Run II Upgrades Status January 2006

1. Run II Upgrades Status January 2006 Pushpa Bhat

2. Outline • Technical Progress • Project Status • Status Report for December ‘05

3. Technical Progress • AP2, DB studies • Dave’s talk • Li Lens • One each of PT-1 and PT-2 lenses will be filled and the PT-2 will be tested on the test stand. PT-2 should be ready for beam in June. • Rapid Transfers • Many elements of the upgrade are in place (ramping power supplies, BPMs) providing benefits to operations in various modes • Transfers without reverse proton tune-up tried many times last week with good results

4. Technical Progress (contd.) • 2.5 MHz pbar acceleration in MI • Results from 2 pbar study periods promising: 86- 93% eff while tuning,  ~ 30% • Shows 100% efficiency and ~10% emittance growth in proton studies for relevant intensities and emittance • May save 15% pbars now being lost in MI during acceleration and coalescing • current scheme acc+ coalescing eff. ~85%,   80% • better beam quality, hence expect lower losses in Tev and gain in luminosity due to smaller long. Emittance • Overall expect >20% gain in peak luminosity • Contention on how to proceed. There was a recent review held by McGinnis/Kourbanis. • McGinnis report: Potential for 5-10% in L.dt now • We should try a few shots before shutdown • Far less risky and far less complicated than trying to recover and recycle pbars! • Compare with many projects in pbar source each <10% gain

5. Technical Progress (Contd.) • MI BPM upgrade • Most of the hardware designed, ordered or delivered • First test system almost ready; will be installed in MI40 next week, replacing the old system • Full upgrade during and immediately after shutdown • BLM upgrades • Prototype system running at MI60 for ~ 3 months, with PC instead of local control card. Control card + software under test • Production to be completed by 4/15, a month of testing followed by installation

6. Technical Progress (Contd.) • IPM, OTR detectors • One each installed in the Tevatron during the Dec. shutdown. Now fixing some problems. Might have some data after the current shutdown • Tevatron Electron Lens • Good progress • TEL-1 upgraded with new SEFT e-gun • TEL-2 essentially ready for installation • Tev ES separators • Install in SD’06, 2 new separators and swap 3 existing separators (these were sparking at higher voltages when larger collision helix were tried last Fall.)

7. Project Highlights: Projects 100% complete • 1. Luminosity Upgrades • 1.1 Protons on Target • 1.1.1 Slip Stacking • 1.1.2.1, 1.1.2.2 pbar Target & Beam Sweeping (initial) • 1.1.3.1 MI dampers • 1.1.4 Booster Cogging • 1.1.5 Optical Transition Radiation Detectors • 1.1.6 Operational Improvements to Slip Stacking • 1.2 Antiproton Acceptance • 1.2.1.1 Modifications to existing lens • 1.2.1.3 General Lens R&D • 1.2.1.4 New Lens (prototype-1) operational (Milestone) • 1.2.2.3.1.1, 1.2.2.3.2.2 AP2 & Debuncher BPM Upgrade • 1.2.2.10 Initial AP2/Debuncher Aperture Improvements Complete (Milestone) • 1.3 Antiproton Stacking & Cooling • 1.3.1 Stacking & Cooling Integration Task Force • 1.3.2 Debuncher Cooling • 1.3.3.2 Stacktail Betatron Cooling • 1.3.4 Recycler Stacking & Cooling • 1.3.5 Electron Cooling R&D, Installation & Commissioning • 1.4 Tevatron High Luminosity • 1.4.3.1.1, 1.4.3.1.2, 1.4.3.1.3, 1.4.3.1.9 Design and implement new helix with existing and new installed separators in the Tevatron • 1.4.3.2 Polarity switches for separators • 1.4.5 Improved Control Diagnostics: BPM system upgrade, IPM, Tune tracker, abort gap monitor, 1.7 GHz Schottky, Dampers, Head-tail Monitor • 2. Maintenance & Reliability Upgrades • 2.1 2003 White Paper & Vulnerability Report • 2.1.1 LINAC 7835 Amplifier Tubes • 2.1.2 Orbit Bump Magnets • 2.1.3, 2.1.4, 2.1.5 Booster RF • 2.1.6, 2.1.7 MI: PS transformers, Kicker vacuum tubes • 2.1.8, 2.1.9 Tevatron low beta power supply, centrifugal cold compressors • 2.1.13 Harmonic Filter Damping Resistors • 2.2 Maintenance Improvements • 2.2.2 Booster Collimator • 2.2.3 Tevatron Abort Improvements (Initial) • 2.2.5 General Alignment

8. Possible Additions • Chromatic Compensation in the Tev Lattice • The mom. spread combined with chromatic error in the optics lead to poorer beam lifetimes. Correct the chromatic errors by implementing new circuits using existing sextupole magnets • Benefits: • Improves beam lifetime leading to 5-10% L.dt gain • Allows Tev to be operated at a new working point near ½ integer resonance. This in turn allows more intense proton bunches to be used in Tev stores. Can lead to another 10% gain in L.dt • A review was held in Dec., 2005 • Three versions of the hardware implementation and cost estimates presented with cost estimates of $620K (v1) (whole ring), $220K (v2) and $107K (v3). • Since v3 seems to provide optimal benefit and the most cost effective, we would like to pursue v3.

9. Possible Gains (Peak Luminosity) • Pbar stack rate + aperture up by another 30% ? • 2.5 MHz pbar acceleration  10-20% • More protons 230E9 ppb  20% • Chromatic Compensation  10%

10. Near term Reviews/Decisions (Contd.) • Beam-beam effects in Tev • Jan. 26, ’06 • Tev alignment SD’06 work • Feb. ’06 • Pbar aperture SD’06 work • Aperture: band-4 cooling tank arrays + DB extraction kicker magnet (+ DB extraction kicker motorized stand)  <7% gain expected; Lot of effort, Risky? Review late February • 2.1 Reliability Upgrades • Infrastructure: 345-KV switchgear spares for KRS, MMS

11. December ’05 Status

12. Baseline Finish Date Actual Finish Date Forecast Date Milestones 100% complete?

13. Progress as of December 31, 2005 % Complete

14. M&S Spending through Dec. ‘05

15. Effort for December 2005

16. Project Highlights • Project Status • V4 of the plan issued in December • Changes documented • Project 82% complete as of Jan. 1, 2006 • Costs: • M&S estimate now (v4) = $18,607K • Jan ’05 status (DOE review) : $17,587K • $15.2 M spent; ~$3.45M to complete; Contingency: $550K ($1,791 K taken away in the past year)