244th Machine Protection Panel Meeting (LHC)
The 244th MPP will take place in hybrid form: CCC glassbox and Zoom.
- 3155239
- 244
-
-
1
Minutes and actionsSpeaker: Daniel Wollmann (CERN)
-
2
LBDS test mode: implementation and validationSpeakers: Christophe Boucly (CERN), Nicolas Magnin (CERN)
-
3
Updates and status on the MPS commissioning checklistsSpeakers: Cedric Hernalsteens (CERN), Dr Marek Gasior (CERN), Yann Dutheil (CERN)
-
a) Update to the LBDS MPS commissioning procedure and checklistSpeaker: Yann Dutheil (CERN)
Procedure 896392 for MPS LBDS checks updated to account for the new LBDS test mode. First version reviewed by email with MPP and pending formal review & release procedure
1.1 REMOTE TEST MODE
Since YETS23/24 the LBDS is equipped with a remote test mode allowing to provide an energy signal to the system without local intervention. The changes and validation steps were agreed in [10].
#
Action
Description and criteria
When
1
Ensure the armed LBDS prevents enabling the test mode
With LBDS armed, try to enable the test mode. Ensure this is not possible. Repeat for B1 and B2.
S
2
Ensure the test mode enabled prevents arming the LBDS
With test mode enabled try to arm the LBDS. Ensure this is not possible. Repeat for B1 and B2.
S
3
Ensure the test mode enabling requires OP authorisation
Try to enable the test mode without OP authorisation (given on device LBDS.UA63/7.TESTSEQ.CTRL.B1/2 by lhcop). Ensure this is not possible. Repeat for B1 and B2.
S
-
b) Update to the BCCM commissioning procedure and checklistSpeaker: Dr Marek Gasior (CERN)
-
-
4
Readiness for first beamSpeakers: Andy Butterworth (CERN), Belen Maria Salvachua Ferrando (CERN), Christos Zamantzas (CERN), Daniele Mirarchi (CERN), Gregory Pigny (CERN), Jorg Wenninger (CERN), Maciej Trzebinski (Polish Academy of Sciences (PL)), Mario Deile (CERN), Mathieu Saccani (CERN), Raffaello Secondo (CERN), Yann Dutheil (CERN)
-
a) Beam Loss Monitor SystemSpeakers: Belen Salvachua Ferrando (CERN), Christos Zamantzas (CERN), Mathieu Saccani (CERN)
-
b) ALFA/AFPSpeaker: Maciej Trzebinski (Polish Academy of Sciences (PL))
-
c) BIC, PIC, WIC, FMCM, SMPSpeaker: Raffaello Secondo (CERN)
-
d) Injection & LBDSSpeaker: Yann Dutheil (CERN)
- Injection system
- checklist here
- All elements before first beam OK
- LBDS
- checklist here
- Issue with BTVDD not triggering solved by Ana and Nicolas with a FEC reboot yesterday
- New tests for LBDS test mode OK
- Updated MPS procedure to be sent for formal approval
- All green for beam
LBDS hardware commissioning
- Injection system
-
f) Vacuum SystemSpeaker: Gregory Pigny (CERN)
-
h) SISSpeaker: Jorg Wenninger (CERN)
-
i) RFSpeaker: Andy Butterworth (CERN)
-
j) ADTSpeaker: Andy Butterworth (CERN)
-
-
5
Intensity ramp-up proposalSpeaker: Christoph Wiesner (CERN)
-
1