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Fixed, e768s, Sun Jul 28 03:26:54 2019, Jenn and Andres, RUN, General, LiF, STOP RUN 154
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At 3:00 am beam went off. We called PCP and they told us that they had some problems they need to fix and that it might take long.
Therefore we decided to stop the run and put the Faraday cup.
PCP will call when they deliver again the beam. |
Fixed, e768s, Sun Jul 28 04:22:15 2019, Jenn, Andres and Daniele, BEAM, General, N/A, Beam problems and DC trip 
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- Updated from PCP about the problem with the beam: cyclotron went down and estimation of ~5h to have the beam back.
- After the beam went down, the Drift Chambers tripped making all the other biases go down (crate problem?). We tried to recover the biases but they don't
go up. We decided not to call Diego at the moment, as the beam will take long to come back. We will call him when we have more news from PCP.
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Fixed, e768s, Sun Jul 28 08:20:38 2019, Sylvain & Franco, RUN, General, , Update on possible restart
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The problem that caused the interruption was due to a failure in the cooling system.
The last update we've had is that we might have the beam back not before late afternoon.
We will keep you updated. |
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Fixed, e768s, Sun Jul 28 14:57:26 2019, Franco & Sylvain, BEAM, General, N/A, Beam problems and DC trip
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The HV and the vacuum in VAMOS are now recovered and back to the normal values. The water tray is 20% filled and under control. Mugast voltages and currents
seem all ok.
Latest news from PCP are that they are still tuning CSS1 and CSS2. Updates concerning the beam schedule are for the moment no more optimistic than before.
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Fixed, e768s, Sun Jul 28 16:23:48 2019, Nicolas, RUN, General, , Update on possible restart
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| Same situation as before lunch, the beam is still in C0 and not yet in CSS1. We may have beam in late evening.... |
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Ongoing, e768s, Sun Jul 28 19:58:57 2019, Nicolas, RUN, General, , Update on possible restart
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| Beam is now at the exit of CSS2 though We may have beam around midnight....[/quote] |
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Fixed, e768s, Sun Jul 28 21:59:43 2019, Nicolas, RUN, General, , Update on possible restart
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| Beam is in G1 with 3e6 pps. PCP will optimize for about 1-1,5h before we take the beam. |
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Fixed, e768s, Mon Jul 29 00:46:17 2019, OttoRun, RUN, General, LiF, Run155
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*************************
[SIZE=3][B]Run : 155[/B][/SIZE]
*************************
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Fixed, e768s, Mon Jul 29 01:20:48 2019, OttoRun, RUN, General, LiF, Run156
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*************************
[SIZE=3][B]Run : 156[/B][/SIZE]
*************************
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Fixed, e768s, Mon Jul 29 01:27:59 2019, Jenn, BEAM, General, LiF, Beam intensity and profile check
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Run number 156: 15-O beam
beam intensity 8.8e6
OR Vamos ~ 106 |
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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, e768s, Mon Jul 29 08:07:05 2019, Faïrouz & Andres, RUN, General, LiF, Beam-profile and scalers (run156) @ 8h07
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Fixed, e768s, Mon Jul 29 11:05:19 2019, Faïrouz & Andres, RUN, General, LiF, Screenshots run 156 @ 11h05 20x
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Fixed, e768s, Mon Jul 29 11:48:13 2019, Faïrouz & Andres & Sylvain, RUN, General, LiF, The beam intensity decreased to 2.4e6 pps due to instabilities in the source
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| The operators are trying to stabilize the ECR source before trying to optimize the beam |
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Fixed, e768s, Mon Jul 29 13:46:11 2019, Faïtrouz, Nicolas & Freddy, RUN, General, LiF, Beam intensity increased to 7e6 pps
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Fixed, e768s, Mon Jul 29 15:20:50 2019, Sylvain Andres, Freddy, Adrien, Franck, BEAM, General, LiF, Beam profile after beam intensity obtimisation
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| Beam recover at around 15:00 after beam optimisation by PCP |
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Fixed, e768s, Mon Jul 29 15:58:53 2019, Freddy, Sylvain, BEAM, General, N/A, Beam profile and scaler r156
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| beam down to 3.4*10^6 pps at 16h00 (or VAMOS 200 pps) |
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Fixed, e768s, Mon Jul 29 17:49:18 2019, Freddy, Sylvain, RUN, General, LiF, Beam status
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| At about 17:15 beam suddenly stopped. PCP operators are investigating the issue. |
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