Reduction of the Multipactor Threshold Due to Electron Cyclotron Resonance

• Single-surface multipactor on metal surfaces is studied in the case when the microwave electric field is superimposed on a dc electric and a permanent magnetic field. Based on a simple analysis of the electron motion, it is predicted that considerable reduction in the multipactor threshold is possible when the electron cyclotron frequency is equal to the microwave field frequency and the permanent magnetic field has the proper orientation with respect to the metal surface. The prediction is confirmed by numerical simulations, and some experimental indications of the reduced multipactor threshold are also presented.

Ämnesord

NATURVETENSKAP  -- Fysik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences (hsv//eng)

Nyckelord

microwave

crossed fields

discharge

Accelerator RF Systems

magnetic fields

modes

electric breakdown

avalanche breakdown

external magnetic-field

Publikations- och innehållstyp

art (ämneskategori)

ref (ämneskategori)