RESEARCH ON NOISE IN CROSSED-FIELD GUNS.
Abstract
The design of the noise transformer at the exit of the short Kino gun is briefly described. Some results of the simulation of the velocity jump configuration on the Litton Precision Resistance Network Analogue are discussed. Design of the high-power gun is briefly summarized. Noise figure calculations are described for two different tubes. The calculated noise figure values are higher than the experimental values although there is good qualitative agreement. The difference in the noise figure values for the two cases is correlated with the difference in the diocotron gain in the two guns. It is found that transverse velocity and space-charge fluctuations contribute significantly to the total noise figure. It is shown that for noise figure evaluation it is necessary to consider all the waves particularly when the gain is less than 30 db, as is usually the case in crossed-field amplifiers. The variation of noise figure with beam position is shown. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 20, 1964
- Accession Number
- AD0608594
Entities
People
- R. P. Wadhwa