Complete Multipactor Suppression in Dielectric Loaded Accelerators Using a Solenoid Field

Award Information
Agency: Department of Energy
Branch: N/A
Contract: DE-FG02-12ER90282
Agency Tracking Number: 99296
Amount: $999,832.00
Phase: Phase II
Program: SBIR
Awards Year: 2013
Solicitation Year: 2013
Solicitation Topic Code: 29a
Solicitation Number: DE-FOA-0000782
Small Business Information
Euclid Techlabs, Llc
5900 Harper Rd., #102, Solon, OH, 44139-1866
DUNS: 141568639
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Chunguang Jing
 (440) 519-0410
Business Contact
 David Dunay
Title: Mr.
Phone: (440) 519-0410
Research Institution
Multipactor discharges in dielectric accelerating structures are a major limitation on the performance of this otherwise very promising technology for future high energy physics machines and other applications. We will experimentally study a new approach, using an external solenoid field to completely suppress multipactor. This approach has been theoretically studied and verified in a 3-D numerical simulation. Under Phase I of the project, we completed the EM modeling, engineering design, and the fabrication of DLA structures based on two different materials. The final structures were assembled and bench tested. One structure has been installed with a solenoid at the NRL X-band magnicon. The first high power rf experiments on multipactor suppression will be completed in early 2013. The work in Phase II of this project will be aimed at a series of high power tests of the DLA structures constructed under Phase I at the NRL 11.4 GHz magnicon facility. We plan to systematically perform power loss and multipactor light emission measurements for different materials as a function of the applied solenoid field. Analysis of the results will be directly compared against the theoretical model and numerical simulations. We will build a compact low energy dielectric accelerator prototype for industrial or medical applications. We will investigate the option of using a permanent magnet solenoid. Finally, an experiment to accelerate electrons in the prototype dielectric structure will be performed. Commercial Applications and Other Benefits: Eliminating multipactor effects in dielectric accelerators will allow higher power and higher efficiency operation of these machines. This will represent a great leap forward for the use of dielectric materials in particle accelerators and high power rf generation applications.

* information listed above is at the time of submission.

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