From: Brentley C. Stratton
Sent: Friday, July 29, 2005 3:31 PM
To: Michael R. Kalish; David W. Johnson; George W. Labik
Cc: James H. Chrzanowski; Bradley E. Nelson; Wayne T. Reiersen
Subject: TF coil co-wound diagnostic loops

Thank you for a good meeting this morning. Here is my take on what we 
agreed on for the TF coil co-wound loops:

1. One loop will be located on the plasma-facing side of each TF coil.

2. The loops will be made of 32 mil diameter mineral-insulated cable 
(316 stainless sheath and wire). The MI cable will be insulated with 
Teflon heat-shrink tubing for an overall measured diameter of 47 mils. 
This is the same cable/insulation that will be used for the modular 
coil co-wound loops.

3. The loops will be located underneath the final (top) layer of ground 
wrap and then subject to the VPI process to be held permanently in 
place by the epoxy.

4. The path of each as-built loop will be accurately measured.

5. The loop leads will be twisted together starting at the point where 
they meet on the plasma-facing surface of the coil (approximately 1 
turn per inch).

6. The twisted loop leads will run down the side of the coil underneath 
the top layer of ground wrap and into a small (2" X 2" footprint) 
termination box which will be installed after the VPI process. The box 
will be located on the outer side of the coil above the main power lead 
area.

7. The termination box will be mounted using two drilled and taped 
holes on a small G-11 pad that will be bonded to the coil surface 
during the VPI process. An alternative (suggested later by Jim C.) 
would be to mount the box on a bracket which is mounted to drilled and 
tapped holes on the G-11 lead spacer part  of the coil. There should be 
no exposed loop cable on the surface of the coil.

8. Installation of the termination box and termination of the loops 
will be the responsibility of the diagnostics group.

Please let me know if anything is incorrect or left out, or if there 
are better ideas.

Thanks,
Brent