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Final Report: Theory of Factors Limiting High Gradient Operation of Warm Accelerating Structures.

DE141145186

Publication Date	2014
Personal Author	Nusinovich, G. S.
Page Count	11
Abstract	This final report summarizes the research performed during the time period from 8/1/2010 to 7/31/2013. In general, our work was going on in two directions: - analysis of factors limiting operation of dielectric-loaded accelerating (DLA) structures where the main problem is the occurrence of multipactor on dielectric surfaces, and - studies of effects causing the RF breakdown in metallic accelerating structures. Correspondingly, our report below consists of two parts. The studies of dielectric-loaded accelerating (DLA) structures were focused on the development of self-consistent, non-stationary codes describing the occurrence, growth and saturation of multipactor. To the best of our knowledge, in practically all theoretical studies of multipactor the electric DC field was considered as a parameter, while in DLA structures this field is produced by the cloud of secondary electrons located in the vicinity of stmcture walls.
Keywords	Dielectric materials Acceleration Electric fields Electrons Gradients Growth Manipulators Occurrence Saturation
Source Agency	Technical Information Center Oak Ridge Tennessee
NTIS Subject Category	46 - Physics
Corporate Authors	Maryland Univ., College Park. Inst. for Research in Electronics and Applied Physics.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	201502
Contract Number	DE-FG0207ER41489

Final Report: Theory of Factors Limiting High Gradient Operation of Warm Accelerating Structures.

Final Report: Theory of Factors Limiting High Gradient Operation of Warm Accelerating Structures.
DE141145186

Publication Date	2014
Personal Author	Nusinovich, G. S.
Page Count	11
Abstract	This final report summarizes the research performed during the time period from 8/1/2010 to 7/31/2013. In general, our work was going on in two directions: - analysis of factors limiting operation of dielectric-loaded accelerating (DLA) structures where the main problem is the occurrence of multipactor on dielectric surfaces, and - studies of effects causing the RF breakdown in metallic accelerating structures. Correspondingly, our report below consists of two parts. The studies of dielectric-loaded accelerating (DLA) structures were focused on the development of self-consistent, non-stationary codes describing the occurrence, growth and saturation of multipactor. To the best of our knowledge, in practically all theoretical studies of multipactor the electric DC field was considered as a parameter, while in DLA structures this field is produced by the cloud of secondary electrons located in the vicinity of stmcture walls.
Keywords	Dielectric materials Acceleration Electric fields Electrons Gradients Growth Manipulators Occurrence Saturation
Source Agency	Technical Information Center Oak Ridge Tennessee
NTIS Subject Category	46 - Physics
Corporate Authors	Maryland Univ., College Park. Inst. for Research in Electronics and Applied Physics.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	201502
Contract Number	DE-FG0207ER41489