Transmission Current Monitor for High Energy Electron Beams
- 1 October 1961
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 32 (10), 1098-1100
- https://doi.org/10.1063/1.1717172
Abstract
A current monitor suitable for use with continuous or pulsed high energy electron beams is described. It functions by collecting slow secondary electrons emitted on passage of high energy electrons through a thin foil in vacuum. The secondary current is a linear function of primary current at average primary currents up to at least 120 μa (peak current density −150 ma/cm2), and is independent of energy at least in the range 6–30 Mev. With design modifications, the device should be capable of monitoring current at energies as low as 1 Mev with negligible beam absorption.Keywords
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