Novel Coating for Suppression of Multipactor in High Power Microwave Devices - SBIR Phase II Final Report
- Nokomis, Inc.
Multipactor is an incessant problem that plagues numerous commercial and military systems, including satellites and particle accelerator components such as klystrons and free electron lasers (FELs). Metallic surfaces within High Power Microwave (HPM) devices are susceptible multipactor due to the high Secondary Electron Emission Coefficient (SEEC) of internal surfaces. Current solutions, including traditional coatings such as Titanium Nitride (TiN) or use of magnetic systems to suppress SEE, are insufficient to support HPM operations at high frequencies (1 – 40GHz) and high operating powers. Nokomis has developed a Emission Suppression Coating (ESC) that increased multipactor onset thresholds significantly, without affecting the performance of Radio Frequency (RF) devices. Under this Phase II effort, Nokomis improved upon the deposition methodology to accommodate restricted and complex HPM device geometries, demonstrated post-processing techniques to increase coating performance, and surface preservation and packing technology that both enhanced coating performance and maintained these enhancements during transport. Nokomis then demonstrated the multipactor mitigation properties of this coating in a real HPM coax environment. The results of this effort will address performance limiting problems currently experienced in equipment used for multiple fields, including communications, manufacturing, radar, medical diagnostics and radiotherapy.
- Research Organization:
- Nokomis, Inc.
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- DOE Contract Number:
- SC0013878
- OSTI ID:
- 1479641
- Type / Phase:
- SBIR (Phase II)
- Report Number(s):
- DE-SC0013878
- Country of Publication:
- United States
- Language:
- English
Similar Records
Experimental Study of Multipactor Suppression in a Dielectric-Loaded Accelerating Structure
Experimental study of multipactor suppression in a dielectric-loaded accelerating structure.