1 AGS RSVP Review 4-5 November 2004 AGS RSVP Upgrades - Overview Philip Pile Collider-Accelerator Department 4 Nov 2004 2 Outline RSVP Construction and Operations AGS RSVP Project organization RSVP Experiments oPhysics Goals and Beam Requirements oK0PI0 Issues oMECO Issues General Considerations AGS RSVP Upgrades - Overview 3 Aerial view 4 12:00 oclock 2:00 oclock 4:00 oclock 6:00 oclock 8:00 oclock PHOBOS 10:00 oclock BRAHMS & PP2PP (p) STAR (p) PHENIX (p) RHIC AGS LINAC BOOSTER TANDEMS NSRL (NASA) g-2 RSVP (NSF) U-line Pol. Proton Source High Intensity Source Slow extraction Fast extraction AGS: Intensity: 7 protons/pulse Injector to RHIC: < 1 hour about every 4 hours AGS/RHIC Accelerator Complex 5 Past AGS Review DOE Review of RSVP Activities at BNL, Jan 2004 Principle charge to review impact of RSVP work on RHIC operations Quote from findings: In summary, the Committee concluded that the RSVP experiments will have minimal impact on the Nuclear Physics program at BNL. Plausible solutions exist for potential higher failure rates or longer repair times. The overall management structure of the project was found to be in the initial stages of development. 6 RSVP Operations Plan AGS Fixed target experiments are presently not supported concurrent with RHIC operations since HEP base support has terminated (FY03). AGS fixed target experiments are still supported but are scheduled to operate outside RHIC operations and only if this can be done with minimal impact to RHIC activities. Full operations costs are recovered. Two AGS experiments ran in this mode in FY2004 K0PI0 (RSVP Experiment) and a US Atlas test The NSF plans to provide base support ($s for personnel and materials) for AGS operations for the RSVP experiments. With this support, concurrent operation with RHIC is planned as well as limited running outside RHIC operations. Logistics of AGS fixed target operation with RHIC will be covered in another presentation (RSVP Operations and D&D - Pile) 7 AGS floor changes, RSVP era MECO will be situated in the A-line (7.5 GeV/c beam). K0PI0 will be situated in the B-line (25.5 GeV/c beam) The AGS NASA Radiobiology experiment (A3 beam) will be relocated at RSVP expense. The RHIC e-cooling R&D project will be situated in the North East Building Addition (C1/C5 beam area) The D-line will be decommissioned. Beam will be delivered to only one experiment at a time (no beam splits). 8 V1, Beam Line V-Target * * * * * * D-Target A-Target B-Target C-Target FY2006+ Experiments ~Firm Commitment Oct 04 RHIC Transfer Line U Line B5 RSVP, K0PI0 E926, K L 0 0 (NSF 2005 construction start) A3 RSVP, MECO E940, N eN (NSF 2005 construction start) B -Target AGS Experimental Area RHIC eCooling Test Facility (under construction) The Plan D-Line Decommissioned Switchyard simplified A,B,C Lines run as ORs D-Line: Decommission FY NASA Radiobiology 9 Construction with RHIC Present situation during RHIC injection oSwitchyard not accessible with beam in AGS oK0PI0 primary cave (B-line) accessible oMECO primary cave probably ok, fault study needed oAlmost decoupled from RHIC operations Plans oAGS extraction beam plug Will allow access in switchyard and elsewhere in AGS SEB area oNew A-line (MECO) beam plug Will allow beam in any other beam line Will allow work on MECO primary beam from RF Kicker on oNew B-line (K0PI0) beam plug Will allow beam in any other beam line Will allow work on K0PI0 primary beam outside of switchyard oThis decouples RSVP construction from RHIC operations RSVP construction during RHIC operations 10 Except for AGS modifications, RSVP construction will be independent of the RHIC operations state NO IMPACT A combination of present C-AD personnel and new hires will be used for RSVP construction. If conflicts arise between RHIC and RSVP priorities for shared personnel, RHIC wins and RSVP issues have to be worked out to not impact RHIC NO IMPACT RSVP Construction Impact on RHIC 11 Component activation during RSVP operations Same limits to lost beam power will be applied during RSVP operations Accelerators remain maintainable by hand K0PI0 proton throughput ( 20 Tp/s) is similar to previously achieved MECO proton throughput ( 40 Tp/s) is ~ x2 previously achieved RSVP integrated protons ~ x2 pre-RSVP era Cool-off period of a few hours required to access activated areas for emergency repairs -> possible impact on RHIC. Partially offset by early detection of failed components. Preventive replacement of strongly exposed components: Replace one or two Booster magnets every year as indicated by High Pot tests Replace extraction elements once during RSVP experiment A concern 12 RSVP Project Organization JOINT OVERSIGHT GROUP NSF; DOE NP; DOE HEP; NSERC RSVP PROJECT DIRECTOR and DEPUTY W. Willis, J. Kotcher KOPIO WBS 1.2 M. Marx MECO WBS 1.3 M. Hebert Switchyard A. Pendzick K0PI0 C. Pearson MECO D. Phillips Project Office AGS Booster K. Brown AGS WBS 1.4 P. Pile/A. Pendzick 13 AGS Infrastructure Costs (fully burdened) * includes Personnel, M&S, DTS and Power Costs, assumes Jan 04 plan, FY06-FY10 running with RHIC 14 AGS/Booster WBS Four parts to this AGS/Booster legacy repairs and high intensity upgrades ($11.5M Direct) Not part of the original RSVP cost estimate Result of internal analysis since the Jan 04 DOE Review Environmental requirement - Radiation Caps on AGS and Booster is largest piece ($3.6M Direct) MECO Specific Modifications ($0.9M Direct) Was in MECO Experiment WBS prior to July 2004 K0PI0 Specific Modifications ($3.9M Direct) Was in K0PI0 Experiment WBS prior to July 2004 AGS beam development Originally in NSF pre-ops budget area (not part of construction budget) 15 Switchyard WBS New to the RSVP Project ($3.7M Direct) Existing switchyard not in condition to support high intensity operation for RSVP experiments Simplification/Modernization planned Beam plugs to decouple construction work from beam development Replace obsolete equipment Minimize beam loss Achromatic beam tunes to target stations No beam servoing No ramped magnets No beam splitters No beam sharing No Lambertson magnets Less instrumentation needed Less maintenance 16 K0PI0 WBS ($7.0M Direct) Prior to July 2004, managed by the K0PI0 experiment Primary Beam up to and including target station Neutral Beam Experimental area Project support and integration 17 MECO WBS ($7.6M Direct) Prior to July 2004, managed by the MECO experiment Primary Beam up to and including target station Superconducting Solenoid and refrigeration infrastructure (support role) Experimental area Project support and integration 18 AGS Project Office WBS ($1.1M Direct) New to the RSVP Project as a result of July 2004 NSF-DOE MOU Overall schedule and integration Fiscal Reporting January 27, 2004J. Sculli19 RSVP Participants Scientific Collaborations US Collaborators Arizona State University Boston University Brookhaven National Laboratory University of California, Irvine University of California, Berkeley University of Cincinnati University of Houston University of Massachusetts, Amherst Stony Brook University University of New Mexico New York University University of Pennsylvania Syracuse University Thomas Jefferson National Accel Facility University of Virginia Virginia Polytechnic Institute and State University College of William and Mary Yale University International Collaborators Canada Italy Japan Russia Switzerland Sponsoring agency National Science Foundation, Division of Mathematical and Physical Sciences, MREFC Program. Host Laboratory Brookhaven National Laboratory, Operated by Brookhaven Science Associates for the Department of Energy, Office of Science, Division of Nuclear Physics 20 RSVP Physics KOPIO- Measurement of K L 0 Uniquely determines J CP, the fundamental parameter of SM CP-violation, with ~2% precision Single event sensitivity