Accession Number:

ADA026334

Title:

Theoretical Studies of SGEMP Field Generation.

Descriptive Note:

Final rept. Nov 73-Nov 74,

Corporate Author:

SYSTEMS SCIENCE AND SOFTWARE LA JOLLA CALIF

Personal Author(s):

Report Date:

1974-12-01

Pagination or Media Count:

129.0

Abstract:

Analytic models of the generation of IEMP in cavities at pressures below 1 torr and external to conducting objects in free space are developed. A series of computer codes devised to extend the analytic approach to more complex situations is presented. Four areas of research are identified 1 the effect of small conducting or dielectric objects on the potential distribution in a cavity in which space charge exists 2 the development of an analytic method to treat space-charge dynamics before the onset of space-charge-limiting of a nonmonoenergetic current beam 3 the formation and time-dependent behavior of a plasma sheath outside a planar, cylindrical or spherical conductor 4 the conditions for pinching to occur in a finite cavity. Numerical examples of each of the four topics are presented. Finally, the dynamics of a heavily space-charge-limited current in the SPI beam injection facility is examined with the electrostatic particle code.

Subject Categories:

  • Plasma Physics and Magnetohydrodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE