2007-07-10 questions for cern – doyle rev 7/09/07 1/5 E. Doyle July 10, 2007 2007-07-10 questions for cern – doyle rev 7/09/07 1/5

Outstanding Questions (reminder) 1. Part numbers, descriptions, specifications, etc a. Steppers b. Resolvers c. Linear bearings 2. Pin assignments (also connector part numbers, wiring harness drawings, etc) pertaining to plug-in assembly 3. May we have some Cu/Ni tubing for evaluation? 2007-07-10 questions for cern – doyle rev 7/09/07 2/5

2007-07-10 questions for cern – doyle rev 7/09/07 3/5 New Requests 1. Water connections – in/out locations on plug-in assembly 2. Tolerance on 224 mm beam-beam spacing 3. adjacent beam pipe stay-clear 4. For discussion – use of gasketed flange tank cover on RC2 beam test prototype a. may preclude operation in some orientations gasketed flange 2007-07-10 questions for cern – doyle rev 7/09/07 3/5

New Requests - continued 5. What is “two-in-one” vacuum chamber you mentioned at 01/07 meeting? Is it applicable here? 6. Do we need the fifth stepper (+/- 10mm translation stage)? a. may we permanently offset stage ~10mm to gain space for our enlarged tank without shortening the bellows? 7. The damaged collimator that we’re buying a. what water pressure was intended/applied? b. is every unit tested? 2007-07-10 questions for cern – doyle rev 7/09/07 4/5

New Requests - continued 8. Confirm interpretation of bellows data? Lc = compressed length? Le = max extended length? Y-displacement of 20mm OK between 86 & 114 mm? Between Lc & Lcy transverse motion possible but reduced? 2007-07-10 questions for cern – doyle rev 7/09/07 5/5