Summary of NCSX SIT Meeting of Monday, Apr. 28, 2003

1. Announcements and Near-Term Tasks

* The PDR is postponed. A new plan will be developed with a PDR date we can meet with high confidence. Targeting early or mid September. RESPONSIBILITY: Wayne to lead in developing the plan.

* Jim announced that the QPS Conceptual Design Review will be June 24-25.

* Status updates of the CDR recommendations are requested by 4/30. (Hutch)

* Most of the GRD peer review chits have been dispositioned and the GRD will be issued for approval this week. Any new issues will be collected and incorporated into future updates. (Hutch)

* System engineering plans (Bob): Document Plan and Interface Control Management Plan are issued. Configuration Management Plan is out for signature. System Engineering Management Plan is ready for a peer review, which will be scheduled sometime in May.  Data Management Plan is being revised by Bob to incorporate peer review findings and will be issued for approval soon.

* Project Execution Plan (Bob): has been revised and issued for comment. No feedback so far. The PEP is a CD-2 deliverable which must go through the approval cycle again, including DOE. Bob will develop a schedule.

ACTION: All are asked to conduct timely reviews and approvals of documents.

2. Re-baselining activity (Ron)

* Updated cost and schedule inputs have started to come in. Ron has developed a schedule of reviews for 18 work packages. They will start this week with Jim Chrzanowski's tasks in WBS 14 and 18, and will run through June and into early July. The schedule will be distributed and posted on the web site.

* Ron reported that an underrun of about $1M is forecast for FY-03. Discretionary spending limits are constraining our ability to procure parts and materials needed to perform work. Some relief may be possible provided we are ready with requisitions. The highest priority is for coil winding and impregnation tools (turning fixture, autoclave).

ACTION: Hutch discuss with Jim Chrzanowski.

* Recently initiated tasks (e.g., metrology) need work plans, WAFs.

ACTION: Hutch follow up with Wayne.

3. Critical Technical Issues (Brad)

* Modular coil modeling

  - The winding pack twist optimization task is nearing the end. That will give us a finite-build model of the coils and permit an assessment of any adjustments in winding pack dimensions that might be needed.

  - A physics assessment of the finite build coils will be done.

ACTION: Brad/Dave issue multi-filament coil data when available.

  - After twist optimization, modifications to the shell inner surface geometry will be made in order to tie the tees to the shell.  It is expected that this will take about 2 weeks.

  - After that comes clamp arrangement.

* A decision will be needed soon on what drawings we want the MCWF suppliers to use for the prototype. Use what they have already? or wait for new drawings?  The consensus of the SIT was not to hold the suppliers up waiting for new drawings.

ACTION: Brad and Dave, work with Phil and suppliers to provide timely data and decisions.

* The vacuum vessel shell design is nearly done. A plan for vacuum testing of each period at the supplier's facility has been developed and is being written into the specification.

* Conductor properties and allowables data. Brad reported that an adequate plan is in place, including work at CTD (Colorado), Univ. of Tennessee, and PPPL. The risk is that the results might not fall within the expected range.

* Brad stated that keystoning is a critical issue. The 4-conductor cable is not behaving well in winding tests. If we have to go back to the single conductor, it is feared that keystoning effect will be large. We hope to get a report from Chrzanowski at this week's WBS 1 meeting.

* Electropolishing. We have to decide whether or not to electropolish the vacuum vessel. At this time, it is at least tentatively in the specification and the suppliers will include it in their preliminary MIT plan and budgetary estimate. John Schmidt will coordinate an assessment of the technical issues and benefits.

4. Next SIT Meeting:  Monday, May 5, 2003.

Summary by:

Hutch Neilson