status of x-band program at radiabeam
DESCRIPTION
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. - PowerPoint PPT PresentationTRANSCRIPT
Status of X-band program at RadiaBeam
Luigi FaillaceRadiaBeam Technologies, LLC.
Santa Monica, CA
5th Collaboration Meeting on X-band Accelerator Structure Design and Test Program
• 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
ABOUT RADIABEAM
X-Band Traveling Wave DeflectorHigh Gradient S-Band Linac (DECA)Sincrotrone Trieste PhotoinjectorCompact Industrial Linacs
(MicroLinac, Blood Irradiator)2 NCRF Guns based on Free-FormFabrication (FFF)
5th Collaboration Meeting on X-band Accelerator Structure Design and Test Program
ONGOING PROJECTS
• 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)
5th Collaboration Meeting on X-band Accelerator Structure Design and Test Program
MICROLINAC
Magnetron2.5 μs, D.C.=10-3
Acceleratingstructure
• 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
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
MICROLINACElectric
Field (MV/m)
MagneticField (Gauss)
MICROLINAC
Beam capture 25 %
Beam energy, exit >1 MeV
Energy gain
Transverse size
Normalized transverseemittance
Blood Irradiator
• Industrial accelerator for blood irradiation, 2 MeV
• Pi/2 accelerating structure, 9.3 GHz
• 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
X-BAND DEFLECTING CAVITY
• 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
5th Collaboration Meeting on X-band Accelerator Structure Design and Test Program
RF TESTING/VALIDATION CAPABILITIES
Bead-pull measurements
Phas
e
• 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
• 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
5th Collaboration Meeting on X-band Accelerator Structure Design and Test Program
SOLID FREEFORM (SFF) FABRICATION
Enhanced engineering/manufacturing capabilities New Facility + recent expansion New Equipment
Studied and Developed RF manufacturing process workflowsIncreased RF testing/validation capabilitiesDeveloped 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
RESOURCES AND CAPABILITIES
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
CELL MACHINING AND CLEANING
• 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
CONCLUSIONS