HINS R&D Program Status for 11/15/2006 AD Accelerator Physics Department Meeting

1. HINS R&D Program Status for 11/15/2006 AD Accelerator Physics Department Meeting

2. HINS R&D Program Objectives To construct and test key components of the low-energy Linac concept and integrate into a demonstration accelerator in Meson Detector Building • Install and commission 2.5 MW, 325 MHz klystron system • Equip and operate a 325 MHz high power RF component test facility • Fabricate, install, and operate a test stand for 325 MHz RT cavities and a test cryostat for 325 MHz SC spoke cavities • Assemble ion source and RFQ providing a 2.5 MeV beam source • Assemble the 10 MeV RT Linac, operate with beam, and verify performance • Install 325 MHz SC spoke resonator cryomodules and operate with beam up to 90 MeV This all adds up to building a first-of-its-kind superconducting 90 MeV H- linac

3. Meson Building Floor Plan Cavity Test Cave RF Component Test Facility Klystron and Modulator Area 90 MeV Linac Ion Source and RFQ Area 200 ft.

4. Reminder of 2006 Goals and Schedule original dates from May ‘06(red May/August updates) green as of 11/1/06 • Short “mock” Linac cave section available • May 2006  (nothing yet modeled or installed) • Klystron modulator completion • July 2006 (late July) (late September) (late October) (begin modulator testing in November 2006, not ready for klystron before December) • 325 MHz RF power system commissioning • July 2006 (early August) (early October) (November) (mid-December) • 325 MHz component testing in RF test area • Starting August 2006 (delayed due to Modulator) (mid-December) • 325 MHz RT cavity power testing in cavity test cave • September 2006 (delayed due to Modulator) (mid-January 2007) • Superconducting cavity test cryostat installation • October 2006 (Spring ‘07) (Summer ‘07) (late summer 2007) • Ion Source installation in Meson • November 2006 (January ‘07) (CC2 shows no sign of going away!!)

5. Reminder of 2007 Goals and Schedule original dates from May ‘06(red May/August updates) green as of 11/1/06 • RFQ (now in procurement) delivery and power testing • January 2007 (~6 months from June 30, 2006 order date) (~6 months from Sept. 14, 2006 review date) (later than May 2007) • Production quantity RT cavity and coupler delivery & testing • Starting February 2007 (May 2007) • 2.5 MeV beam tests • Beginning February 2007 (April 2007) (June 2007?) (CC2 shows no sign of going away!!) • First SC spoke resonator power tests in test cryostat • April 2007 (Fall 2007 ? ) • Linac cave construction and utilities installation • May 2007 (October 2007) • Demonstration of multiple Room Temperature cavity RF distribution and independent amplitude & phase control • July 2007 (FY08) • Beam accelerated through first ‘N’ RT cavities • September 2007 (optimistic) (FY08)

6. Meson Schedule 2008original dates from May ‘06(red May/August updates) green as of 11/1/06 • Full 10 MeV RT linac installed • April 2008 (October 2008) • R&D beam operations at 10 MeV • Starting May 2008 (January 2009) • First SC spoke resonator cryomodule installation • October 2008 • Tests of RT + SC cavity RF distribution and independent amplitude & phase control • November 2008 • Beam through first SC spoke cryomodule • December 2008 (optimistic)

7. Meson Building Floor Plan Revised

8. Cavity Test Cave Layout

9. Meson Status November 15, 2006 • Klystron modulator in place as of this week!! • Power and water distribution for klystron, RF component test area and cavity test cave complete • Klystron cooling water connected and circulating • Pulse transformer and klystron cathode oil tanks filled • Waveguide installed to RF component test area • RF component test shielding cage 80% complete • Safety interlock boxes and chassis’ installed • Timing system and computers for controls are installed • Working with AD ES&H to define and write necessary safety documentation • 50 KeV proton ion source operating in MS-6

10. Accelerator Division Manpower Status • September AD Manpower utilized • Note that 44%, 6 FTE, went to modulator which is near completion • Many people are interested – weekly AD HINS meeting typically draws up to 15 people • ES&H interlocks group has been particularly responsive and productive • It is a problem that this program is essentially no one’s priority assignment • Lack of committed resources makes credible scheduling very difficult • Resources in particular demand are: • HL & LL RF Engineers • Radiation safety experts • Mechanical and electronic techs • October AD Manpower was 15.34 FTE • Note that 37%, 5.8 FTE, went to modulator, which is near completion

11. Near Term Goals • Commission modulator into dummy load • Replace questionable snubbers in output switch • Pulse klystron to verify RF operation and assure acceptable X-ray levels • Begin high power phase shifter and circulator testing in component test area • Power test and condition first Room Temperature accelerating cavity in test cave • Continue ion source testing in MS-6

12. Modulator Switch Cabinet

13. Modulator Switch Cabinet

14. Klystron and Waveguide

15. Modulator in Place

16. Modulator in Place

17. RF Component Test Area Cage

18. RF Component Test Cage

19. A 10 db 325MHz Waveguide Coupler

20. Electronics Installed Control system timing crate Klystron solenoid power supplies Klystron and modulator interlocks Personnel safety interlocks

21. Status of RT CH-01 Gennady Romanov

22. First RT CH Cavity in Production Body wall roughed in and annealed. Cavity in concept. End wall assemblies ready to be brazed. Copper spokes rough machined and annealed; waiting to be finished.

23. RT CH-01 after brazing at California Brazing The spokes, SS tubes and cooling tube have been brazed. The fixtures holding the cooling tube in place during brazing are still on the cavity. Arrived to HI-TECH Manufacturing

24. RT CH-01 after welding of SS flanges at HI-TECH A day before shipping to Fermilab

25. RT CH-01 in the RF lab in IB4 The end-walls are not completed – there are no flanges on the beam pipes. Coupler port is just covered with blank flange. The cold models of tuners are installed. Length 60 mm (nominal 40 mm) Diameter 20 mm

26. RF parameters of RT CH-01 before final welding of the end-walls (RF measurements are done by Timergali) F= 324.25 MHz at 20.5 C° and humidity of 46% without tuners and power coupler. Q = 9140 ( 9260 simulated) The higher modes are 436.12, 503.17 and 604.02 MHz Relative field amplitude in the centers of gaps: 0.463 0.984 1.0 0.471 Distance between centers of gaps in mm: 34.963 0.663 34.235 or -0.065 34.427 0.127 It looks like the spokes are spaced normally, but the end-walls are a little bit apart. deviation from nominal.

27. Tuning range of the tuners 40 mm nominal stroke • 1.2 MHz as predicted The tuners were moved together.

28. Conclusion • RF parameters meet design requirements. • Tuning range of the mechanical tuners is as expected. • The final welding of the end-walls can be done. • Additional visual inspection should be done before shipping the cavity back to HI-TECH • Cold measurements of complete cavity, Vacuum and high-power tests are next.

29. Dear Santa Claus We have been real good sometimes this year. Please bring us 325 MHz RF power for Christmas. The HINS Family