ELOG MUGAST

MUST2 SAMURAI_2018 S3-LEB-LPC SUPERNEMO MUGAST EXPAND SCALP GALATRON HiCARI VELO

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Sun Jul 28 03:26:54 2019

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

- 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.
- Checked the water tray of MUGAST cooling system: seems ok.

Attachment 1: IMG_20190728_043633.jpg

Fixed

e768s

Sun Jul 28 08:20:38 2019

Sylvain & Franco

RUN

General

Update on possible restart

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.

Fixed

e768s

Sun Jul 28 14:57:26 2019

Beam problems and DC trip

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.

Jenn, Andres and Daniele wrote:

Fixed

e768s

Sun Jul 28 16:23:48 2019

Nicolas

RUN

General

Update on possible restart

Same situation as before lunch, the beam is still in C0 and not yet in CSS1. We may have beam in late evening....

Ongoing

e768s

Sun Jul 28 19:58:57 2019

Nicolas

RUN

General

Update on possible restart

Beam is now at the exit of CSS2 though We may have beam around midnight....

Fixed

e768s

Sun Jul 28 21:59:43 2019

Nicolas

RUN

General

Update on possible restart

Beam is in G1 with 3e6 pps. PCP will optimize for about 1-1,5h before we take the beam.

Fixed

e768s

Mon Jul 29 00:46:17 2019

*************************
Run : 155
*************************

Start at 2019-07-29 00:45:37.075148

Stable 15O beam

Brho = 0.556 Tm

target LiF thick number 1

VAMOS TUNNING

Stop at 2019-07-29 01:16:56.836158
Stop comment: type your message here

Fixed

e768s

Mon Jul 29 01:20:48 2019

*************************
Run : 156
*************************

Start at 2019-07-29 01:11:56.476096

15O beam

Brho = 0.556 Tm

target LiF thick number 1

OR VAMOS 474
OR Mugast 106
Fag 133

beam intensity 9e6

TRIGGERS:
MG BACK
MG 90
MUST2
VAMOS%10
BF2%100

Stop at 2019-07-29 18:51:35.281843
Stop comment: VAMOS TUNNING AT THE END OF THE RUN WITHOUT BLOQUER

Fixed

e768s

Mon Jul 29 01:27:59 2019

Beam intensity and profile check

Run number 156: 15-O beam
beam intensity 8.8e6
OR Vamos ~ 106

Attachment 1: photo_2019-07-29_00-27-36.jpg