Project X & Summary / Future Collaboration

1. Project X & Summary / Future Collaboration Bob Kephart ANL-FNAL Collaboration Meeting June 7, 2010

2. Introduction • SRF is an enabling technology envisioned for use in many new applications of interest to the Office of Science • International Linear Collider, Project X, a Muon Collider • Rare isotope accelerators, Lights Sources, ERL’s • ADS, Accelerators for national security and medicine, etc • ANL has many years of experience with SRF related to the construction and upgrades of ATLAS • Also plans for various other SRF based projects • FNAL has been building a powerful SRF capability in support of ILC R&D and Project X • Collaboration on SRF via the joint processing facility was natural and very successful (Mike’s talk) Page2

3. ILC R&D • The joint facility is now contributing data towards the ILC quest for high gradient (35 MV/M) cavities! Red circle = ANL/FNAL ILC goal 4 of 14 cavities > 34 MV/M were processed at ANL Page3

4. ILC R&D • But… Cavity yield > 35 MV/ M is still < 50% • Mechanisms limiting yield not fully understood • Both labs and University of Chicago work closely on R&D to understand SRF materials and surfaces. • Lance Cooley described this effort. • Also a successful collaboration in that the whole is more than the sum of the parts • In this talk I will describe briefly FNAL’s plan for Project X with an emphasis on the SRF component • Finish with possible areas for future collaboration. Page4

5. A new multi-MW Proton Source under development at Fermilab. Enables a world-class Long Baseline Neutrino Experiment (LBNE) via a new beam line pointed to DUSEL in Lead, SD Enables a broad suite of rare decay experiments Several versions of this machine have been examined All versions provided 2 MW of beam power to LBNE Favored version (ICD-2) employs a 3 GeV 1 ma CW linac Provides an additional 2 MW to the high intensity program Very flexible beam manipulation via RF separators 3-8 GeV = either a pulsed linac or a rapid cycling synchrotron. Project X: What is it? Project X website: http://projectx.fnal.gov/ Page5

6. Project X 3GeV High Intensity Program (2.8 MW) 3GeV CW SRF Linac 1 ma H- or Protons Recycler Linac: 1 mA x 5 ms @ 10 Hz 5 pulses per fill 3 8 GeV Pulsed Linac (or RCS) Stripping foil 8 GeVfast spill (200 KW) 2.2 x 10 14 Protons / 1.4 sec LBNE (2 MW) 120 GeV Fast extraction 1.6 x 10 14 Protons / 1.4 sec Main Injector 1.4 Sec cycle Single turn transfer At 8 GeV 3-8 GeV linac would be 1300 MHz pulsed retains synergy with ILC R&D but long pulse R&D needed Page6

7. Project X Linac’s • Design based on 3 families of 325 MHz Spoke resonators, two families of 650 MHz elliptical cavities, then 1300 MHz ILC cavities Ion source, RFQ SSR0 SSR1 SSR2 β=0.6 β=0.9 ILC MEBT 325 MHz, 2.5-160 MeV 1.3 GHz 2-3 GeV 650 MHz, 0.16-2 GeV Note: 650 MHz, b=0.9, 5-cell cavities are same physical length as 1300 MHz, b=1.0, 9-cell cavities so cryomodules are similar Page7

8. Summary of PX 3 GeV CW linac 290 Cavities, 34 cryomodules Page8

9. Summary of PX 3-8 GeV pulsed linac 400 Cavities, 25 cryomodules • Gradient ~ 25 MV/m • 1 mA 5 ms beam pulse @ 20 Hz (Upgradeable to CW) • Construction of Project X would substantially contribute to U.S. industrialization of SRF for ILC Page9

10. Integrated ILC/PX SRF Plan (Cryomodules) Page10

11. New FNAL SRF infrastructure Dressed Cavities (7) Cavity tuning machine VTS HTS VTS String Assembly MP9 Clean Room Final Assembly 1st U.S. built ILC/PX Cryomodule

12. SRF Progress FNAL S1 global Cavities @ KEK VTS 1 Tests Thermometry 325 MHz spoke resonator VTS 2-3 Civil construction NML ILC and PX test bed Page12

13. Progress at NML CM Feed Can Large Vacuum Pump 1st Cryomodule installed He Refrigerator Control Room Capture Cavity II @ NML Operating at 2K Page13

14. New buildings and Refrigerator (ARRA) Page14

15. Opportunities for Future Collaboration • Continued R&D towards national goal of high gradient cavities for ILC (operation of joint EP processing facility at ANL, testing at FNAL) • Project X R&D and eventual construction • 1300 MHz cavity processing (overlaps with ILC R&D) • 650 MHz cavity processing (new EP rig at ANL) • Spoke resonator cavity and cryomodule design and construction (CM similar to ATLAS upgrade ?) • Processing of spoke resonators? • Continued SRF surface and materials R&D • Cost reduction R&D: Atomic Layer deposition,, multi-layer cavities, hydro-formed cavities, tumbled cavities, Chemical Mechanical Polish, etc Page15

16. Summary • ANL-FNAL Collaboration on SRF has been successful • Cooperative work on 3.9 GHz cavities for DESY and spoke resonators have yielded world class results • The joint cavity processing facility is operational and producing cavities with world class performance • Many pieces of the new FNAL SRF infrastructure are operational and in use, lots more is under construction • The ANL-FNAL-U of C collaboration on SRF materials and surfaces is functional and adding to the world’s understanding of SRF surfaces • Better than any single institution could have managed on its own • Opportunities for real break thru’s (ALD, CMP, hydro-form, etc) • Lots of good ideas..limits are simply $ and people • Many opportunities for future collaboration on Project X and other future SRF projects ( e.g. ADS !!!) Page16