[Bteam] Notes from last Wednesday Bteam meeting

Arne Freyberger freyberg at jlab.org
Mon Aug 31 09:30:40 EDT 2009


Notes from last Wednesday meeting.  This week I'd like to spend some 
time going over possible action items from this list.   An agenda will 
be distributed tomorrow.  Arne


    1 2009-08-26 Wed 14:00 Agenda--Notes

    * lessons learned from startup
          o PD summary
                + Report form Yan and Reza from the PDs perspective
                      # Issues
                            * Staggered start would be better when we
                              have challenging new experiments.
                            * Hall A&C not ready for collaborative checks.
                            * three magnet setting issues -- injector
                              quads :: CMPQ found this problem -- Arc
                              dipoles :: CMPQ is typically ignored for
                              these issues -- sextupoles :: Not on CMPQ,
                              need to add
                            * Join together MST, CMPQ, BURT for magnet
                              setting integrity??
                            * Dogleg vacuum event -- Are there
                              improvements of the dogleg tools. -- Why
                              did it download a value of 0? -- RER team
                              formed to investigate -- Alarm when value
                              is out of range
                            * MST improvements? AHLA has placed
                              migrating MST to elegant modeling high on
                              its priority list. Should the requirements
                              be revisited?
                            * 8S, 9S skewed quads, how should they be
                              set at the beginning of the run? Should
                              they be set to zero? and adjusted at the
                              end of the ORFP to deal with coupling?
                            * Injector 30Hz is not working. Need to fix
                              this.
                            * Need to differentiate between standard
                              transport equipment and new experimental
                              equipment (sextupoles).
                            * Many Chiefs. Did we follow the
                              optics-on-call protocol? -- Need clear
                              identification who is driving the bus. --
                              Did the operators know who to listen to.
                            * pathlength and non-standard setting of MO.
                              Back to differentiating between standard
                              tools and new experimental methods.
                            * Review of the scaled 7.5% file failed to
                              miss the energy mishap -- Why are we
                              manually scaling the file?
                            * Viewer limited permissive. Need a
                              procedure for check that viewers are
                              clearing the FSD. Poelker has a method to
                              check this. Need to work getting this
                              procedure as part of HCO.
                      # Things that went well
                            * Wien change went very smoothly, even to 90^^
                            * Inverted gun is great!!! All hail the gun
                              group!!!!
                            * Injector-NL match !!!
                            * BSY harps are not working, matching has
                              not been attempted. -- will have to
                              debugged in the heat of the battle.
                            * Parity beam setup went smoothly, Happex-II
                              value has been achieved. -- Second round
                              of improvements to come next week
          o Optics-on-Call
                + Report from Byunn
                      # Did not expect to participate in setup, startup
                        period was much more intensive than he thought.
                      # New tools compared to 4 GeV commissioning are
                        impressive and really improve the machine setup
                      # Courrant-Snyder tool is a significant improvement
                      # Tools should be complete and be a accurate
                        reflection of the machine (and elegant decks).
                + General OOC issues during startup
                      # Would assigning shift coverage during the start
                        up help?
          o Operations
                + Summary from Yan
                      # Start the RECO check out a few days earlier.
                      # Conflict between Hall HCO and accelerator
                        steerup -- MPS issues -- competition for EES
                        resources -- Many viewers, need better procedures?
          o HKS, new line commissioning
                + Report from Spata
          o What worked?
          o What failed?


    2 2009-08-12 Wed Agenda--Notes

    * Parity Quality Beam/Injector Setup
          o Pockel Cell Alignment Physics
          o Injector setup Kazimi
            Status and future plans
          o Remaining Beam studies/injector work before physics
                + Yves PQB optimization Status and schedule
                + Matching into NL Schedule
    * August Configuration
      Hopefully I'll know what physics wants by tomorrow.... 2009-08-11
      Tue 14:41
      Just heard from Physics, they would like a 7.5% unbalanced setup.
      During the Hall-A one-pass running the ?_Wien set such that B get
      100% alignment.

      Tuesday Aug. 25th Hall-A goes to 3-pass and ?_Wien set such that A
      get 100% alignment.

          o Startup plans Yan
            Details of the startup presented for review.
    * Fall beam studies
      Discuss overall goals for Beam studies this fall. In terms of
      support for the future program, a major chunk of beam studies will
      be used for commissioning the C50-9 module. We will discuss other
      major efforts for the fall as well to help prioritize the beam
      studies scheduling.

Date: 2009-08-31 09:29:18 EDT

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