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Fixed, e793s, Thu Mar 11 15:48:14 2021, mugast, OFFLINE, General, N/A, Beam energy and Beta
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Beam energy entering G1: 7.6922 MeV/u (Beta= 0.1277)
CATS2 thickness: 2.8 um of Mylar in total + about 4 cm of isobutane at 4 mbar
7.62783 / 7.61264 / 7.54789
Beam energy after CATS: 7.54789 MeV/u (Beta= 0.1265)
Beam at mid CD2 target : 7.45118 MeV/u (Beta= 0.1257)
Beam after target: 7.35381 MeV/u (Beta= 0.1249) |
Fixed, e793s, Thu Mar 11 17:32:07 2021, Faïrouz, Franco, Sarah, RUN, General, CD2, run 56 screenshots 17h30 8x
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Fixed, e793s, Thu Mar 11 20:23:58 2021, Faïrouz, Franco, RUN, General, CD2, run56 screenshots at 20h18 8x
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Fixed, e793s, Thu Mar 11 21:14:26 2021, Fairouz & Franco, OFFLINE, General, CD2, Plots run 51-56
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Top left: kinematic plot with the main levels observed. The orange lines are (d,p), (d,t), (d,d) and (12C,12C) reactions by 47Ti. The yellow line is 47K(p,p), the green line 47K(d,d).
Top right: in black Ex spectrum with gate on VAMOS, in red with also the gate on a gamma and scaled by a factor 3 for better comparison.
Bottom left: Egamma vs Ex with gate on VAMOS.
Bottom right: Egamma with gate on VAMOS. |
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Fixed, e793s, Thu Mar 11 21:29:43 2021, Franco, RUN, General, CD2, Alignment in time of the VAMOS sections
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| The aligned time is saved in a variable called MWT in the output tree |
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Fixed, e793s, Thu Mar 11 23:30:27 2021, Faïrouz, Franco, RUN, General, CD2, run56 screenshots at 23h20 8x
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Fixed, e793s, Thu Mar 11 23:38:02 2021, Faïrouz, Franco, RUN, General, CD2, No beam at 23h35 for a duration of ~1à mn
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| The beam operators took the beam at 23h35 for 10 mn. |
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Fixed, e793s, Fri Mar 12 02:01:52 2021, Taras, Nishu, Chloe, Charlie, RUN, General, CD2, run56 screenshots at 02h10 10x
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| screenshots of run 56 attached below |
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Fixed, e793s, Fri Mar 12 03:21:01 2021, Taras, Chloe, NIshu, Charlie, VAMOS, General, CD2, VAMOS trip, requires help (FIXED @ 03:55)
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We received a call from PCP telling us that VAMOS has tripped. Currents on all focal planes are 0. We tried stopping and restarting the FP_CATS0 - FP_CATS5, but this does not resolve the issue.
A picture of the VAMOS control screen is attached. Diego has been contacted.
EDIT:::
Diego has informed us that the focal plane current is not the issue. The problem instead is with G1.G.D4.P (dipole?) in VAMOS. This has tripped off (see second attached image). He has advised us to call Bertrand to fix this.
EDIT2:::
Bertrand called an operator, and the VAMOS count rate is now back up to normal. The whole process from crash to fix took ~half an hour |
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Fixed, e793s, Fri Mar 12 03:57:46 2021, Taras, Nishu, Chloe, Charlie, VAMOS, General, CD2, dipole issue fixed
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the alimentation on dipole (G1.G.D4.P) was turned off,
the value was resetted(322.6) and works fine now.
cour: 323.5 A
tens. 39.21 V |
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Fixed, e793s, Fri Mar 12 04:19:51 2021, Taras, Nishu, Chloe, Charlie, RUN, General, CD2, run56 screenshots at 04h18 14x
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| Images attached. |
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Fixed, e793s, Fri Mar 12 06:23:44 2021, Taras, Nishu, Chloe, Charlie, RUN, General, CD2, run56 screenshots at 06h15 10x
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| Screenshots attached |
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Fixed, e793s, Fri Mar 12 08:58:09 2021, Adrien, BEAM, Hardware, CD2, Beam is stopped 8h55
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| Beam stopped to fix a leak on the accelerator. Intervention up to 4hours, maybe less. |
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Fixed, e793s, Fri Mar 12 09:52:01 2021, mugast (Sarah, Louis), OFFLINE, General, CD2, Offline analysis run up to 56 8am
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1) A high energy gamma has been identified at 3505 keV by gating on 3-5 MeV range in excitation energy. This transition is unknown so far
2) preliminary angular distribution has been extracted for the p states(<1MeV) and the f states (3-5MeV) corrected from geometrical efficiency. Angular distribution with gate on the 3.5 MeV gamma was also extracted. Too few statistics to tell anything. Need at least 4 time more statistics to have a proper angular distribution. |
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Fixed, e793s, Fri Mar 12 09:55:30 2021, Franco, GRIT, General, CD2, MM5
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The first plot attached has been done by artificially removing 7 deg in theta lab, just to see if the the kinematic lines of 47K(d,d) and 47K(p,p) can be reproduced. Of course the energy losses are not optimized in this case but anyway the agreement seems nice.
In the second plot I moved MM5 forward (in z) by 17.5 mm, without any re-orientation in x and y. We should compare this position with the one measured by the surveyors.
It looks like we have plenty of protons in the target but actually the Rutherford cross section at 80 deg for (p,p) is 4 times higher than the (d,d) one. From a quick estimation the ratio 2H:1H in the target should be around 3:1 (to be checked!). |
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Fixed, e793s, Fri Mar 12 09:57:30 2021, Adrien, OTHER, Social, N/A, Lost phone in agata counting room
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| Someone lost his/her phone in the agata counting room. Pictures attached. |
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Fixed, e793s, Fri Mar 12 10:07:29 2021, mugast, MECH, Hardware, , Leak
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https://www.hometree.co.uk/energy-advice/home-cover/common-water-leaks-and-how-to-fix-them.html |
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Fixed, e793s, Fri Mar 12 10:32:41 2021, OttoRun, RUN, General, CD2, Run57
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*************************
Run : 57
*************************
Start at 2021-03-12 10:32:22.121271
Test run. ACQ DT
(ATC6 crystal stopped)
New beam tune with better centering from Bertrand
Beam: 3.5e5 pps
target: CD2 0.5mg
Trigger are MUGAST/MM/CATS%
Stop at 2021-03-12 11:12:37.613523
Stop comment: type your message here |
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Fixed, e793s, Fri Mar 12 10:52:46 2021, Adrien, VAMOS, Hardware, N/A, Q pole trip in vamos
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| Q-Pole tripped this night around 4am at the same time as the dipole but was switch on again only at 9am. |
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Ongoing, e793s, Fri Mar 12 12:58:10 2021, Emmanuel C, OFFLINE, General, , Gamma Gamma Analysis 7x
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