Abstract
A cylindrical electrostatic electron selector is described which provides a 10−7 ampere beam of electrons whose energy may be varied from 0 to 50 ev and whose energy spread is less than 100 mv. Space-charge problems involved in the construction of the device were overcome by the use of grids for focusing electrodes with exterior electron traps, and a non-reflecting surface for electrons made from a network of tiny tubes. The selector is provided with an energy analyzer. When used to determine the appearance potential curve of argon, the selector resolved the 2P3/2 and 2P1/2 states separated by 0.18 ev, and indicated the formation of [Formula: see text] at an energy of 0.8 ev below the threshold for A+.
References
7
Referenced
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Dates
Type | When |
---|---|
Created | 14 years, 3 months ago (April 24, 2011, 3:31 a.m.) |
Deposited | 1 month, 2 weeks ago (July 2, 2025, 10:16 a.m.) |
Indexed | 1 month, 2 weeks ago (July 3, 2025, 12:07 a.m.) |
Issued | 65 years, 2 months ago (June 1, 1960) |
Published | 65 years, 2 months ago (June 1, 1960) |
Published Print | 65 years, 2 months ago (June 1, 1960) |
@article{Marmet_1960, title={AN IMPROVED ELECTROSTATIC ELECTRON SELECTOR}, volume={38}, ISSN={1208-6045}, url={http://dx.doi.org/10.1139/p60-084}, DOI={10.1139/p60-084}, number={6}, journal={Canadian Journal of Physics}, publisher={Canadian Science Publishing}, author={Marmet, Paul and Kerwin, Larkin}, year={1960}, month=jun, pages={787–796} }