HPTF Plans & Progress

1. HPTF Plans & Progress Peter Limon May 11, 2005

2. Outline • A Description of HPTF and Its Goals • HPTF Plan • General Design Philosophy • Schedule Requirements • The HPTF Plan • Major Risks • Conclusions P. Limon --- Accelerator Advisory Committee

3. What Is HPTF? • HPTF is a high-power testing subset of a national superconducting RF R&D effort. • HPTF will be located at Fermilab. • The Proton Driver and Single-Module test areas will be in the Meson Detector Building to take advantage of available cryogenics • The High-Brightness Photoinjector and ILC areas will be in the New Muon Lab to take advantage of the excellent space. • HPTF supplies infrastructure including space, cryogenics, power and other utilities, controls, radiation shielding, etc., for complete high-power tests. P. Limon --- Accelerator Advisory Committee

4. HPTF Goals • Guiding Principles • HPTF will be inclusive of many different types of modules, b<1, b=1, and CW • HPTF should not be the cause of delay in the initial testing program. Be ready when modules are available to test. • The tests will include: • High-power pulsed and CW RF tests of modules • High-power pulsed and CW tests with beam P. Limon --- Accelerator Advisory Committee

5. A Plan for HPTF • Distribute HPTF to Several Locations • The Proton Driver front end and all single-module tests (without beam) will be at the Meson Lab • The Photoinjector and ILC beam tests will be at the New Muon Lab • A temporary cryogenic system is required at NML to meet the schedule. There are two options: • Dewar or tanker-supplied helium and a gas recovery system in Lab B, or • a satellite refrigerator at NML and compressors at Lab B P. Limon --- Accelerator Advisory Committee

6. PI @ ILC Schedule - Meson Lab P. Limon --- Accelerator Advisory Committee

7. PI @ ILC Schedule - New Muon Lab P. Limon --- Accelerator Advisory Committee

8. The Meson Lab • Advantages • There is an existing cryogenic system • 1500 W capability at 4.5 K • Or 60 W capability at 2 K with the addition of vacuum pumps. • Plus additional capability at 4 K for shields • This is sufficient cryogenics for all PD front end testing • A lot of available space • There is a potential for a long beam line if we want to test more of the PD front end. • Disadvantages • The building is at grade, so a lot of shielding is needed for high-power beam (i.e. the PI+ ILC beam). • Not enough cryo to run PD and 2 K tests simultaneously P. Limon --- Accelerator Advisory Committee

9. The Meson Lab P. Limon --- Accelerator Advisory Committee

10. Meson Refrigerator P. Limon --- Accelerator Advisory Committee

11. HPTF Plan @ Meson Lab P. Limon --- Accelerator Advisory Committee

12. Meson East, September 2004 P. Limon --- Accelerator Advisory Committee

13. Meson East 4 May 2005 P. Limon --- Accelerator Advisory Committee

14. Meson Polarized, September 2004 P. Limon --- Accelerator Advisory Committee

15. Meson Polarized, 4 May 2005 P. Limon --- Accelerator Advisory Committee

16. The New Muon Lab • Advantages • A great space • Long enough for PI plus two ILC modules • Big enough for all necessary equipment and more • Space for CW and vertical-dewar tests, for example • Floor is 20’ below grade, making radiation shielding easier • Plenty of unencumbered space around the building for additions • A new big refrigerator and building • Building a tunnel extension is straightforward • It’s ~ 2 km to the site boundary • Disadvantages • Must move the Chicago Cyclotron magnet now • A tunnel extension is necessary have more than two ILC modules • Requires a temporary cryogenic system to keep to the schedule P. Limon --- Accelerator Advisory Committee

17. Additions to the New Muon Lab • Temporary cryogenics at NML; we have a plan • Moving the Chicago Cyclotron magnet • Two commercial cost estimates are ~$300 K for rigging • Plus ~$200 K for road and wall removal (w/o contingency and G&A) • Plus ~12 person-months of Fermilab labor for coil removal and prep work • CCM move should be done before anything is installed into NML • Building a tunnel extension at New Muon. • A conceptual design and cost estimate are being worked on at FESS. A preliminary estimate is ~$1 million for a 50 m extension (incl. cont + G&A) • No major modifications to the building structure are required • Tunnel can be built later; not needed until there are more than two ILC modules • Building the new refrigerator at New Muon • Being studied: whether the SSC refrigerator stored at ANL will be useful in whole or part. Expect a report in early June; a decision in August. • A detailed refrigerator specification is being developed P. Limon --- Accelerator Advisory Committee

18. New Muon & Vicinity P. Limon --- Accelerator Advisory Committee

19. New Muon Facing South P. Limon --- Accelerator Advisory Committee

20. New Muon Facing North P. Limon --- Accelerator Advisory Committee

21. HPTF @ New Muon P. Limon --- Accelerator Advisory Committee

22. HPTF @ New Muon P. Limon --- Accelerator Advisory Committee

23. Solution 1 - Temporary Dewars @ New Muon P. Limon --- Accelerator Advisory Committee

24. Solution 2 - Temporary Satellite @ New Muon P. Limon --- Accelerator Advisory Committee

25. CONCLUSIONS • We are on track for an early start of cryogenic and RF tests in the Meson Lab • We are on schedule to have Meson ready for equipment installation by June 13. The goal is to test a single-cavity module in early FY2006. • Need one week of beam off (Scheduled to start June 6) to install shielding in beamline tunnels. May need another week of beam off. • The Plan is feasible and satisfies all requirements • Single modules are tested at Meson Lab and are not delayed • There is no delay in the startup of operations at New Muon Lab. • There are good options for early temporary cryogenics • The cryogenics at Meson are adequate for all PD front end and single-modules tests • The modifications to New Muon are slight • The risks are understood • The major risk is not getting started aggressively P. Limon --- Accelerator Advisory Committee