Updates on Tevatron and LARP Vladimir Shiltsev FNAL/Accelerator Physics LARP/Accelerator Systems

APEX Mtg 11/02/ Shiltsev 2 In short FY06 goals 725 / 580 pb-1 Delivered 620 pb-1 FY07 goals ~1750 / 760 pb-1 Delivered by Nov.1 50 pb-1 Yesterday, CDF Detector celebrated 2fb-1 of data delivered ! 

APEX Mtg 11/02/ Shiltsev 3 Pbar production task force initiated Dec-Feb 2006 Best luminosity before shutdown: –171e30 cm-2s-1 –25 pb-1/week Shutdown to Upgrade D0 detector Mar-June 2006 Fast start up (<2 weeks) Rush of records: 171  182  191  205  228  229e30 Current best: –store 229.0e30 (avg CDF & D0) –week 33pb-1 –month ~120pb-1 Average store hrs (longest 54hrs), ~ hrs/week 36x36 bunches ~270e9 p/bunch, 60-80(max) pbars/bunch Details

APEX Mtg 11/02/ Shiltsev 4 Reduction of beta* to 28 cm Sep’05 ~8 % Pbar production task forceFeb’06 ~10 % Tevatron 150 GeV helix  more p June’06 ~10 % Tev collision helix  lifetime July’06 ~15 % New RR WP  emittances, lossSep’06 ~25 % D0 luminosity counters rescaledOct’0615/2=8% Improvements over last ~1yr

APEX Mtg 11/02/ Shiltsev 5 Content

APEX Mtg 11/02/ Shiltsev 6 Pbar production (not cooling!) : –still less 20e10/hr Beam-beam effects in Tevatron: –Ksi~0.025 for pbars  losses/emittances –Ksi ~0.015 for protons  losses/emittances Availablity: component failures  no L time –10/30/06 - ??11/08/06?? Tev Cryo vacuum –10/09/ /23/06 Tevatron Q,D,spool –02/23/06 - Tev magnet failure, early Shtdn start –01/14/ /27/06 Tev magnet –01/03/ /06/06 AA magnet –11/22/ /12/05 Tevatron magnet Plus, power glitches, etc: –Jul-Aug’06: 45 stores, 15 aborts/quenches –Sep-Oct’06: 36 stores, 17 aborts/quenches Major Limitations

APEX Mtg 11/02/ Shiltsev 7 Content

APEX Mtg 11/02/ Shiltsev 8 Pbar production: –AA optics –Faster AA to MI to RR transfers (<15 min) –Pbar Target optimization New Tevatron WP: –To improve luminosity lifetime (less losses, no dEmm) –Allow higher Np and Na Next Steps (till ’09?) (yr?) V.Lebedev

APEX Mtg 11/02/ Shiltsev 9 Content

APEX Mtg 11/02/ Shiltsev 10 STATE of LARP …after Doe Review Jun’06 LHC Upgrades Workshop in Spain, Oct’06 LARP Collaboration Meeting at BNL, Oct’06 Executive Committee Mtg, Oct’06

APEX Mtg 11/02/ Shiltsev 11 LARP Accel Systems Progress ‘06 Schottky being baked, will go into LHC tunnelSchottky being baked, will go into LHC tunnel TCFB: success at SPSTCFB: success at SPS 4 long-term hardware SLAC joins commissioning forces to open in Nov’07, new - LAFS RC work at full speed, a lot of changes, delay SPS beam studies: BBQ PLL, Q’ head-tail, bent crystal, etc Wires built for RHIC tests # of LARP presentations at Valencia workshop

APEX Mtg 11/02/ Shiltsev GHz Schottky Detector

APEX Mtg 11/02/ Shiltsev 13 PLL Success on SPS Ramp

APEX Mtg 11/02/ Shiltsev – First Year of “Deliverables” “Hard deliverables” are the projects which CERN needs but can not back-up itself in case of failure (thus, special attention and protection needed): –Lumi Monitors for 2 IPs (2007) –Tune Feedback (2007) –Beam Commissioning ( beyond) –Phase II rotating collimators prototype (2009)

APEX Mtg 11/02/ Shiltsev 15 Accelerator Systems FY07 Priorities 1.Lumi-Monitors: construct, install, start commissioning 2.Tune&Coupling FB: deliver design, participate in installation and commissioning 3.Schottky: participate in installation and commissioning 4.Hardware Commissioning: execute current plan – SAFELY! 5.Beam Commissioning: develop acceptable/detailed execution plan for FY08+ by ~mid-07 (more from BNL!) 6.Physics experiments: RHIC (BBLR), Tevatron(PLL), ecloud 7.Other tasks: execute Task Sheet’s Plans

APEX Mtg 11/02/ Shiltsev 16 CARE–HHH: upgrades discussed IR Upgrade: – both quad first paths NbSn, NbTi Magnet R&D… Magnet R&D… Magnet R&D – D0 3.5m from IP –<1mrad Crab Crossing not excluded Low cost, potential high gain: – low-noise feedback – collimator schemes (RC, LEL, Crystals) – beam-beam compensation schemes (W,LEL) Upgrade of Injector Chain: – new Linac, PS+, PS2 – SPS+ incl. SF-SPS

APEX Mtg 11/02/ Shiltsev 17 RHIC BBLR wires – assembly wires (2.5m long) with strong-back (-profile) 7 support points NEG coated chambers during assembly

APEX Mtg 11/02/ Shiltsev 18 Things not in FY’07 budget Project Reason Longitudinal Density Monitorbudget Fast Magnet Ramp Measurement Systembudget Crab Cavity – hardware part budget E-lensesbudget Bent Crystal collimation (see below)too early LER-LHC 1.5TeV (see below)little $$ Optical Stochastic Coolingtoo big for LARP

APEX Mtg 11/02/ Shiltsev 19 Summary: DoE Review was (overall) successful LTVAC started Instrumentation tasks are of the highest priority in FY’07 Constrained by budget, #of tasks dropped Plans to further improve CERN-LARP communication