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LTC Extended meeting

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CERN, CCC Conference Room

CERN, CCC Conference Room

874-1-011
Paul Collier (AB/OP), Steve Myers (AB)
Description
This extended LTC meeting will address topics related to the commissioning of LHC with beam to an intermediate energy. Sessions will include cold check-out without beam and the readiness of the machine systems to operate with beam.

Friday 14 March
14:00 - Main Auditorium
Summing-up of meeting

Support
  • Monday 3 March
    • 08:30 → 12:05
      Session 1 - HWC experience & future plans
      • 08:30
        Strategy 30m
        - Achieve circulating beam as soon as we have a cold and minimally commissioned machine. - Commission with beam to demonstrate that the machine is viable (captured beam and 1 hour lifetime). - The first run for physics. - The fall back solution: - One or more sectors require a major repair and have to be warmed up. - Sector test from one side or both on several healthy sectors while the repair is ongoing – access ? Or time sharing the week. - The energy strategy. - Schedule
        Speaker: Steve Myers
        Slides
      • 09:00
        HWC– where are we? 20m
        The major non-conformities encountered, the ongoing work, repairs, etc. (PIMs, connection cryostats, coupling between bus-bars, water cooled cables and flexible connections, etc.). The planning for the coming months.
        Speaker: Roberto Saban
        Slides
      • 09:20
        Overview of the commissioning of 45 20m
        - Where we come from (a recall of sector 78) - What was achieved in sector 45: number of circuits, energy of the presently commissioned sector 45, - how much more do we need for a reasonable energy level
        Speaker: Bellesia Boris
        Slides
      • 09:40
        Issues arising from review and HW commissioning strategy over the coming months 20m
        o safety, access, resources (qps, interlocks, power converters, MPP, controls), availabilty of systems, etc o Lessons from sector 4-5 o Parallelism between HWC and machine checkout (partial & full) – resources, expertise, limits
        Speaker: Rudiger Schmidt
        Slides
      • 10:00
        --- Coffee break --- 30m
      • 10:30
        HW commissioning to intermediate energy 35m
        o How can we achieve a machine commissioned for beam operation for mid June? o Objectives, advantages of HWC to intermediate energy. o How much time can we gain? o Can we achieve a commissioned machine for intermediate energy by mid-June? Critical issues for that? o Is there a safe limit to operate the magnets and the cryogenics for cold check-out, early physics?
        Speaker: Antonio Vergara-Fernandez
        Slides
      • 11:05
        Access System 30m
        o What is going to happen in the next 6 months? o Present experience o Closure of ring, preparation, qualification etc. o Prerequisites, EIS… o Access during a sector test o Is the access system ready for HWC in parallel to a sectorized cold-check out in parallel to HWC and experiment preparation?
        Speaker: Dr Magali Gruwe
        Slides
      • 11:35
        Experiments during HWC, beam tests and initial commissioning 30m
        o What are the experiments going to do from March to the first collisions o Can they leave with controlled access in the experimental areas in parallel with HWC and Cold-Check-out o Impact of a Sector test o How interested are the experiments in a run at intermediate energy?
        Speaker: Massimiliano Ferro-Luzzi
        Slides
    • 12:05 → 14:00
      --- Lunch break --- 1h 55m
    • 14:00 → 17:25
      Session 2 - Preparation for Circulating Beam - Part I
      • 14:00
        Preparation for Beam commissioning 35m
        o Plans for preparation for beam commissioning, dry runs, system commissioning, machine protection commissioning, partial cold checkout, full machine check out.
        Speaker: Mike Lamont
        Slides
      • 14:35
        Cryogenics towards operation 35m
        o How to operate up to 8 sectors together. o Recovery after a quench: how much time does it take? Is expert intervention required? How can this be improved? o Equipment folder: tests results, handling of non-conformities, performance below specs, machine as commissioned vs. machine as nominal o Alarms/signals/SW available in CCC o Piquet/Experts availability
        Speaker: Serge Claudet
        Slides
      • 15:10
        Magnets & QPS towards operation 35m
        o How to operate up to 8 sectors together o Recovery after a quench: how much time does it take? Is expert intervention required? How can this be improved? o Equipment folder: tests results, handling of non-conformities, performance below specs, machine as commissioned vs. machine as nominal o Alarms/signals/SW available in CCC o Piquet/Experts availability
        Speaker: Nuria Catalan Lasheras
        Slides
      • 15:45
        --- Coffee break --- 30m
      • 16:15
        Vacuum 35m
        o Breakdown of tests foreseen in preparation for beam o Equipment folder: tests results, handling of non-conformities, performance below specs, machine as commissioned vs. machine as specified o Issues for sectorized cold check-out in parallel to HWC o Alarms/signals/SW available in CCC o Piquet/experts availability
        Speaker: Jose Miguel jimenez
        Slides
      • 16:50
        Injection/Beam Dump and Protection Devices 35m
        o Breakdown of tests foreseen in preparation for beam o Equipment folder: tests results, handling of non-conformities, performance below specs, machine as commissioned vs. machine as specified o Piquet/Experts availability
        Speaker: Brennan Goddard
        Slides
  • Tuesday 4 March
    • 08:30 → 12:00
      Session 2 - Preparation for Circulating Beam - Part II
      • 08:30
        RF 35m
        o Breakdown of tests foreseen in preparation for beam (including damper, synchronization signals and pre-pulses, RF instrumentation) o Equipment folder: tests results, handling of non-conformities, performance below specs, machine as commissioned vs. machine as specified o Piquet/Experts availability
        Speaker: Olivier Brunner
        Slides
      • 09:05
        Beam Instrumentation 40m
        o Breakdown of tests foreseen in preparation for beam o Equipment folder: tests results, handling of non-conformities, performance below specs, machine as commissioned vs. machine as specified o Piquet/Experts availability
        Speaker: Jean-Jacques Gras
        Slides
      • 09:45
        break 30m
      • 10:15
        Collimators 35m
        o Breakdown of tests foreseen in preparation for beam o Equipment folder: tests results, handling of non-conformities, performance below specs, machine as commissioned vs. machine as specified o Piquet/Experts availability
        Speaker: Oliver Aberle
        Slides
      • 10:50
        Machine Interlocks 35m
        o Breakdown of the QA tests foreseen in preparation for beam o Equipment folder: tests results, handling of non-conformities, performance below specs, machine as commissioned vs. machine as specified o Piquet/Experts availability
        Speaker: Alick Macpherson
        Slides
    • 12:00 → 14:00
      --- Lunch break --- 2h
    • 14:00 → 17:30
      Session 3 - Possible injection into part of the machine, preparation for beam
      • 14:00
        Options for possible sector test 45m
        - motivation - options (injection point 8, injection point 2) - prerequisites - test outline, planned total intensities
        Speaker: Mike Lamont
        Slides
      • 14:45
        Radiation Protection implications of possible sector test 30m
        - precautions before test, during test - survey, zonage - requirements after test - tunnel, experiments
        Speakers: Doris Forkel-Wirth, Dr Helmut Vincke
        Slides
      • 15:15
        --- Coffee break --- 30m
      • 15:45
        Stopping the beam in a possible sector test 30m
        - point 7 - colimators, point 6 - beam dump - point 3, point 4 - radiation levels
        Speaker: Stefano Redaelli
        Slides
      • 16:15
        Proposed tests with beam 45m
        - run trough list, - priorities, - intensities
        Speaker: Massimo Giovannozzi
        Slides
      • 17:00
        Quenches with beam 30m
        - Motivation - Sector test, with circulating beam - Method, dangers, intensities - will HWC/MPP approve??? - Interference
        Speaker: Ralph Assmann
        Slides
  • Wednesday 5 March
    • 08:30 → 17:30
      Session 4 - Beam Plans for Accelerator Systems
      Abstract
      • 08:30
        Beam Commissioning Procedures 30m
        Speaker: Roger Bailey
        Abstract
        Slides
      • 09:00
        Injection and Associated Protection Devices 40m
        Speaker: Verena Kain
        Slides
      • 09:40
        Power Converters (tracking between sectors) 30m
        Speaker: Frederick Bordry
        Slides
      • 10:10
        --- Coffee break --- 30m
      • 10:40
        RF Acceleration Systems 40m
        Speaker: Philippe Baudrenghien
        Slides
      • 11:20
        Beam Dump and associated Protection Devices 30m
        Speaker: Brennan Goddard
        Slides
      • 11:50
        --- Lunch break --- 2h 10m
      • 14:00
        BI Systems 40m
        Speaker: Rhodri Jones
        Abstract
        Slides
      • 14:40
        RADMON 30m
        Speaker: Thijs Wijnands
        Slides
      • 15:10
        Transverse Damper 30m
        Speaker: Wolfgang Hofle
        Slides
      • 15:40
        --- Coffee break --- 30m
      • 16:10
        Collimators 40m
        Speaker: Ralph Assmann
        Slides
      • 16:50
        Machine Protection 30m
        Speaker: Jan Uythoven
        Abstract
        Slides
  • Thursday 6 March
    • 08:30 → 17:30
      Session 5 - Beam Plans for Accelerator Physics Systems
      • 08:30
        LHC optics 40m
        Data base implementation in LSA. Procedures for uploading optics versions in to the LHC. Overview of the provided optics versions.
        Speakers: Marek Strzelczyk, Thys Risselada
        Abstract
        Slides
      • 09:10
        LHC Aperture 35m
        Aperture model for the LHC. Summary of known aperture bottlenecks (e.g. Q2) and their documentation in the CCC. Procedures for the safe measurement of aperture in the LHC.
        Speaker: Stefano Redaelli
        Slides
      • 09:45
        Beta beating, coupling, and dispersion 35m
        Procedures for measuring for verifying the optics in the LHC. Summary of correction algorithms and their implementation in LSA.
        Speaker: Rogelio Tomas Garcia
        Abstract
        Slides
      • 10:20
        --- Coffee break --- 30m
      • 10:50
        Orbit correction tools 35m
        Commissioning strategy for the orbit correction system (BPM errors; k-modulation). Options for feed back loop on orbit. Orbit correction in the LHC IR and collimation regions. Strategy for orbit threading.
        Speaker: Jorg Wenninger
        Abstract
        Slides
      • 11:25
        Tune and Chromaticity correction 35m
        Commissioning strategy for the tune and chromaticity correction systems. Options for feed back loop on tune and chromaticity.
        Speaker: Ralph Steinhagen
        Slides
      • 12:00
        --- Lunch break --- 2h
      • 14:00
        Emittance 35m
        Procedures for measuring beam emittances in the LHC. Tools for minimizing emittance blow up during injection, ramp and squeeze. Procedures and tools for transfer line to LHC matching.
        Speaker: Frank Zimmermann
        Abstract
        Slides
      • 14:35
        Non-linear correction circuits 35m
        Procedures for adjusting the non-linear correction circuits in the LHC. Procedures for verifying the correction circuit settings
        Speaker: Massimo Giovannozzi
        Abstract
        Slides
      • 15:10
        --- Coffee break --- 30m
      • 15:40
        Verification of the Beam Loss studies at start-up 35m
        Procedures for calibrating loss patterns. Operational scenarios given measured BLM losses. Threshold adjustment and masking disabling during operation.
        Speaker: Laurette Ponce
        Slides
      • 16:15
        MADX online model – Part 1 25m
        Basic tasks and options. Implementation
        Speaker: Frank Schmidt
        Slides
      • 16:40
        MADX online model – Part 2 25m
        Integration into the LSA software and application of online MADX to operation
        Speaker: Werner Herr
        Slides
  • Friday 7 March
    • 08:30 → 17:30
      Session 6 - Readiness of Controls
      • 08:30
        Databases 30m
        DB cluster introduction New DB organization (LSA DB, Logging DB, Measurement DB, …) Performance issues (all databases) Logging DB: data rates – what is acceptable vs. what is expected
        Speaker: Chris Roderick
        Slides
      • 09:00
        LSA Core 30m
        Introduction (scope, high level architecture) Settings organisation for LHC Transactions (FGCs, FESA) Republication of information from LSA to DIP
        Speaker: Grzegorz Kruk
        Slides
      • 09:30
        LSA & Safety 30m
        Introduction (motivation for RBAC and MCS) What’s involved in making a property critical? How we manage maintenance of RBAC roles and MCS definitions? How do we ensure that configuration in LSA DB is in sync with Front-end?
        Speakers: Verena Kain, Wojtek Sliwinski
        Slides
      • 10:00
        --- Coffee break --- 30m
      • 10:30
        Sequencer 30m
        Experiences from HWC Current functionality and functionality which is missing for the first beam. Sequence creation/edition – who and how?
        Speaker: Reyes Alemany Fernandez
        Slides
      • 11:00
        Timing 30m
        HW status. Timing tables, telegrams, interface form LSA Injection cycling/filling scenario overview Post Mortem, XPOC events distribution
        Speaker: Julian Lewis
        Slides
      • 11:30
        Applications 30m
        What’s needed, what’s there, What’s missing and who is likely to do it (OP, CO, LAFS, BI)?
        Speaker: Delphine Jacquet
        Slides
      • 12:00
        --- Lunch break --- 2h
      • 14:00
        Magnet Modelling 30m
        Status of FIDEL in LSA. How do we feed errors back into the model? How do we feed a new model into LSA? Magnet vs. circuit modelling.
        Speaker: Nicholas Sammut
        Slides
      • 14:30
        Collimator control 30m
        Readiness of collimators control – from bottom to top State of automated collimator positioning
        Speaker: Michel Jonker (CERN)
        Slides
      • 15:00
        --- Coffee break --- 30m
      • 15:30
        Machine Interlocks (BIS, WIC, PIC, FMCM & SMP) 30m
        Hardware readiness and plans State of the supervision
        Speaker: Bruno Puccio
        Slides
      • 16:00
        SIS (Software Interlock System) 30m
        Present readiness status. Missing functionality – machine checkout and beam operations.
        Speaker: Jakub Wozniak
        Slides
      • 16:30
        PM (Post Mortem) 30m
        HWC tools & evolution Towards beam: tools, storage, triggering
        Speaker: Markus Zerlauth
        Slides
  • Friday 14 March
    • 14:00 → 18:00
      Summary Main Auditorium

      Main Auditorium
      • 14:00
        Summary Session 1 - HWC experience & future plans 20m
        Speakers: Chairman: Roberto Saban, Scientific Secretary: Walter Venturini
        Slides
      • 14:20
        Summary Session 2 - Preparation for Circulating Beam 25m
        Speakers: Chairman: Gianluigi Arduini, Scientific Secretary: Reyes Alemany Fernandez
        Slides
      • 14:45
        Summary Session 3 - Possible injection into part of the machine, preparation for beam 20m
        Speakers: Chairman: Mike Lamont, Scientific Secretary: Verena KAIN
        Slides
      • 15:05
        Summary Session 4 - Beam Plans for Accelerator Systems 25m
        Speakers: Chairman: Roger Bailey, Scientific Secretary: Frank Zimmermann
        Slides
      • 15:30
        Summary Session 5 - Beam Plans for Accelerator Physics Systems 25m
        Speakers: Chairman: Oliver Bruning, Scientific Secretary: Alick Macpherson
        Slides
      • 15:55
        Summary Session 6 - Readiness of Controls 25m
        Speakers: Chairman: Jorg Wenninger, Scientific Secretary: Grzegorz Kruk
        Slides
      • 16:20
        Closing Words 10m
        Speaker: Steve Myers
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