Accession Number:

AD0601154

Title:

INVESTIGATION OF LINEAR BEAM AND NEW CONCEPTS OF MICROWAVE POWER GENERATION.

Descriptive Note:

Corporate Author:

CORNELL UNIV ITHACA N Y SCHOOL OF ELECTRICAL ENGINEERING

Personal Author(s):

Report Date:

1964-05-01

Pagination or Media Count:

78.0

Abstract:

In the fundamental studies of electron beams, the propagation of a 3000-Mcs space-charge wave was investigated along a periodically-varying electron beam, the d-c behavior of which is accurately known. Measured gain rates are in good agreement with those predicted by the theory of scalloped-beam amplification. In the beam-circuit interaction area, progress was made on computations of the effects of distributed interaction circuits and biased gaps on the efficiency of two-cavity klystrons. The nanosecond pulse study is concerned with the response of microwave amplifiers to short pulses of the order of a few r-f cycles long. Study was concentrated on the consequences of limited bandwidth and nonlinear interaction effects on the pulse response. In the beam-plasma area, the strong interaction between an electron beam and a plasma is being studied. In the laser-induced emission area, two different gun and drift-tube structures have been designed and are nearly assembled for investigation of electron-beam formation using laser-induced electron emission. One of these structures is designed for the direct-emission gun, while the other is suited for the indirect-emission gun. Author

Descriptors:

• (*ELECTRON BEAMS
• ELECTROMAGNETIC RADIATION)
• (*KLYSTRONS
• ELECTRON BEAMS)
• (*MICROWAVE AMPLIFIERS
• ELECTROMAGNETIC PULSES)
• (*PLASMAS(PHYSICS)
• ELECTRON BEAMS)
• (*LASERS
• ELECTRON BEAMS)
• MICROWAVE EQUIPMENT
• GENERATORS
• MICROWAVES
• PROPAGATION
• SPACE CHARGE
• ELECTRON TUBES
• CIRCUITS
• ELECTRON GUNS

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE