From: Wayne T. Reiersen
Sent: Monday, December 12, 2005 4:49 PM
To: Lawrence E. Dudek; Paul Goranson (goransonpl@ornl.gov); Bradley E. Nelson; Thomas G. Brown; Brentley C. Stratton; Steve Raftopoulos; Michael E. Viola; Ronald L. Strykowsky
Cc: Hutch Neilson
Subject: Notes from today's telecon on Station 1 Prep

Folks,

 

We had a brief meeting today on preparations for working on the VV Prep Station (Station 1).  Notes are listed below.  Please advise if any corrections are in order.

 

1.       Procurement issues (Dudek).  The cryostat interface flange contract has been awarded.  The requisition for the H/C manifold has been approved, but a buyer has not yet been assigned.  No critical issues re procurements for Station 1 work were identified.

2.       Heater tape design (Goranson).  Goranson reported that he is pursuing options fro non-magnetic heater tape.  Zarnstorff identified a SS304 candidate.  Goranson is also looking at moly and tantalum options.  Nelson thought the 304SS option looked promising.  When Goranson (the cog) and Nelson (the RLM) are convinced that we are sure that we have a viable option, all risks have been addressed, and the design documentation is ready for procurement, then Goranson should schedule an FDR.  Following a successful FDR, the procurement of the heater tape can be authorized.  (The charge for the FDR should be clear as to whether it covers just the heater tape itself (and mounting) or whether it addresses the heater tape system (including electrical power and controls).

3.       H/C tube design (Goranson).  Goranson reported that 3D analysis indicates that the braided, flexible H/C tubes work fine w/o any augmentation (thermally conductive grout or ground straps).  He also reported that the tubes had been received along with a candidate grout.  When Goranson (the cog) and Nelson (the RLM) are convinced that we are sure that the flexible tubes will work, all risks have been addressed, and the design documentation is ready for procurement, then Goranson should schedule an FDR.  Following a successful FDR, the procurement of the tubes and attachments can be authorized.  Nelson argued for prototyping the heater tape system and H/C tube installation on the Rohwedder PVVS.  Nelson was asked to provide a schedule and budgetary estimate in order to make an informed decision based on the costs and benefits of the prototyping activity.

4.       VVSA delivery schedule (Viola).  Viola visited MTM last week.  He indicated that the schedule for delivery of the VVSAs had slipped markedly to 3/31 for VVSA-1, 5/31 for VVSA-2, and 7/31 for VVSA-3.  The main culprit appears to be the loss of the second shift metrology expert at MTM.  Heitzenroeder, Dudek, and Neilson are scheduled to visit MTM and discuss their get well plan this week.  Viola and Strykowsky need to assess the implications of this late delivery on project plans.  Strykowsky plans to re-baseline accordingly.

5.       Fabrication (Dudek) and installation (Viola) of Station 1 assembly fixture.  Dudek reported that the fabrication effort is competing with other NCSX jobs in work.  It is expected to be completed the first week in January.  Viola and Strykowsky both argued strongly for a second station.  Dudek will put in a work request this week.

6.       Leica laser tracker (Raftopoulos).  Raftopoulos reported that the latest Leica software had been installed and is now successfully talking to the laser tracker.  Verisoft software (used by MTM) has also been installed but we are not yet familiar with it.  Raftopoulos was asked to explore training options for himself and the FPA technicians.  He was also asked to provide a detailed schedule to complete all of the preparations he is responsible for completing in order to be ready to work on Station 1 when the first VVSA arrives.

 

We will meet again next week at the same time and place.  Remote participants should use 866.718.9081 passcode 706670.

 

Regards,

 

Wayne