Theoretical Studies of SGEMP Field Generation
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.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1974
- Accession Number
- ADA026334
Entities
People
- Andrew Timothy Wilson
Organizations
- Utility Systems Science and Software (United States)