Accession Number : AD0747527

Title :   Preliminary Investigation of Collisional De-Excitation Rates for the 3D-3P Transition in Helium I, and 2F-2D Transition in Helium II.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF

Personal Author(s) : Harris,William Douglas

Report Date : JUN 1972

Pagination or Media Count : 25

Abstract : Helium gas was excited by 1.15 Mev protons from a Van de Graaff generator. Intensity of the radiation spectrum versus pressure data were recorded and plotted for the doublet F-doublet D transition in He II (4686 A). Through use of theoretical equations and experimental data, the collisional de-excitation rate coefficient, K, was determined. A suggested experimental procedure is discussed for continuation of this investigation using electron excitation. (Author)

Descriptors :   (*HELIUM, *ELECTRON TRANSITIONS), RELAXATION TIME, MATHEMATICAL ANALYSIS, EXCITATION, ATOMS, NITROGEN, INTERACTIONS, ATOMIC ENERGY LEVELS, THESES

Subject Categories : Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE