Accession Number : AD0286326

Title :   CYCLOTRON RESONANCE INTERACTION AT MILLIMETER WAVELENGTHS

Corporate Author : STANFORD UNIV CALIF MICROWAVE LAB

Personal Author(s) : CHOW,K.K.

Report Date : AUG 1962

Pagination or Media Count : 46

Abstract : Cyclotron resonance interaction between a electron beam and a circuit wave to produce backward wave oscillation in an unloaded waveguide in the S-band was investigated, and the development of a prototype oscillator tube to work in the 6-4.5 mm range was also completed. This prototype tube was so constructed that it could be placed in a narrow air gap of an iron-core electr magnet which provided the necessary field for electron cyclotron motion. However, it did not have the desired performance. Modifications made on the prototype tube and tube performance after modification are described. A different design is also reported. The main difficulty encountered in improving tube performance was the inability to control electron injection properly. Even at the conclusion o the experimental work described here, the control was not entirely satisfactory, though net electronic gain from the tube was obtainable. A secondary difficulty was the lack of space in which to place the tube components; however, this was later solved. (Author)

Descriptors :   *BACKWARD WAVE OSCILLATORS, *CYCLOTRONS, *EXTREMELY HIGH FREQUENCY, *MAGNETIC FIELDS, *RESONANCE, MICROWAVES

Distribution Statement : APPROVED FOR PUBLIC RELEASE