Linac Running Between Jan 12 and Jan 19

Linac Running Between Jan. 12 and Jan 19, 2007 Running on the H- Ion Source Beam Current 34 ma Losses Have Been Fair This Week. Downtime 8. 06 Hours With 41 Occurrences 96. 3% Availability Major Sources of Downtime KRF 6 Nim Crate Problems Dropping Interlocks 4. 36 hr. Problems The I - Column is still apart. The two worst electrodes have been polished by the Machine Shop. The column ceramic is clean except for finishing touches. When the rest of the electrodes return there will be two days of cleaning and we expect to have everything ready to start up on 30 Jan.

Hours on the Linac 7835 Power Amplifiers Last data update: Thu Jul 28, 15: 00 CDT 2005 Sta Tube S/N Grad. Filament A Hours 1 A 27 R 6 0. 99 6470 23147 2 BV 6 1 6699 10822 3 BV 8 1 6763 6422 4 BK 3 R 1. 98 6800 6939 5 S 10 R 7 0. 99 6715 7375 7 BV 12 0. 0 6850 240 Days 964 450 267 308 307 08 Fraction of median* life 1. 21 0. 82 0. 08 0. 50 0. 49 0. 01 *Median tube lifetime is about 10750 hours (15750 for tank 1). This is 447 days (656 for tank 1). Spare 7835 Inventory: We have 25 spare 7835’s BA 4* AZ 4 R 1 A 20 R 8 A 1 R 9 Y 2 R 8* BV 7 N 49 R 7 BV 13, BV 14 BA 3 608 hours 348 hours 219 hours 368 hours 717 hours 984 hours 474 hours 0 hours BV 17 C 2 R 7 BA 11 A 30 R 7 BA 1 BA 2 BA 7 BA 5 BV 15 BA 6 0 hours 0 hours 0 hours BH 4 R 1 0 hours BH 5 R 1 0 hours N 27 R 8 0 hours BV 15 0 hours BK 1 214 hours Does not tune to 201. 25 Mhz * In Socket

Klystron Hours Module Mnf* S/N Hours Days Years 0 V L 122 109772 4573 12. 2 V V L 113869 4744 12. 7 1 L 0005 R 1 24480 1020 2. 5 2 L 0004 112631 4692 12. 6 3 L 0006 97198 4049 10. 8 4 L 0016 27188 1139 2. 8 5 L 0007 114963 4790 12. 8 6 L 0013 R 1 53338 2222 5. 8 7 L 0015 97102 4045 10. 8 D V A 21 95827 3992 10. 6 *Mnf = "Manufacturer", V is Varian VKP-7955 and L is L 3 (Litton) L-5859 Spare Klystron Inventory * * * * VK 107, 0 hours VL 026 Z, 0 hours L 0003, 2200 hours L 0011, 37200 hours L 0017, 0 hours L 0018, 0 hours L 0019, Delivered August 05 K 1 -07, 0 hours L 0 -26 Z L 0020 0 hours