NDLI: Photoionization from excited states of helium

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Photoionization from excited states of helium

Content Provider	NASA Technical Reports Server (NTRS)
Author	Jacobs, V. L.
Copyright Year	1973
Description	The cross sections for photoionization from the 2 1S, 2 3S, 2 1P and 2 3P excited states of helium are calculated for photoelectron energies below the n = 2 threshold of He(+) using Hylleraas bound state wave functions and 1s-2s-2p close coupling final state wave functions. The resonant structures associated with the lowest-lying 1S, 1P, 3P, and 1D autoionizing states of helium are found to be characterized by large values of the line profile parameter q. The cross sections and the photoelectron angular distribution asymmetry parameters for the P-states are calculated for various polarization states of the target atom and the incident photon. Experiments which would lead to the separate determinations of the S- and D- wave partial photoionization cross sections are discussed.
File Size	587173
Page Count	36
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19740002003
Archival Resource Key	ark:/13960/t7rn7xk30
Language	English
Publisher Date	1973-11-01
Access Restriction	Open
Subject Keyword	Chemistry Photoionization Theoretical Physics Metastable State Atomic Excitations Wave Functions Helium Ionization Cross Sections Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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