Accession Number : AD0801535

Title :   HALF MILLIMETER 'BACKWARD WAVE OSCILLATOR'.

Descriptive Note : Summary rept. 1 Oct 65-30 Jun 66 on Phase 2,

Corporate Author : CENTRE DE PHYSIQUE ELECTRONIQUE ET CORPUSCULAIRE ORSAY (FRANCE)

Personal Author(s) : Ta, Yeou

Report Date : 30 JUN 1966

Pagination or Media Count : 45

Abstract : The final objective of this work is to construct a half-millimeter Backward Wave Oscillator, with a power level in the range of half-a-watt. In this second step, a new tube assembly has been completed and two models of a new gun construction have been made. Electron trajectories of a gun to deliver a beam of 0.07 mm in diameter have been plotted in electrolytic tank measurements and some hot tests have indicated that a useful electron beam of ten to thirteen milliamperes in the ten kilovolts range can be now reproduced. A new type of reserve cathode has been tested at an increased C.W. load density of sixty amperes per square centimeter over a period of two hundred hours. Experimental tubes tests have been started. (Author)

Descriptors :   (*BACKWARD WAVE OSCILLATORS, MILLIMETER WAVES), COPPER, MICROSTRUCTURE, HEAT TREATMENT, ELECTRON GUNS, CATHODES(ELECTRON TUBES), MACHINING, SINGLE CRYSTALS.

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE