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Summary  

1.  Vacuum Vessel Design and Interface Issues

• Port configuration: WBS 1 design integration activity needs to address the issue of accommodating the ICRF feeds, to see if it’s feasible. It was decided to allow two more weeks to finalize the port configuration. (Finalize by December 15)
  

ACTION: Dick Majeski provided updated ICRF requirements to Mike Cole.
ACTION: Dave Johnson, Brent Stratton, finalize WBS 3 requirements.

• Shell geometry: Issues are:
  

  • Possible component interferences

  • Narrow clearance (1.4 cm) between plasma and first wall at the tightest location.

  • Narrow clearance (<4cm) between plasma and first wall at oblate cross section, potentially causing power to be deposited there instead of the divertor.
    

Possible solutions:

• Modify plasma shape or aspect ratio magnetically to increase clearance at the tight spots.

• Reduce PFC space envelope in tight spots (easy if 350C VV bakeout is adopted).

• Small model corrections (“tweaking”) to resolve local problems. (A. Brooks)

• Re-segmentation to 6 segments (3x2/3-period, 3x1/3-period).  A. Brooks will discuss on 12/3.

• Re-segmentation to 9? segments with joints made up in field-period assembly and final assembly.
  

Physics issues will be discussed at meeting on December 2 at 1:30 p.m.
Re-segmentation ideas will be discussed at WBS 1 meeting on December 3 at 1:30 p.m.

Cost and schedule impact of the re-design effort to modify the segmentation needs to be estimated if it is proposed. (ACTION: Brad)

2.  Modular Coil Modeling and Analysis Issues

A meeting will be held later this week to assess the Hargrove, Brown, and Williamson modeling approaches, and decide on the path forward for the project. The analysts (i.e. H.M.Fan) will be included in the discussions and their needs will be taken into account to ensure we are able to analyze what is designed.
ACTION: Brad, follow up.

3.  CD-2 Preparation Plan

Most of the required documentation is already in good shape. Outstanding tasks:

• Project Execution Plan: All signatories should be reviewing content other than cost and schedule, which is highlighted in yellow and subject to change after review recommendations are assessed. Comments to Bob Simmons.

• EIR disposition plan: Assignees have been identified by Schmidt, Strykowsky, and Neilson. Assignments will be issued Dec. 2. Replies will be due to Bob Simmons.

• PBR disposition plan: Wayne and Hutch will identify assignees. Assignments will be issued Dec. 2. Replies will be due to Bob Simmons.

• Resource-loaded schedule incorporating baseline changes. Ron is responsible.

• CD-2 approval document.  OFES is responsible.
  

Proposed schedule agreed to with DOE:

• Finalize disposition plans by Dec. 12.

• Finalize changes to the cost & schedule baseline (including contingencies) by Dec. 19.

• Updated resource-loaded schedule and ECP by Jan. 9.

• CD-2 ESAAB, week of Jan. 26.
  

4.  Next Lehman review

We favor early May, 2004, which precedes the VV and MC final design reviews.  The plan is to use the Lehman review to obtain necessary approvals for CD-3a.
ACTION: Hutch convey SIT recommendation to DOE, and understand timing issues with respect to FDR’s and CD-3 deliverables.

5.  Next SIT Meeting: Monday, December 8, 2003 (GHN to participate from ORNL)


Summary by:
Hutch Neilson

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