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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

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

slide2

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

slide3

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

slide4

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

slide5

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

slide6

MICROLINAC

Electric

Field (MV/m)

Magnetic

Field (Gauss)

slide7

MICROLINAC

Transverse size

Energy gain

Normalized transverse

emittance

slide8

Blood Irradiator

  • Industrial accelerator for blood irradiation, 2 MeV
  • Pi/2 accelerating structure, 9.3 GHz
slide9

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

slide10

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

slide11

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

slide12

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

slide13

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

slide14

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

slide15

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

slide16

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

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