Brian Drendel May 21, 2010. Stacking Pbars stacked: 3494.39 E10 Time stacking: 159.01 Hr Average stacking rate: 21.98 E10/Hr Uptime Number of pulses.

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Presentation transcript:

Brian Drendel May 21, 2010

Stacking Pbars stacked: E10 Time stacking: Hr Average stacking rate: E10/Hr Uptime Number of pulses while in stacking mode: Number of pulses with beam: Fraction of up pulses was: 94.47% The uptime's effect on the stacking numbers Corrected time stacking: Hr Possible average stacking rate: E10/Hr Could have stacked: E10/Hr Recycler Transfers Pbars sent to the Recycler: E10 Number of transfers : 399 Number of transfer sets: 134 Average Number of transfer per set: 2.98 Time taken to shoot including reverse proton tuneup: Hr Transfer efficiency: 94.43% Other Info Average POT : 8.19 E12 Average production: pbars/E6 protons

A:IBEAM M:TR105B A:STCKRT A:PRDCTN A:EMT3HN A:EMT3VN FriSatSunMonTuWedThFri AVE POT 20.1e12 Stacked 3,494mA 25.7mA A:ISEP1V BRF18 & KRF2 MILLRF M:Q107 & M:Q105I I- communications M:Q105I Deb Mom Notch

A:IBEAM M:TR105B A:STCKRT A:PRDCTN A:EMT3HN A:EMT3VN FriSatSunMonTuWedThFri AVE POT 7.55e12 Stacked 2,160mA Unstacked 2,138mA Best Hr 25.35mA 161mA160mA 96mA Accelerator Startup ARF4 not ramping 86mA 154mA D:IKIK HVPS Pbar Access Booster/MI Access A1S10 Braze DRF1 AC 125mA 100mA Klystron Buncher $2B Studies LRF4 Work Day shift

Unstacked 3,399mA 400 transfers 131 sets 94.8% overall 7am Friday to 7am Friday

OK, for now A3B7 Running only on ARF1-1 until ARF1-2 can be repaired. ARF1 D:EKIK module #2 large timing drifts D:IKIK module #1 small timing drifts Kickers Six SCR firing boards replaced this week (M:Q107, M:Q105i). Bad batch of spares, or problems with supplies? Dynapower SCR Firing Boards Fire protection water leak valued out. No fire protection for AP0 and AP50 Repairs may mean no stacking time (leak by Pbar Transport berm) Fire Protection Occasionally 3 nsec drift in phase DRF1-1

Repair Debuncher Momentum filter #1 Regulator for horizontal band 1 amplifier shows voltage monitor fault. Debuncher Cooling Change gains since running lower power Increase trip limits by 10W per TWT 4-8GHz Momentum Pull thyratron and power supplies out of oil-filled tank for inspection. D:EKIK Timing ARF1-2 troubleshooting and repair RF Drain/Flush dump water system (6 hours) Target air blower maintenance (1 hour) Lens water flow meter replacement (3 hours) Target Station Pbar Dry engine flywheel and cold valve change (4 hours) Cryo

Try running TWTs at increased power levels. (tunnel work 1 st ) Will help determine the usefulness of Core momentum work during long shutdown. Core Momentum Power Test Measure stacktail heating one tank at a time 2-4 hours of greatly reduced stacking Stacktail Transverse Heating Initial Measurements Done Modifications needed to bypass Stacktail Equalizer Bypass Mu2e slow extraction measurements 4 hours of greatly reduced stacking Debuncher Tune/Stop band measurements Reverse Protons on Accumulator Injection Orbit Accumulator Impedance Measurements Anti-hydrogen Experiment foil A50 Halo Measurement