Overview of the HINS R&D Program in the Context of Project X

1. Overview of the HINS R&D Program in the Context of Project X Bob Webber Instrumentation Department Meeting February 20, 2008

2. Definitions • Proton Driver • Generic name for past ~15 years for new, higher intensity machines and schemes to replace present Linac and Booster • Both linac and synchrotron options have been considered • Most recently, the name for an 8 GeV superconducting ILC-like H- linac that fell out of favor relative to ILC • High Intensity Neutrino Source – HINS • A DOE approved and funded avenue to pursue advanced low energy linac technologies (ala Proton Driver front-end design) as well as e-cloud, H- injection, and other small scale R&D activities in the name of neutrino science • Project X • A proposal, publicly promoted by Fermilab Directorate, to simultaneously provide 2 MW of protons for neutrinos at 120 GeV and 200kW of protons for experiments at 8 GeV • Includes 8 GeV linac with beam current and pulse length parameters aligned with those of the ILC • Includes upgrades to RR, MI, and NUMI target system

3. Project X Layout 120 GeV fast extraction spill 1.5 x 1014 protons/1.4 sec 2 MW New 8 GeV extraction 1 second x 2.25 x 1014 protons/1.4 sec 200 kW Recycler 3 linac pulses/fill Main Injector 1.4 sec cycle New 8 GeV H- Linac 9mA x 1 msec x 5 Hz New Stripping Foil Single turn transfer @ 8 GeV 0.4-8 GeV ILC Style Linac 0.4 GeV Front End Linac Project X Overview - McGinnis 3

4. The Project X Plan • It is anticipated that the Project X R&D Program will be undertaken as a “national project with international participation” • Fermilab does not have the personnel resources to undertake the Project X R&D Program, or a follow-on construction project, on its own • … the intention is to organize and execute the R&D Program via a multi-institutional collaboration, drawing significant participation from outside of Fermilab • The goal is to give collaborators complete and contained sub-projects, meaning they hold responsibility for design, engineering, estimating, and potentially construction if/when Project X proceeds • A very readable and comprehensive overview of current Project X thinking is offered in Steve Holmes’ 1/31/08 talk to the P5 Committee http://www.fnal.gov/directorate/program_planning/P5/P5_Jan2008/Talks/Holmes_PX.pdf • A detailed 4-year Project X R&D plan has been developed and can be found at http://projectx.fnal.gov/RnDplan/index.html

5. Project X Time Line Goals • 2008: Develop design and engineering concepts • Form Project X R&D Collaboration • Achieve CD-0 approval • 2009: Initiate work on a Conceptual Design Report • Start R&D on technical components, in coordination with the ILC, SRF, and HINS programs • Continue accelerator physics and engineering design • Initiate project documentation • 2010: Finish Conceptual Design Report • Achieve CD-1 approval • Continue R&D; initiate industrialization activities • Form collaboration to undertake project construction • Continue project documentation • 2011: Develop preliminary design and Technical Design Report • Establish project baseline • Achieve CD2/3a approval • Initiate long lead (cryomodule) procurements • 2012: Begin ~ 4 year construction project

6. The Beams of the Linacs * full un-chopped 3 msec pulse at klystron-limited 20 mA ** ILC bunch intensity is 2E10 (electrons)

7. The Linac Beam Time Structure 1 msec Linac beam pulse 4 msec full scale Linac beam chopped for 700 nsec RR Abort Gap 40 µsec full scale Linac 325 MHz beam chopped for RR RF 3-5 linac bunches per 53 MHz RR RF cycle 100 nsec full scale

8. HINS Transverse Beam Parameters at 15 mA Room Temp Linac First SSR1 Cryomodule MEBT 10 6 2 mm 100% RMS

9. HINS Longitudinal Beam Parameters at 15 mA RMS Bunch Length at 45 mA mm RMS Bunch Length Scale??

10. 150 ft. HINS Floor Plan in Meson Detector Building ILC HTC Cave HINS Cavity Test Cave RF Component Test Facility Klystron and Modulator Area 60 MeV Linac Cave Existing CC2 Cave Ion Source and RFQ Area

11. Final 7 of 16 cavities/solenoids in Room Temperature Linac Section HINS RT Section Layout MEBT Ion Source RFQ dimensions are mm Start of first SSR1 Cryostat

12. HINS SSR Section Layout SSR1 Cryomodule #2 SSR1 Cryomodule #1 9 solenoids/9 cavities dimensions are mm SSR2 Cryomodule #1 6 solenoids/11 cavities SSR1 Cryomodule #2 HINS includes two SSR1 Cryomodules and one SSR2 Cryomodule

13. HINS Status • 2.5 MW, 325 MHz HINS klystron is operational • HINS RF Component Test Facility is operational • Room temperature cavity conditioning is in progress • Four cavities on hand, remaining 12 on order • Ion Source and RFQ Area is fenced and outfitted with utilities • Proton ion source to move to MDB in March • RFQ delivery expected in ~May? • Superconducting solenoids are on order and cryostat procurement is beginning; completed assemblies will begin to appear late Summer 2008 • Cryostat for testing individual SC cavities is being fabricated and will appear in Fall 2008

14. HINS Beam Staging • 2.5 MeV operation • Short temporary diagnostic/transport line and dump after RFQ • Incomplete conceptual design of diagnostic line exists • Dump is assembled • RFQ delivery and RF conditioning is still critical path • Present goal for 2.5 MeV beam is mid-summer this year • >2.5 MeV and <10 MeV operation ?? • Might operate MEBT plus first four? RT cavities with beam • Test RF distribution and RF high power vector modulator control • Not before early 2009; limited by enclosure construction, MEBT buncher cavity construction, LLRF development, and focusing solenoid production • Full 10 MeV Room Temperature section operation • Late Summer 2009? Solenoid production and cryogenics system are critical path • 20 MeV operation with first SSR1 cryomodule • Summer 2010? SSR1 cavities, cryomodule and solenoids are needed • Full 60 MeV operation • Late 2011?

15. 2.5 MeV Transport Line Concept dimensions are inches Aluminum coil beam absorber goes here RFQ is here Need just one current monitor

16. Instrumentation Work Needed Now • For 2.5 MeV operation • Complete diagnostic line plans • Procure/fabricate components and electronics • Be ready for 2.5 MeV beam by ~June this year • For overall HINS program • Development of a comprehensive beam diagnostics plan • Someone to coordinate on a ~50% time basis for a few months would be helpful • Scope out and document the requirements along with the current physical constraints and implications • Begin beamline and electronic hardware development • Develop plans for controls system interface and outline software requirements • For Project X • Consider ideas to instrument 8 GeV superconducting Linac with beam structure described earlier • Important question --- electrons in the high energy end of the Linac?

17. The end • Backup slides follow

18. Key HINS 2008 Objectives in Meson • Test first SSR1 superconducting spoke cavity at full pulsed power • Achieve 2.5 MeV beam from RFQ • Demonstrate controlled operation of multiple 325 MHz normal conducting cavities with vector modulators • Upgrade LCW system • Design and possibly begin construction of RT linac section shielding cave in MDB

19. Pulsed Power Test of First SSR1 • Test Cryostat • Cryostat design yet to be completed and cryostat procured • Headed by Tom Nicol working with industry • Cryostat to be installed by AD mechanical and cryo techs • Earliest delivery of cryostat is ~June ’08 (next slides) • Cryogenics for Cryostat • AD Cryo Dept is working to identify vendor for both design and fabrication of cryo transfer line and interface equipment • AD Cryo design resources are saturated • Earliest delivery of cryo components ~summer ‘08 • Cavity • First cavity fabrication is on-site • BCP processing is collaborative effort with ANL – first go in January ’08? • Plan bare cavity CW test in ILC-VTS early in 2008 • Processed/dressed cavity is expected to be available before test cryostat facility • Cavity Power Coupler • Non-adjustable coupler design is nearly complete • Estimate first coupler delivery and power tests early Fall 2008 • Above efforts are all severely constrained by availability of cryogenics engineers and mechanical engineers with cryogenic component experience

20. Test cryostat and SSR cryomodule resources • Test cryostat and cryomodule design • T. Nicol, S. Meredith, T. Page for HTS leads. • Power coupler design • T. Nicol, T. Khabiboulline, S. Meredith. • Cryostat assembly • T. Nicol, Technicians TBD. • MDB installation • TD and AD/Cryo. • Potential future resources • T. Page • G. Lanfranco • D. Arnold • L. Simmons Tom Nicol slide Sept. 27, 2007

21. Test cryostat status • Vacuum vessel • Order placed September 19. Quoted delivery 16 weeks. • Vendor just ordered material ~Dec 1. Expect delivery no sooner than March 1. • Magnetic shield • Plan to soul source design and fabrication to Amuneal for ~$38,000. Estimated delivery 12 weeks. • Vendor has sole source. No word on delivery. • Thermal shield and MLI • Design in process. Detailed design estimated November 1. • Detailed design complete and being reviewed. Not on order. • Support post • Design complete – release by October 1. Estimated delivery 8 weeks. In-house assembly required. • Fabrication of parts complete for first three units. Will build in-house as time is available. • Internal piping • Conceptual design only. Detailed design complete estimated January 1. • One meeting with AD-cryo. Detailed design probably won’t start until after March 1. • Power coupler • Version 2 design complete – release by October 15. Estimated delivery 16 weeks. • Bids due this week. Some design work indicated following meeting with AMAC. Expect to re-bid with bids due ~ March 1. AMAC’s schedule is similar. • Final assembly • Earliest delivery to MDB ~ March 15, 2008. Vacuum vessel, shields, piping, etc. No cavity or coupler. Assumes TD technician availability. • Estimated delivery to MDB delayed at least 3 months to mid-June, 2008. Tom Nicol slide Sept. 27, 2007 Updates in red 12/6/07 3 month slip in <3 months

22. 2.5 MeV Beam from RFQ • Infrastructure • Caged area for ion source and RFQ at the HINS location is now being outfitted with utilities • Ion Source • Loma Linda type proton source (with upgraded support systems) has been recently operated in MS6 by Henryk Piekarz et al. • Proton source move to MDB expected in late January ‘08 • Untimely loss of Doug Moehs is a blow to H- source development, yet to be addressed for both HINS and AD ops • RFQ • In RF tuning lab at ACCSYS as of Nov. 27 report • Trip to witness bead pull test is pending for mid-December • Delivery expected late January ‘08 • RF Power Distribution • Temporary feed for RFQ is being installed; parts are on hand • RF and Rad Safety Issues • Resuming regular meetings with AD ES&H • 2.5 MeV Beam – May Day???

23. Multiple Cavity/Vector Modulator Operation • Proof-of-principle demonstration is FY’08 objective • RFQ plus one or two RT cavities, not in final configuration • Cavities perhaps not installed in final position • Makeshift RF distribution components • 325 MHz Vector Modulators • 75 kW phase shifters have been demonstrated • 75 kW modulator is being tested to understand coupling between amplitude and phase modulation • 500 kW modulator (for RFQ) testing on hold • Commercial hybrid coupler failed, replacement on order • Ferrite phase shifters OK so far • Awaiting high power circulator delivery (customs paperwork) • Vector Modulator Bias Power Supplies • AD EE Dept has provided one pair of supplies for initial testing • They appear committed to continue work on this project • Low Level RF Controls • Yet to identify resources to focus on these issues • This will be the critical path!

24. Meson LCW System Upgrade • Meson LCW system is incapable to provide HINS required flow • AD Mechanical Dept. Fluids Group is finalizing details of upgrade plan • Finalization of design is yet to be completed (accelerator shutdown etc.) • Includes new pump skid and extensive new piping • Price tag is in the order of ≥$100k • Installation will have ~2 week integrated impact on water availability for HINS & ILC in MDB • Work is unlikely to begin before end of February • Interruptions of water service unlikely before March • Elvin Harms from ILC-HTS group is in the loop

25. RT Linac Section Cave in MDB • Detailed cave design must begin this year • Must establish scale of major objects to define cave size • Cavity cryostat dimensions and peripherals • Scale of cryogenic system feedcans and transfer lines • Must develop plan for phased installation and operation as higher energy components become available • Must quantify required utilities and cave infrastructure • Must address safety issues • Egress • Radiation shielding • Accessibility for maintenance • Cost estimates and construction plan must be developed • Design around available concrete shielding blocks • Are available blocks sufficient? – possible major cost impact • Construction could impact other MDB operations

26. Broad Impact Meson Questions • What is to be the disposition of the present CC2 Cave? • We are now installing HINS ion source and RFQ infrastructure north of cave • Per Jay Theilacker, design and installation of HINS Linac cryogenics is considerably simpler and less expensive if CC2 cave was dismantled to allow a straight shot for cryo transfer lines into HINS Linac cave • HINS Linac is expected to require the full capability of Meson Cryo plant (in 2010?) • How will this be compatible with other planned MDB activities? • What are those planned activities?

27. Non-MDB 2008 Priorities Requiring Resources • SSR1 cavity processing (up to 3 beyond first) (TD, APC) • SSR1 helium vessel, tuner, coupler, and cryomodule design (TD) • RT section RF distribution system design and procurement (APC) • Procure and test SC solenoids and cryostats for RT section (TD) • Vector modulator power supply system design (AD) • SC solenoid power supply system design (AD) • Procure, dress, RF condition remaining 17 RT cavities (TD, APC)