Preparation for Machine CheckOut Status

1
Preparation for Machine Check-OutStatus

• Gianluigi for the Machine Check-Out Team
• (Mike, Reyes, Rossano)
• .and many thanks to Georges-Henry, Jörg, Markus
  and many others

2
Approach.so far

• Extended LTC presentations used as starting point
  for the discussion and to address the (many) open
  questions or unclear points
• Identification of the Machine Check-Out contacts
  (possibly people on the field) for each System
  (largely based on Rogers table at OP WS 11/07)
• First round of discussions to collect
  information
• Plans for the HW/SW availability
• Status of the commissioning
• Requirements for commissioning time in
  preparation for beam
• Status of the tools in CCC (Alarms, logging,
  Application SW) and feedback on them
• Definition of possible dates for preparation
  tests
• Interfaces with other systems
• What needs to be done during a standard cold
  check-out
• For the moment the contact is very useful and
  informative but the information flow is still
  slow (people busy on the optics of finalizing
  their HW)

3
Systems Table
üContacted - ûNot contacted, yet MsMrsMr-X
eqpt. contact
4
Systems Table
5
Access DSO tests

• Non-conformities found in week 2 being fixed.
• LHC DSO tests proposed dates (after discussion
  with TS/AB/HWC to be further discussed with the
  experiments, first somehow expected- reaction is
  negative)
• Preparation by TS/ASE starting 5/6/2008 1200.
• Global DSO test 1 6-9/6/2008 (included) in
  addition to the TI2 DSO test. Patrol on 6/6/2008.
• Global DSO test 2 20-23/6/2008 (included).
  Patrol on 20/6/2008.
• Need to go through committees like ICC, etc. to
  try and get a rubber stamp (?)
• They add (and partly overlap) to the TI2 and TI8
  DSO tests and beam commissioning (organized by
  Rossano)
• TI8 DSO test 16/5/2008
• TI8 beam test 24-25/5/2008
• TI2 DSO test during global DSO test 1
• TI2 beam test 14-15/6/2008

6
Beam Instrumentation

• See JJs presentation at LHCCWG 11/3/08
• Activities supposed to start 10/4 ? not yet..
• Need to start ASAP (JJ promised this week!!) ? By
  middle of May Cool-down of sector 4-5 ? access
  will then be difficult for the instrumentation in
  LSS4
• BTV system in a pretty good shape (used for Dry
  runs) ? although not all BTVs under control, yet
• Matching monitor after discussions at the e-LTC
  agreed with BI to have turn-by-turn acquisition
  on BSRT (in parallel to standard slow
  acquisition) from day 1 with possibility of
  installing a fast camera on one of the OTR
  screens in LSS4 (2-4 hours access) in case of
  problem (the infrastructure for that is being
  prepared).
• BLMs are certainly a major/complex system. Coming
  up with logging in some points. EMC tests done
  with kickers (in 2, 8 and 6, need to do in point
  4). Not yet with magnets (suspected interference
  with TL magnet pulsing tbc). Need reliability
  run and verification of concentrator and logging
  ? Discussion with Bernd

7
BIC

• Issue of the installation of the optical fibres
  seems solved should be completed by the end of
  April
• Preliminary planning for the IST
• trying to discuss the order with Bruno in order
  to get a better match with availability of the
  sectors from HWC
• Overall cold check-out requirements
• Some useful information in MPS Commissioning
  Procedures
• to be detailed and quantified ? Jörg and Bruno
  (with Jan and Alick).
• First version of the BIC supervision programme
  available (experience from SPS). Alarms will
  appear there.

8
Collimators

• All HW installed (except TCTVB in pt. 2 and 8 due
  to contamination of the tank)
• IST ongoing (expected to be finished by end of
  May). Dry runs started ? Mike, Stefano
• Overall cold check-out requirements
• The tests required to establish Machine
  Protection Functionality (i.e. tests during cold
  check out with all the other systems) only
  sketched ? Ralph promised that for this week
  (also requested by MPSC)
• Logging being put in place (Stefano)
• Alarms need to be defined (Georges-Henry, Markus,
  Stefano)
• First version of the fixed displays available
• Protection with RBAC and MCS to be tested
• Interface with BLMs (BLM concentrator, fast BLM
  acquisition to be tested)
• Separation between collimators and injection/dump
  protection devices for the controls not totally
  clear

9
Cryogenics

• From the HWC experience main issue is the
  Cryogenics support (resources for operation)
• Tools to get the status of the cryogenics are/are
  being made available
• Cryo-start/maintain status for each sector
• GTPM view with dependencies from other systems
• Normalized heat loads (initially normalized cryo
  -valve opening and temperatures, later normalized
  virtual heat-loads) per cell ? useful to identify
  possible localized losses, vacuum bumps
• Insulation vacuum warnings might be useful ?
  being discussed
• No time required for Machine Check-Out. Although
  having the above displays soon might be useful to
  follow the cryo behaviour as soon as Sectors
  become available

10
Power Converters

• No major issues most of the tests done during
  HWC, nevertheless
• EMC tests not completed (in particular with
  kickers)
• Exercising with nominal currents and trimming
  (e.g. behaviour close to zero current)
• Need to be done before taking beam ? possibly as
  we take the sectors coming-out of the HW
  commissioning
• Alarms are available (need to verify reduction
  criteria and details)
• Logging implemented (to be verified
  systematically)

11
QPS/EE

• From the HWC experience main issue is the expert
  support (resources for operation)
• No additional tests are required during cold
  check-out
• Tests will be required after every SD ? K.
  Dahlerup-Petersen, R. Denz to provide the
  procedures for future reference
• Alarms (available for some of the sectors, not
  yet for 5-6)

12
RF - Transverse Feedback - Beam Observation

• All HW installed in the tunnel
• In general the power part is in a good shape
• Low-level part and even more control SW are
  lagging behind
• Fast signals (pre-pulses, frev, 40 MHz to expt.,
  etc.) not yet distributed
• The same for observation tools (FESA classes and
  application SW, OASIS signals not available)
• Expecting a summary of the situation and schedule
  (by the end of this month)
• Alarms and logging available. But only for RF
  cavities for the time being
• No specific requests of time for Machine
  Check-Out, so far

13
Timing

• HW installed and running but
• Safe Machine Parameter Controller (carrying
  information about energy, intensity) not yet in
  its final version ? Simulated values
• Beam Permit flags not yet wired to timing
• Schedule to be discussed with B. Puccio
• Monitoring tools for the timing is very important
  as timing is playing a critical role (more than
  in the SPS or LEP) in the safe operation of the
  machine
• Alarms when timing events are not sent or delayed
• Tools to dump expected vs. distributed events are
  needed in case of error ? Julian could have a
  tool for that
• All the mechanics of the injection must be tested
  all through the chain both for the pilot filling
  scheme for commissioning and for the nominal
  filling scheme ? Dry run on 8/5 being organized.

14
Vacuum

• Vacuum installation almost complete. Expect to
  close and pump the experimental areas by the end
  of May. Still true? Waiting for plan from AT/VAC
• Vacuum valves and their control tested but for
  the moment not in remote control (disconnected
  and blocked IN) ? need the beam info from BIC
• Alarms are available for beam/insulation vacuum ?
  reduction to be applied to avoid too many alarms
  when problems ? Markus, Georges-Henry.
  Information about insulation vacuum could be
  useful to anticipate possible problems for the
  cryogenics
• Logging
• defined for the vacuum pressures (both for
  insulation and beam vacuum but for the latter no
  data yet) with an acquisition rate of lt1/min.
  Sufficient for the beam pressures?
• for position of the valves on change.
• Application is OK some minor modifications
  requested ? presentation at the next LHCCWG (I.
  Laugier)

15
General Issues

• Verification of UPS connection of critical
  equipment is (was) part of the HWC not done for
  sector 4-5 and 5-6 (so far) ? impact on
  cryogenics and organization
• Status of the compensators and behaviour at full
  load (e.g. Pt. 2 and Pt. 4)
• Post-mortem not really addressed yet
• Logging alarms ? entries are coming ? needs
  some order and verification
• Trying to cope with the little solid
  information on the overall HWC and Installation
  plans for the time beingeven more difficult now
  that HWC is not appearing in the official
  planning
• Issue of the DSO tests dates ?

16
Next step take ownership of Sector 5-6

• Started discussions with HWC (second week of
  May). Useful for the definition of the procedures
  of the cold check-out
• Generate and load nominal functions 5 TeV ramp
  all the magnets
• Training in the late afternoon (only dipoles?)
• Trim (chromaticity, tune, coupling, beta beat,
  orbit correction) and verify the effect of the
  trim.
• Connect BIC (beam info needed for the vacuum
  valves), t.b.c.
• Vacuum controls in remote (valves, vacuum pumps)
• Add distributed instrumentation (BLMs already
  available in L6-, BPMs, BTVs, RAMSES, RADMON)
• Add Beam dump elements
• Add collimators (few) and protection elements
  (available?)
• SIS verification
• Verify fixed displays, alarms (by sector),
  logging

17
Hand-over of a Sector

• We need to know/have from HWC
• List of tests done
• List of maximum currents
• List of non-conformities. There are a lot of them
  with decision pending. Shall we go through them
  here before taking over a sector? Can we do
  differently?
• Access in the machine in the handed-over sectors
  should go through the EIC on shift
• .anything else?
• Needs to run handed-over sector
• Availability of a (at least) a console for
  Machine Check-Out
• Some Wall displays
• Suggestion TI corner close to the Cryo people

18
To be put in place

• Names of people attached to each of the system
  tests for 5-6
• I guess that Mike, Jörg, Reyes, Rossano and
  myself will be around most of the time, but
• Tests of the various systems
• Applications
• Verification of the logging
• Alarms
• Should be done with the help of the system
  commissioners (e.g. vacuum ? Frank,) on agreed
  periods, as well as the follow-up of specific
  issues
• Information collected so far and follow-up
  first embryo of the check-out procedures will be
  put in a web-repository/page connected to LHCCWG
  and Dry runs pages ? Reyes once she is back from
  holidays
• Starting on the middle/end of May
• Should start more regular meetings to review
  progress in the preparation of the HW with eqpt.
  contacts. (merging with ABCIS?)
• Regular reports to LHCCWG