From: Hutch Neilson Sent: Tuesday, November 20, 2007 9:57 PM To: Michael R. Kalish Cc: Michael C. Zarnstorff; Phil Heitzenroeder; Subrahmanya Ramakrishnan; Arthur W. Brooks; Thomas G. Brown Subject: Trim Coil requirements Mike, Following up on the recent peer review, here is the requested guidance regarding trim coil requirements: 1. Response time / voltage: zero to 20 kA-turn in 20 ms. (Strawman) Please advise on the voltage and force implications before going too far with this. 2. Dimensional accuracy: Fabrication tolerance: ±1/4 in.; Positioning tolerance: ±1/2 in. Record as-built dimensions. 3. Midplane coils: examine the feasibility of adding two coils straddling the midplane at the C-C joints. One coil on each side of the joint. Hutch