The identification of emission lines from a van de Graaff beam
- 1 January 1965
- journal article
- Published by IOP Publishing in Proceedings of the Physical Society
- Vol. 85 (1) , 163-166
- https://doi.org/10.1088/0370-1328/85/1/323
Abstract
Nitrogen ions of velocity 1.6 × 108 cm sec-1 to 6.0 × 108 cm sec-1 passed through a carbon foil of thickness about 500 Å which served both to increase the degree of ionization and to leave the ions in excited states. It is shown that by measuring the relative intensities of the de-excitation emission lines as a function of ion velocity the degree of ionization of the emitting ions can be determined unambiguously, in confirmation of the suggestion made by Kay in 1963. Measurements of line intensities as a function of distance from the exciting foil yield directly the mean lives of excited states in singly and doubly ionized nitrogen. The techniques should be capable of extension to very high degrees of ionization.Keywords
This publication has 2 references indexed in Scilit:
- Laboratory Excitation of the Emission Spectrum of a Nova.The Astrophysical Journal, 1964
- A Van De Graaff Beam As A Source Of Atomic Emission SpectraPhysics Letters, 1963