Accession Number:
AD0679411
Title:
A TWO-STAGE DOUBLE-HEMISPHERICAL ELECTRON ENERGY SELECTOR,
Descriptive Note:
Corporate Author:
NATIONAL RESEARCH COUNCIL OF CANADA OTTAWA (ONTARIO) DIV OF PURE CHEMISTRY
Personal Author(s):
Report Date:
1968-06-07
Pagination or Media Count:
14.0
Abstract:
The construction and performance of a two-stage electron energy selector of the double-hemispherical type are described. Energy half-widths of 0.06-0.12 V in the electron beam have been obtained with operating voltages of 10-30 V in the hemispherical stages. No magnetic shielding was employed. Resolved electron currents at a half-width of 0.07 V were obtained, in the form of a well-collimated beam which was passed axially through a cylindrical reaction chamber. Preliminary results without mass resolution on metastable-atom and positive-ion formation are reported, together with later results on formation of Ar and Kr using a quadrupole mass filter, in rare gases. Author
Descriptors:
Subject Categories:
- Atomic and Molecular Physics and Spectroscopy