| Fixed | e768s |
Sun Jul 21 17:02:25 2019 |
Marlène | BEAM | General | | beam intensity in the afternoon |
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| Attachment 1: run_119_scaler3.png
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| Fixed | e768s |
Sun Jul 21 22:40:23 2019 |
Kseniia & Nicolas | BEAM | General | N/A | beam check run121 |
| best intensity ever: 2.2e7 pps |
| Attachment 1: IMG_20190721_223618_beamcheck.jpg
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| Attachment 2: scalers_1.png
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| Fixed | e793s |
Sat Mar 13 13:46:42 2021 |
Chloe F. | OFFLINE | General | CD2 | analysis gg |
> > Up to now data (run 46-51-52-53-55-56-60-61-62)
Decays seen from level scheme:
3- (451,280)keV
0- (1344,143)keV
2- (3522,143)keV
1- (1272,143)keV
? 997keV coin. with 143keV => apparent on second gate projection plot
? 3440keV coin. with 143keV ? |
| Attachment 1: gg_e793s_gat.png
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| Attachment 2: gg_e793s_gat_2.png
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| Fixed | e786s |
Wed Jun 26 13:48:35 2019 |
mugast | OFFLINE | General | Cryo-3He | analysis |
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| Attachment 1: Ekine_Ex_run56_58.png
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| Fixed | e744s |
Mon Apr 15 21:58:15 2019 |
iulian Beyhan | VAMOS | Hardware | CH2 | Xf efficiency evolution |
Xf efficiency (normalized to CATS intensity) is directly linked with the beam intensity. The image below show a comparison between normalised Xf spectra on 3 different runs taken with different beam intensities:
Run 122 2019-04-13 06:31:00 4e+4
Run 130 2019-04-15 15:23:00 2.5e+5
Run 131 2019-04-15 20:41:00 2.5e+4
No dependence on time, dependence on intensity. |
| Attachment 1: Xf_efficency_change_122_vs_130_vs_131.pdf
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| Fixed | com2019 |
Sat Apr 6 10:09:53 2019 |
Adrien Matta | OFFLINE | General | CD2 | We see d,4He |
| Adrien Matta wrote: | We see more (d.3he) than dt
there seems to be another reaction going up to 40deg Lab |
The line at 40 deg matched 16O(d,4He)14N g.s. |
| Fixed | com2019 |
Sat Apr 6 08:38:51 2019 |
Adrien Matta | OFFLINE | General | CD2 | We see d,3he more than d,t at forward angle |
We see more (d.3he) than dt
there seems to be another reaction going up to 40deg Lab |
| Attachment 1: Kine256_0-256_3.pdf
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| Fixed | e768s |
Mon Jul 22 06:32:40 2019 |
Faïrouz & Sylvain | RUN | General | LiF | We put the Faraday cup because AGATA can not cope with the very high counting rate (>110kHz) |
We will call Emmanuel & Bertrand.
We stopped the run 122, waiting for Bertrand to come and work on the beam size and focalization. |
| Pinned | e768s |
Sat Jul 27 06:47:16 2019 |
Sylvain & Andrea | OTHER | General | LiF | Water tray of MUGAST air conditioner cooling system is almost full |
During a room inspection it was notice that the water tray used as an output of the fan system which is cooling MUGAST electronic crates is almost full of water. The floor is dry but the we suspect a leakage from the air conditioner. To avoid to flood the floor we took some of the water and put in in the water tray of the fan system located in front of VAMOS.
One would probably need during the day to investigate the origin of this water. |
| Fixed | e768s |
Tue Jul 23 19:21:50 2019 |
Nicolas | OTHER | Social | N/A | Waiting end of canicule (and beam!) |
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| Attachment 1: IMG_20190723_173257.jpg
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| Fixed | e744s |
Sat Apr 13 23:02:27 2019 |
Valerian, Freddy and Iulian | OFFLINE | General | CH2 | Very preliminary results for two protons |
| Join are very preliminary spectra for the two protons events gated on 13N in VAMOS with a multiplicity 2 event in MUST2. |
| Attachment 1: TwoProtons_run122_0_1.png
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| Fixed | e744s |
Sat Apr 13 23:19:57 2019 |
Valerian, Freddy, Iulian and Fairouz | OFFLINE | Software | CH2 | Very preliminary results for two protons |
| Join are very preliminary spectra for the two protons events gated on 13N in VAMOS with a multiplicity 1 event in MUST2. This condition adds a lot of noise. |
| Attachment 1: TwoProtonsMult1_run122_0_1.png
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| Fixed | e793s |
Sat Mar 13 02:31:33 2021 |
Faïrouz, Juan Lois | VAMOS | Hardware | CD2 | Vamos tripped @ 2h32 & fixed |
|