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Tevatron progress: Aug to Nov’03, look in FY’04

Highlights the progress at Tevatron from August to November 2003, with focus on luminosity records, beam physics advancements, diagnostics, and upcoming projects until FY'04. Includes key achievements and ongoing developments in operations, maintenance, and equipment installations.

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Tevatron progress: Aug to Nov’03, look in FY’04

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  1. Tevatron progress: Aug to Nov’03, look in FY’04 • Luminosity: (average initial peak L) • End of July (5 stores #2815-2826) L=40.1 • End of Aug (7 stores #2934-2956) L=39.9 • record L as of Aug.8 45.3e30 store #2824 record L as of Nov.7 48.9e30 store #2887 • lifetimes of N_p dropped from 70 to 32 hrs , L – from 12 to 9 hrs, N_pbar and eff-emittance ~same (~ 30hrs) • FY’03 Integral 238 pb-1 (goal was 230 pb-1)

  2. Highlights on Operations/Reliability: • FY’03 goal of 230 pb-1 2 weeks before shutdown • New helix >500GeV to Seq.4  +2% ramp eff (Yuri) • Lattice corrected at inj  helps ?pi (Valery) • Crate PSs problems (3 stores) • 1 bckt off pbars (2 stores, 3 days) – fixed • High proton losses early in stores • 1st inj damper ½ commissioned (JS, CYTan)

  3. Tevatron Beam Physics Progress: • V4YA ramp helix commissioned (Yuri, Jerry, +) • series of lattice measurements, implementation of corrected lattice at injection (Valeri, Petr) • direct -function msmnt QXR – way off the model (AJ) • b2 snapback news, no need in 6 ramps, etc (Pierre, Velev) • calc’s&suggestions on octupoles/A0 sextupole (PI, YA) • * est 37-44 cm from L(z) (VS), drift since Feb (Vaia) • theory of instability and inj damper, recomd’s (A.Burov) • SDA of high proton losses (Paul, Vaia, VS) – still ??

  4. Tevatron Diagnostics: • new BPM design progress(S.Wolbers,J.S.,M.M.+) • Cv,h from “tunefitter” works (Paul) • new SBD l algorithm (Alvin) • IPM reviewed, OK’d (AJ+) • Bunch phase detector design started (Claudio, JS) • HLS system moved to sector B (BINP, J.Volk) • Strange 21 MHz pbar Schottky (Markus H.) • FWs test/analysis in progress(S.P,K.Genzer) • Abort gap monitor improved, unexplained study results (H.Cheung, S.P)

  5. Shutdown’03 Projects J.Volk many preceded by internal reviews • F0 Lambertson Liner P.Ivanov, A.Chen • Reshim 106 dipoles D.Harding, J.Annala • A48 Collimator R.Moore • New octupole circuits P.Ivanov, J.Annala • A0 sextupole D.Still,Y.Alexahin • Fix cold leaks A4,E2, F1 D.Augustine • Fix aperture restrictions (A0, D0..) C.Moore,B.Hanna,+ • Vacuum improvements (A1/P1,F0) B.Hanna • Replace rusty stands (~ 80 dipoles) M.McGee, J.Volk • Survey and Alignment (unrolls, …) Ray,Craig, Norm,Keith,AMG • BPM wiring F.DeJongh, + • TevNet (survey network) AMG • B-sector HLS system A.Chupira,J.Volk,Todd

  6. Next Two Months: • Operation/Maintenance: • Tev startup 7 days 11/18-11/25 • Back to >40e30 mid-Dec • Beam studies after the startup: • impedance measurements after shutdown  explore larger N_p (PI, Bruce, +) • lattice msmnts after shutdown (VL, PI, +) • commission inj-dampers (JimS, Tan) • possible studies to reduce high LOSTP (TEL?) • P1/A1 rolls  Emm at injection (DaveJ,Val,JA) • 300W kicker to clean DC beam (CYTan, J.S) • commission SL abort gap monitor (Harry, Stephen,+)

  7. Next Two Months: Expectations • Last time it was “… we are around 45-51 by Sep 8” - we are at 49e30 • Over the next 2 months, I expect: • be around 40e30 mid-Dec • possible improvements • 10-20% more p due to reduced Lambertson impedance • As the result, I expect we’ll be around 45-55e30 by Jan.8, 2003

  8. Major FY’04 Projects • OPERATIONS J.Annala, Tev Dept • commission inj dampers J.Steimel, et.al • install new separators next shutdown R.Moore, et.al • commission new BPM system S.Wolbers, et.al • install IPMs next shutdown A.Jansson, et.al • global realignement, global HLS R.Stefansky, et.al • modify/install(?) TEL next shutdown V.Shiltsev, et.al • commission tunetracker C.Y.Tan • commission tunefitter applications P.Lebrun, et.al • install C_vh on-line system V.Ranjbar, et.al • B-field on/off(?)-line studies P.Schlabah, et.al • vacuum improvement next shutdown B.Hanna, et.al • develop fast lattice msmnt/correction system V.Lebedev, et.al • install crystal collimator next shutdown D.Still, et.al • * at IPs back to 35 cm, further reduce M.Martens, et.al

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