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103rd BLM Thresholds Meeting (changes during YETS and system readiness)
- B.Salvachua - Changes on the LHC BLM system during YETS
- New BLM installations during EYETS 24-25
- TWOCRYST, two new BLMs, one downstream splitting crystal (TCCS) and another one downstream precesion crystal (TCCP)
- Not interlocked
- Channel for TCCP crystal reused from BLM at TCSM empty slot
- Installation and motivation for experiment in ECR...
- BGC, installation of two BLMs to investigate possibility to use it for beam halo monitoring
- Not interlocked
- Installation and motivation in ECR...
- RF cavities, relocation of three BLMs and installation of two additional ones around the cryo-module 1 - Beam 2
- Were not interlocked and will not be now
- ECR under preparation
- Cables now routed on the protection to shield from noise
- TDIS 4L2, one BLM that had to be displaced by 66 cm
- Modification of expert name to reflect the modification of dcum
- No modification of thresholds
- MKIA MKIB in IP8, removal and reinstallation of 4 BLMs in the same locations
- No changes
- LESS solenoid installation, removal and reinstallation of 2 BLMs in the same locations
- No changes
- Question from Cedric about timeline for LIC detectors
- Belen says that Sevgi is performing LIC and IC simulations to verify conversion factors and signals
- Action: Check if some of the LIC detectors are already interlocked in injection areas, and what is the thresholds
- Question from Daniele about dBLMs in IP3
- Belen says that they have been installed, details about high and low gain channels will come
- Logging already in place
- The card was taken from SPS and cables from collimators
- Question from Daniele about interlock on TWOCRYST BLMs
- Concerned that if they are not interlocked, if there are problems with the reversal after MDs, it will not be noticed easily
- Possibility to interlock BLMs and put thresholds to the maximum for situations like these
- Decision -> This will be the case for the TWOCRYST BLMs
- TWOCRYST, two new BLMs, one downstream splitting crystal (TCCS) and another one downstream precesion crystal (TCCP)
- New BLM installations during EYETS 24-25
- S.Morales - LHC BLM system readiness for 2025 first beam
- Redundant 100Hz logging -> logged now by BLM per crate, also from Collimation
- Build crontask to verify logging
- Beam expected in 14 April
- Latency tests: Check the note LHC-BLM-NOT-0008 with Daniele.
- Latency in the ARC not tested
- Cedric: Checklist in MPP
- Cedric: in Friday there will be an update on the checklist
- Redundant 100Hz logging -> logged now by BLM per crate, also from Collimation
Next meeting 8th April - in the control room.
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