Experimental Measurements of a High-Energy Pseudospark-Produced Electron Beam

Abstract

This paper presents the progress thus far in the investigation of pseudospark-produced electron beams for medical applications. A twenty-six-gap pseudospark device is fabricated with different insulators and tested as the electron beam source. The discharge capacitor between the anode and cathode to store electrical energy is incorporated into the stacked ring design to minimize inductance. The system is operated at 100kV. Two Rogowski coils are positioned in the hole of anode flange and external capacitors to measure the total beam and discharge currents. Further, a small Langmuir probe and a Faraday cup are used to determine the energy of the beam through the comparison of the time that the e-beam passes them. Results of the scaling study for the electron beam current with breakdown voltage, gas pressure, external capacitance, and the effect of insulator material on pseudospark operating characteristics are presented.

Meeting Name

51st Annual Meeting of the APS Division of Plasma Physics

Department(s)

Mechanical and Aerospace Engineering

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2009 American Physical Society (APS), All rights reserved.

Publication Date

01 Jan 2009

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