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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.
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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)
MICROLINAC Transverse size Energy gain 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
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