FIZIKA A 5 (1996) 2, 99-105

ELECTRON SOURCE USING A HIGH-FREQUENCY CAVITY RESONATOR

IGOR GRAŠIČ, ALOJZ PAULIN, ANDREJ PREGELJ^a and BOJAN JENKO^b
University of Maribor, Faculty of Electrical Engineering and Computer Science, Smetanova 17, 62000 Maribor, Slovenia
^aInstitute for Electronic and Vacuum Technique, Teslova 30, 61111 Ljubljana, Slovenia
^bMinistry of Science and Technology, Slovenska 50, 61000 Ljubljana, Slovenia

Received 11 September 1995

A special cylindrical resonator with a coaxial screw and a small apperture above it, is supplied with RF energy. The strong electrical field appearing around the sharp tip on the screw causes pulsating electron emission. By extracting electrons from the emissive region with a system of suitable electrodes, a bunched electron beam can be obtained. This paper presents the design of such a resonator, gives some experimental results and discusses other possibilities regarding its construction.

UDC 539.07
PACS 35.80.+s

Copyright by The Croatian Physical Society
For problems or questions please contact fizika@fizika.hfd.hr