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Construction of energy loss function for low-energy electrons in helium

Journal Article:

Abstract

The energy loss function for electrons in the energy range from 50 eV to 1 keV in helium gas has been constructed by considering separately the energy loss in overcoming the ionization threshold, the loss manifested as kinetic energy of secondary electrons and the loss in the discrete state excitations. This has been done by utilizing recent measurements of Opal et al. on the energy spectrum of secondary electrons and incorporating the experimental data on cross sections for twenty-four excited states. The present results of the energy loss function are in good agreement with the Bethe formula for energies above 500 eV. For lower energies, where the Bethe formula is not applicable, the present results should be particularly useful.
Authors:
Dayashankar, [1] 
  1. Bhabha Atomic Research Centre, Bombay (India). Div. of Radiation Protection
Publication Date:
Feb 01, 1976
Product Type:
Journal Article
Reference Number:
AIX-08-331256; EDB-78-012809
Resource Relation:
Journal Name: Physica, B, C; (Netherlands); Journal Volume: 81:2
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ELECTRONS; ENERGY LOSSES; HELIUM; CHARGED-PARTICLE TRANSPORT; CROSS SECTIONS; ENERGY SPECTRA; EV RANGE 10-100; EV RANGE 100-1000; EXCITATION; EXCITED STATES; IONIZATION; IONIZATION POTENTIAL; KINETIC ENERGY; SECONDARY EMISSION; CRYOGENIC FLUIDS; ELEMENTARY PARTICLES; ELEMENTS; EMISSION; ENERGY; ENERGY LEVELS; ENERGY RANGE; ENERGY-LEVEL TRANSITIONS; EV RANGE; FERMIONS; FLUIDS; LEPTONS; NONMETALS; RADIATION TRANSPORT; RARE GASES; SPECTRA; 654001* - Radiation & Shielding Physics- Radiation Physics, Shielding Calculations & Experiments
OSTI ID:
7290144
Country of Origin:
Netherlands
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: PHBCD
Submitting Site:
INIS
Size:
Pages: 409-414
Announcement Date:

Journal Article:

Citation Formats

Dayashankar,. Construction of energy loss function for low-energy electrons in helium. Netherlands: N. p., 1976. Web.
Dayashankar,. Construction of energy loss function for low-energy electrons in helium. Netherlands.
Dayashankar,. 1976. "Construction of energy loss function for low-energy electrons in helium." Netherlands.
@misc{etde_7290144,
title = {Construction of energy loss function for low-energy electrons in helium}
author = {Dayashankar,}
abstractNote = {The energy loss function for electrons in the energy range from 50 eV to 1 keV in helium gas has been constructed by considering separately the energy loss in overcoming the ionization threshold, the loss manifested as kinetic energy of secondary electrons and the loss in the discrete state excitations. This has been done by utilizing recent measurements of Opal et al. on the energy spectrum of secondary electrons and incorporating the experimental data on cross sections for twenty-four excited states. The present results of the energy loss function are in good agreement with the Bethe formula for energies above 500 eV. For lower energies, where the Bethe formula is not applicable, the present results should be particularly useful.}
journal = {Physica, B, C; (Netherlands)}
volume = {81:2}
journal type = {AC}
place = {Netherlands}
year = {1976}
month = {Feb}
}