Status of X-band program at RadiaBeam Luigi Faillace RadiaBeam Technologies, LLC. Santa Monica, CA 5th Collaboration Meeting on X-band Accelerator Structure Design and Test Program

ABOUT RADIABEAM RadiaBeam Technologies, LLC. is a small business with core expertise in accelerator physics. Spin-off from UCLA (2003) Extensive R&D Program (DOE, DOD, DHS, NSF) Growing products line for research laboratories and industrial customers (magnets, diagnostics, RF structures, complete systems) 5th Collaboration Meeting on X-band Accelerator Structure Design and Test Program

ONGOING PROJECTS X-Band Traveling Wave Deflector High Gradient S-Band Linac (DECA) Sincrotrone Trieste Photoinjector Compact Industrial Linacs (MicroLinac, Blood Irradiator) 2 NCRF Guns based on Free-Form Fabrication (FFF) 5th Collaboration Meeting on X-band Accelerator Structure Design and Test Program

MICROLINAC Tech transfer from SLAC Portable, air-cooled, ultra-low cost, 1 MeV (two structures operating in pi mode, 9.4 GHz) industrial accelerator for radiography applications (replacement for radioisotope sources) Accelerating structure Magnetron 2.5 μs, D.C.=10-3 5th Collaboration Meeting on X-band Accelerator Structure Design and Test Program

MICROLINAC Table-top prototype is under development Industrial system to be offered in 2011-2012 Higher energy version for self contained irradiators under development 5th Collaboration Meeting on X-band Accelerator Structure Design and Test Program

MICROLINAC Electric Field (MV/m) Magnetic Field (Gauss) Accelerating gradient 3 MV/m RF frequency 9.4 GHz Power dissipated/structure 25 kW Beam Current, input 50 mA Duty Cycle 0.001 Beam Energy, input 14 keV

Normalized transverse MICROLINAC Transverse size Energy gain Beam capture 25 % Beam energy, exit >1 MeV Normalized transverse emittance

Blood Irradiator Industrial accelerator for blood irradiation, 2 MeV Pi/2 accelerating structure, 9.3 GHz

X-BAND DEFLECTING CAVITY compact footprint, 11.424 GHz longitudinal resolution at 100 MeV better than 10 fs 5th Collaboration Meeting on X-band Accelerator Structure Design and Test Program

X-BAND DEFLECTING CAVITY Present Status: in fabrication Adapted cleaning and handling procedures from SLAC (developed for high gradient structures) 5th Collaboration Meeting on X-band Accelerator Structure Design and Test Program

X-BAND DEFLECTING CAVITY 8 cells + couplers prototype was assembled and tested Commissioning plans at BNL – Summer 2011 (bead pull measurements at RadiaBeam ) 5th Collaboration Meeting on X-band Accelerator Structure Design and Test Program

RF TESTING/VALIDATION CAPABILITIES Single Cell Testing Used for relative cell to cell analysis Cell Stack Utilized for resonant frequency verification Clamped structure Validates coupler quality utilized in bead pull / tuning setup under development for tuning Bead-pull measurements Phase 5th Collaboration Meeting on X-band Accelerator Structure Design and Test Program

SOLID FREEFORM (SFF) FABRICATION SFF is an additive manufacturing process where end-use, metal, parts are directly fabricated, layer by layer, from a digital model SFF produces fully-dense metal parts with features such as internal cooling channels SFF copper cathode cathode recently successfully tested at UCLA’s Pegasus photoinjector under high RF power Stable operation at 70 MV/m peak fields on cathode after 2 hours of conditioning QE measured (~2x10-5), and consistent with wrought OFE copper at given gradient 5th Collaboration Meeting on X-band Accelerator Structure Design and Test Program

RESOURCES AND CAPABILITIES Enhanced engineering/manufacturing capabilities New Facility + recent expansion New Equipment Studied and Developed RF manufacturing process workflows Increased RF testing/validation capabilities Developed custom UHV/RF component cleaning and assembly facilities Following SLAC developed guidelines Presents us with full control over almost all critical processes (no oven) Collaborations with Universities and National Laboratories 5th Collaboration Meeting on X-band Accelerator Structure Design and Test Program

CELL MACHINING AND CLEANING CNC mills and lathes Capable of 0.0002” precision and repeatability (lathe) 2-4 micron flatness 4-6 micro-inch surface finishes (100-150nm) Developed specialized workholding tooling Optimized cutting tooling (PCD) Refurbished or manufactured storage and travel containers Considerable man-hours invested into process and handling systematics Chemical cleaning room With guidance from SLAC MFD Utilize a modified version of SLAC cleaning processes Clean Assembly / Testing Room Class 100 / Class 1000 5th Collaboration Meeting on X-band Accelerator Structure Design and Test Program

First high gradient structure will be commissioned this year CONCLUSIONS RadiaBeam Technologies is actively developing X- band accelerating systems for commercial applications First high gradient structure will be commissioned this year 5th Collaboration Meeting on X-band Accelerator Structure Design and Test Program