An Electron Gun Controller for a Small Electrostatic Electron Accelerator

dc.contributor.authorThomson, Stephen
dc.description.abstractThe Houghton College electrostatic electron accelerator uses a small Van de Graaff generator and an accelerator column made from alternating high-density polyethylene and aluminum rings to create a uniform electric field. The accelerator column is evacuated to about 10-6 torr by a rotary forepump and a diffusion pump. To produce the electrons, an electron gun made from a 3RP1 CRT is located inside the high voltage terminal. The electrodes of the electron gun require user-controlled voltages for the anode, focus and intensity grids. Since the gun is located inside the HV terminal, a microcontroller/amplifier circuit was designed to produce the required voltages and communicate with the user via a non-conducting, fiber optic RS232 link. The remote control system has been tested with the electron gun attached to the vacuum system.
dc.publisherHoughton College
dc.rightsAuthors retain the copyright for all content posted in this repository. This material may not be published, reproduced, broadcast, rewritten, or redistributed beyond the Houghton College community without permission except in accordance with fair use doctrine.
dc.subjectStudent Projects
dc.titleAn Electron Gun Controller for a Small Electrostatic Electron Accelerator
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