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d-Au Status & Chronology

d-Au Status & Chronology. 29 January 2008. Kip Gardner. b4-q89 trip. Yellow collimator limit switch. APEX. APEX. Ring to ring synchro. Vernier scans. Yellow dipole feedback setup. Injection Drift comp. Test Coll on ramp. IR waist knobs. IR Waist knobs. Revert

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d-Au Status & Chronology

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  1. d-Au Status & Chronology 29 January 2008 Kip Gardner

  2. b4-q89 trip Yellow collimator limit switch APEX APEX

  3. Ring to ring synchro Vernier scans Yellow dipole feedback setup Injection Drift comp Test Coll on ramp IR waist knobs IR Waist knobs

  4. Revert to wed

  5. FEC went down

  6. Chronology • Mon 22 Oct: d at full energy in Booster. • Tue 30 Oct d to W dump. • Thur 1 Nov: Blue cool-down begins. • Sat 3 Nov: Au79+ to W dump. Mode switching established. • Mon 5 Nov: Blue cool-down complete. • Tue 6 Nov: Yellow cool-down complete. • Fri 9 Nov: d captured in blue.

  7. Chronology (cont’d) • Sun 11 Nov: Au injected into yellow with good lifetime. • Mon 12 Nov: Blue ramp efficiency 54%. • Wed 14 Nov: Blue ramp efficiency 81%; yellow 55%. • Fri 16 Nov: First collisions; 800 Hz. • Sun 18 Nov: 37x37, 90%, 18 kHz. • Mon 26 Nov: Physics declared at 4 pm. • Fri 30 Nov: Stochastic cooling operational.

  8. Chronology (cont’d) • Wed 19 Dec: 0.8 m beta-star in yellow. • Wed 26 Dec: 0.7 m beta-star in blue and yellow. • Wed 2 Jan: Phenix magnets reversed. • Tue 8 Jan: 160 kHz. • Wed 23 Jan: 175 kHz. • Sat 26 Jan: 200 kHz. • Sun 27 Jan: d-Au run ends at 8 pm.

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