Difference between revisions of "Oct 15, 2008 Calorimetry"

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(Minutes)
(Minutes)
Line 105: Line 105:
 
10:00-10:30 Meetng with Department Chair in CEB 238A
 
10:00-10:30 Meetng with Department Chair in CEB 238A
 
* John Beamish introduced himself to the group and welcomed us.
 
* John Beamish introduced himself to the group and welcomed us.
 
  
 
10:30-11:00 Meeting with shop supervisor Gilert Lachat in CEB 238A
 
10:30-11:00 Meeting with shop supervisor Gilert Lachat in CEB 238A
 +
# Tim and Gilbert reviewed some details of the current drawings
 +
#* There is a suggestion for machining an O-ring into the sides of the wedge immediately following machining the sides by Ross machining. Gilbert and Jan thought that this should be a simple operation, but should be checked with Ross.
 +
#* Question whether all features on the sides of the Al plates should wait till after machining the sides (i.e. not a the time of machining the plates). Open for discussion.
 +
#* Gilbert proposed to prepare all end-plates at the same time (or in large groups), instead of piecemeal before each wedge fabrication.
 +
#* Estimate for machining the ends of four modules at a time was about 1 week.
 +
#* Zisis: raised the question as to whether we need to wrap each module with Al support tape.
 +
#* Elke: Requested that Gilbert prepare a spread sheet with all pieces and machining steps required for the first (49th module) with time estimates, so that this information can be folded into our schedule.
  
  

Revision as of 10:32, 16 October 2008

Supporting Documents and References

  1. DRAFT Construction Schedule
  2. Fiber Specifications
  3. DRAFT Lead Specifications
  4. DRAFT Construction Manager Job Description
  5. DRAFT Fiber QA and acceptance
  6. DRAFT Lead QA and acceptance
  7. DRAFT Construction procedures
  8. Wedge Detail Drawing
  9. Other Links

Tentative Schedule

  1. Jlab: Arrival: Tuesday, early afternoon. Departure: Thursday, midday.
    • Meeting between JLab group and R.Soluk in the CPP Board Room CEB 451
  2. UofR: Arrival Tuesday, late afternoon; Departure: Thursday, midday.

Participants

  1. Jefferson Lab
    • Elke Aschenauer, Hall D group Leader
    • Tim Whitlatch, Hall D engineer
    • Elton Smith, Hall D scientist
  2. University of Regina
    • George Lolos, GlueX co-spokesperson
    • Zisis Papandreu, Bcal Working Group
    • Andrei Semenov, Bcal Working Group
  3. University of Alberta
    • Jim Pinfold, GlueX contact
    • Jan Soukup,MRS engineer
    • Richard Soluk, MRS technologist
    • Gilbert Lachat, Head of machine shop
    • Doug Gingrich, CPP Director (on travel)
    • Rene Elio, Associate VP Research (on travel)
    • John Beamish, Physics dept chair
    • Cathie Gordey, Research Services Office
    • Melissa Dean, Research Services Office

Rough Agenda

  1. Maps/Information about UofA
  2. Jim will prepare an agenda by tomorrow afternoon.

Tues

Meet in the Board Room of the Centre for Particle Physics (Room 451 on the 4th floor of the CEB (Civil and Electrical Engineering Building))

  1. 4:00 pm schedule meeting with Richard Soluk
  2. Dinner (JLab and UofR)

Wed

  1. 9:00-9:15 Welcome in CEB 451
  2. 9:15-9:50 Preliminary discussions in CEB 451. Move to Room CEB 238A (main office meeting room)
  3. 10:00-10:30 Meetng with Department Chair in CEB 238A
  4. 10:30-11:00 Meeting with shop supervisor Gilert Lachat in CEB 238A
  5. 11:00-12:00 Tour of facilities used in BCAL construction
  6. 12:00-13:00 Lunch with the chair
  7. 14:00-16:00 Discussion on MOU and planning issues in CEB 238A - Cathie Gordey of the Research services offices will join us at 2:00 pm
  8. 18:00 Drinks and dinner at the faculty club.

Agenda Items (random order)

  1. Construction manager
  2. Review of schedule
    • Sequence of events
    • Receipt/QA of fibers
    • Receipt/QA and swaging of lead
    • Production
    • QA of module production
    • Shipping/receiving
    • Reporting
  3. Quality assurance
  4. Space allocation
  5. Hiring, supervising hourly labor
  6. Construction MOUs with UofR and UofA

Minutes

Attending: See participant list above.

9:00-9:15 Welcome in CEB 451

  • Jim welcomed and introduced everyone.

9:15-9:50 Preliminary discussions in CEB 451. Move to Room CEB 238A (main office meeting room)

  1. Elke outlined the main task of the day as being a clarification of responsibilities for the project.
  2. Jim reviewed the Alberta staff on the project.
    • Jan Soukup (20-25%), engineering concerns. Jan's primary task is the underground facility.
    • Richard Soluk (30%), MRS technologist.
    • Jim will address overall concerns, but no involved in the direct operations. Coordinate priorities, reports to MRS grants.
  1. EH&S concerns relative to handling of lead
    • The machine shop is part of the overall building ventilation system and needs to be separated out.
    • From the project point-of-view, we need documentation to show that the activities at Alberta follow their own procedures (established by Canadian regulations, etc).
    • The lead swaging by students does not create airborne lead (dust) and therefore protective covering (including gloves) is sufficient for safe handling.
  1. Discussion of 'DEEP' underground facility and impact on project
    • Challenging machining project consisting of two hemispheres of acrylic, requiring machining in both the concave and convex parts of the hemisphere. Project requires the piece to be machined in a single setup of the machine.
    • Note that the detector requires only two hemispheres, but the project is planning on machining two additional hemispheres (four total), considering the difficulty of the operation.
    • Fabrication also requires large jigs to be fabricated to support of the machining of the hemisphere.
    • Estimates for the duration of this activity were about 3 mo. (Gilbert), to 6 mo. (conservative estimate for first hemisphere, which might take longer).
    • Aksel Hallin, physicist on the project, joined us later in the afternoon to update us on the schedule:
    • Present for the project from NSERC (continual development) was about $ 0.3M (last year), $0.6M (this year), and $1.1M (next year). The funding for the current year is being used to order the acrylic and jigs for machining. A proposal to fund the full project for $10M has been submitted, with optimism for approval by middle of next year.
    • Machining of the hemispheres is planned for the next fiscal year (Apr 2009-Mar 2010).
    • The present GlueX plans would require machining the ends of four modules every 2.5 months. Assuming that most hemispheres will take about 3 months for machining, then the two tasks might be able to be interleaved after startup.

10:00-10:30 Meetng with Department Chair in CEB 238A

  • John Beamish introduced himself to the group and welcomed us.

10:30-11:00 Meeting with shop supervisor Gilert Lachat in CEB 238A

  1. Tim and Gilbert reviewed some details of the current drawings
    • There is a suggestion for machining an O-ring into the sides of the wedge immediately following machining the sides by Ross machining. Gilbert and Jan thought that this should be a simple operation, but should be checked with Ross.
    • Question whether all features on the sides of the Al plates should wait till after machining the sides (i.e. not a the time of machining the plates). Open for discussion.
    • Gilbert proposed to prepare all end-plates at the same time (or in large groups), instead of piecemeal before each wedge fabrication.
    • Estimate for machining the ends of four modules at a time was about 1 week.
    • Zisis: raised the question as to whether we need to wrap each module with Al support tape.
    • Elke: Requested that Gilbert prepare a spread sheet with all pieces and machining steps required for the first (49th module) with time estimates, so that this information can be folded into our schedule.




    • 11:00-12:00 Tour of facilities used in BCAL construction
    • 12:00-13:00 Lunch with the chair
    • 14:00-16:00 Discussion on MOU and planning issues in CEB 238A - Cathie Gordey of the Research services offices will join us at 2:00 pm
    • 18:00 Drinks and dinner at the faculty club.