1. NCSX Project Meeting Vacuum System Update March 21, 2003 Bill Blanchard & Tom Provost

2. For FY03: * Evaluate PBX Pumps for Possible Use on NCSX -Mechanical Pumps -TMPs

3. NCSX Project MeetingMarch 21, 20033 Mechanical (Backing) Pumps 4 Welch 55 cfm pumps All pumps run >48 hours Blankoff pressure <2.5 mT New shaft seals and belts (about $2000- to refurbish all pumps in-house)

4. NCSX Project MeetingMarch 21, 20034 Backing Pumps (cont.) Pump rebuild cost offsite is approx. $1700- per pump Equivalent new pumps approx. $9000- each 2 additional pumps (1 complete as possible replacement and 1 for parts) Pumps look ok for NCSX use with new shaft seals and belts

5. NCSX Project MeetingMarch 21, 20035 Roughing Pump Kinney KT500 (500 cfm) Pump not yet drained or tested Water cooling system decommissioned Attempt to start in 1995 was unsuccessful for unknown reasons Replacement cost is approx. $30,000-

6. NCSX Project MeetingMarch 21, 20036 TMPS 4 - 1500 l/sec L-H TMPs 1 pump in use on MRX 1 pump spun at low speed to test a power supply Rotors spin freely on remaining 2 pumps Fixture being fabricated to fully test pumps (tests completed in approx. 3 weeks)

7. NCSX Project MeetingMarch 21, 20037 TMP Power Supplies 6 power supplies 4 are operable and 2 are not 1 power supply used on MRX Shortage of cables Offsite companies repair power supplies (if needed) TMP evaluation looks ok up to this point for use on NCSX

8. NCSX Project MeetingMarch 21, 20038 Other Business Henry Kugel and Bill Blanchard reviewed initial space requirements on the main port covers with Tom Brown One fueling injector per period (total of three) One standard ion gauge per period One GDC probe and starter filament per period (total of 3 each) One inboard injector (used for gas or pellets) per period One outboard supersonic gas injector per period