Horizontal Diagnostic Modules

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Horizontal Diagnostic Modules

• Model Prepared by Russ Feder, PPPL
• Presented by David Johnson, PPPL
• 3rd PTF Meeting
• June 1, 2005
• Naka Work Site

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Equatorial Port E3

• Working from present E3 integration,
  investigating various concepts for horizontal
  diagnostic modules
• Do horizontal modules offer any advantages?

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Potential Advantages of Horizontal Modules

• Most diagnostic access labyrinths are radial
  in/out, and modules which are monolithic along
  the full path of the labyrinth would easier to
  design

• dimensional control would be much easier since
  all elements are in one piece
• would not have to worry about keeping segments in
  multiple modules aligned
• tenant parties responsible for particular system
  would need to worry about a single interface, and
  could be given more design freedom within the
  boundary of the module.

MSE module
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Equatorial Port 3 Pre-Conceptual
Design Horizontal Diagnostic Drawers Pre-Conceptua
l Design Issues 1. Cooling line for each drawer
for main BSM 2. Gap between drawers and how to
plug to prevent streaming 3. What does the main
vacuum seal really look like? 4. Appropriate
thickness for BSM/Face of Drawers 5. Drawer
Support and Positioning 6. Remote Handling 7. Etc
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Present Status

• Drawer option
• with change in RH strategy, would permit radial
  removal of individual drawers without removing
  entire port plug
• Stacked horizontal modules
• would use normal RH procedures to remove full
  plug, but stacked horizontal modules would be
  sequentially removed in hot-cell

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Are we wasting our time?

• This represents a significant departure from
  reference design
• Have these concepts been ruled out for good
  reason in the past?