Analysis of Active Space Experiments Using Artificial Relativistic Electron Beams

Details Analysis of Active Space Experiments Using Artificial Relativistic Electron Beams Analysis of Active Space Experiments Using Artificial Relativistic Electron Beams

Nov 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998sct..conf..139k&link_type=abstract

Proceedings of the 6th Spacecraft Charging Conference. November 2-6, 1998. AFRL Science Center, Hanscom AFB, MA, USA., p.139-142

Computer Science

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Scientific paper

An overview of several issues associated with the injection of relativistic electron beams from a satellite in Low Earth Orbit (LEO) or from a suborbital sounding rocket is presented. In particular, a model which has been developed to compute the relativistic Beam-Atmosphere Interactions (BAI) associated with the injection of relativistic electron beams (REB's) from a spacecraft has been used to characterize the dynamics of zenith-directed REB's and bremsstrahlung from nadir-directed REB's propagating in a model terrestrial upper atmosphere. It was found that choice of injection altitude of an upward propagating 5 MeV REB influences atmospheric escape energy moderately and divergence severely, consistant with the dominance of small-angle scattering in the electron BAI. The model was also used to compute downward propagating REB-induced bremsstrahlung fluxes incident on detectors on board a satellite in LEO and on a balloon, showing that the latter receives a larger bremsstrahlung dose by several orders of magnitude if the detector is oriented directly at the base of the REB propagation path.

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