Doubly differential cross sections of secondary electrons ejected from atomic hydrogen by electron impact

Journal Article · Sun Mar 01 04:00:00 EST 1992 · Physical Review A. General Physics; (United States)

DOI:https://doi.org/10.1103/PhysRevA.45.2951· OSTI ID:7205842

Shyn, T W ^[1]

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1. Space Physics Research Laboratory, The University of Michigan, Ann Arbor, Michigan 48109 (United States)

We have measured the doubly differential cross sections, in angle and energy, of secondary electrons ejected from atomic hydrogen by electron impact. The incident energies used were from 25 to 250 eV. The energy and angular range of secondary electrons measured were from 1.0 eV to one-half of the difference between the incident energy and the ionization potential of hydrogen atom and from 12{degree} to 156{degree}, respectively. Singly differential cross sections and total-ionization cross sections were obtained from the doubly differential cross sections. The present total-ionization cross sections were compared with previous measurements and theoretical results. Discrepancies have been found between the present results and those measurements and theoretical results.

• OSTI ID: 7205842
• Journal Information: Physical Review A. General Physics; (United States), Journal Name: Physical Review A. General Physics; (United States) Vol. 45:5; ISSN 1050-2947; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

664300* -- Atomic & Molecular Physics-- Collision Phenomena-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ANGULAR DISTRIBUTION
ATOM COLLISIONS
COLLISIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
DISTRIBUTION
ELECTRON COLLISIONS
ELECTRON-ATOM COLLISIONS
ELEMENTS
EMISSION
ENERGY SPECTRA
HYDROGEN
IONIZATION
NONMETALS
SECONDARY EMISSION
SPECTRA