From: Timothy N. Stevenson
Sent: Friday, July 10, 2009 9:15 AM
To: Alfred von Halle
Cc: Mike Williams; Erik D. Perry; Mark B. Cropper; John W. Edwards; Thomas E. Egebo; Masayuki Ono; Ronald L. Strykowsky; Michael E. Viola; Martin Denault; Craig D. Priniski; Subrahmanya Ramakrishnan; Guy Rossi; Charles A. Gentile; Kristopher R. Gilton; John Winkelman; John Mitchell; Brian Clark; Jerome Siegel; Danny Mangra; Lawrence E. Dudek; Kelsey Tresemer; Bob Simmons; Orlando Guzman; Victor Garzotto
Subject: NBI Upgrade Weekly Status 7/10/09
Al,

NBI Management: The Peer Review presentations have been placed on the NSTX NBI upgrade website.

NBI Decon:  Regrowth surveys were completed and the data processed by HP for the calorimeter. Data is being reviewed but in some cases regrowth is clearly nonexistent. Other areas show some fluctuation in the levels but well within survey data error bars. Further review is ongoing. Decon wipedowns resumed on the calorimeter this week with steady progress noted. Floor areas have been prepared for the lid stand. The lid stand is scheduled to arrive in the Test Cell next week.

NBI Relocation: Diagrams of height rack ups for crane and shield wall clearances are complete. Lift fixture concepts and techniques are being evaluated.

NBI Power and Control:  Electrical work on N4 HVEs to disconnect internal connections has been completed. HVE placement in the NTC has been finalized but an adjustment to a shield block at the North door will be required. This shield requirement will now be studied and incorporated in NTC equipment relocations.

NBI Duct, VV Port:  The magnetic field environment for the new TVPS location appears amenable for TMPs. A shift in the TVPS duct is required to maintain the West aisleway. The TVPS duct realignment will impact some racks and relocations.  

NBI Armor: Beam divergences were included in the model of the beam trajectories to map the heat deposition by the beam on the armor tiles. These distorted ellipses on the armor provide a more accurate representation of the areas painted by the beam footprints.

NBI BL Services: Cost information is being gathered to fold into the upcoming estimate and WAF.

NTC Equipment Relocations:  A point by point survey of diagnostics physicists and racks and rack contents impacted by removals is underway to quantify requirements and perhaps streamline relocations later. 


Regards,

Tim



Timothy N. Stevenson

Head of Experimental Heating Systems & Neutral Beam Operations

LSB 316  C Site
Princeton Plasma Physics Laboratory
Princeton University
P.O. Box 451
Princeton, NJ 08543

Office (609) 243-2657
FAX (609) 243-3248
email: tstevenson@pppl.gov

Skypager # : 2047351


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