High Current Low Voltage Electron Bombarder for Excitation of a Molecular Beam

1 August 1970

journal article
Published by AIP Publishing in Review of Scientific Instruments

Vol. 41 (8) , 1213-1218
https://doi.org/10.1063/1.1684762

Abstract

An electron bombarder for producing intense beams of metastable atoms and molecules has been constructed and operated. The cathode is a 1×5 cm nickel matrix with a BaSrO coating. It has been found to resist poisoning by a variety of gases. The anode consists of 10 parallel channels, each 0.1 cm wide, 5 cm long, and 1 cm high. Anode currents of up to 380 mA at 20 V have been obtained. Beams of N2, helium, and argon have contained approximately 1011 metastables/sec.

Keywords

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