Title :
Investigation of Possible Multipactor Discharge in a Klystron Input Cavity
Author :
Hill, C. ; Carter, R.G.
Author_Institution :
Dept. of Eng., Lancaster Univ.
Abstract :
A detailed experimental study has been made of suspected multipactor discharge in a klystron input cavity in the presence of an axial magnetic field. The existence of the discharge was detected by changes in the return loss at the input coupler. This method does not require any modification of the cavity. Discharges appeared to take place over a range of input powers from 5W up to 100W for two distinct ranges of the magnetic field. Tests with a hand-held permanent magnet suggested that the discharges are located around the equator of the cavity. Comparison with theory confirmed that the lower band is probably a single-surface crossed-field multipactor discharge. Investigation of the upper band is continuing
Keywords :
discharges (electric); klystrons; microwave switches; axial magnetic field; cavity equator; hand-held permanent magnet test; klystron input cavity; multipactor discharge; single-surface crossed-field discharge; Coils; Fault location; Klystrons; Magnetic field measurement; Magnetic fields; Magnetic properties; Magnetic resonance; Radio frequency; Resonant frequency; Testing;
Conference_Titel :
Vacuum Electronics Conference, 2006 held Jointly with 2006 IEEE International Vacuum Electron Sources., IEEE International
Conference_Location :
Monterey, CA
Print_ISBN :
1-4244-0108-9
DOI :
10.1109/IVELEC.2006.1666194
