CFA design improvement program. Volume 1: Instrumented CFA studies

This report describes the technical objectives and summarizes the accomplishments during one phase of a program aimed at improving the design techniques for emitting sole, reentrant stream crossed-field amplifiers. The program efforts in this phase covered the period from July 1, 1975, to December 31, 1977. The program was sponsored by the U.S. Navy under Contract No. N00123-75-C-1294. The contract was issued by the Naval Regional Procurement Office, Long Beach, California. The technical direction of the program was initially from the Naval Electronics Laboratory Center and later from the Naval Ocean System Center, both of San Diego, California. The total program was divided essentially into two time-phased portions. This first portion consisted of a combined theoretical and experimental investigation aimed at improving understanding of the internal workings of these tubes. From this effort new design concepts have emerged that should lead to devices of improved performance. The second portion of the program to follow will consist of attempts to demonstrate the validity of the new concepts by incorporating these features into experimental vehicles for test and evaluation.