K shell ionizations of carbon, nitrogen, oxygen, fluorine and neon by proton and alpha particle bombardments

Naoto Kobayashi, Nobuhiro Maeda, Hiroshi Hori, Masakatsu Sakisaka

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The K Auger electron spectra have been measured for carbon, nitrogen, oxygen, fluorine and neon excited by protons and alpha particles of 0.5-2.6 MeV. In comparison with the spectra obtained by electron impact, the satellite lines have grown more intensively as projectiles become heavier. This indicates the presence of a contribution of simultaneous L shell ionization. A quantitative analysis has been made for the created L vacancies of nitrogen due to N+p and N+α collisions. The ionization cross sections derived from the Auger yields have been compared with the theories of Born approximation and binary encounter approximation. The deviations from the theories found in O+α, F+α and Ne+α collisions might be explained by a shielding action of L shell electrons against nuclear charge of projectiles.

Original languageEnglish
Pages (from-to)1421-1429
Number of pages9
JournalJournal of the Physical Society of Japan
Volume40
Issue number5
Publication statusPublished - 1976 May
Externally publishedYes

Fingerprint

neon
alpha particles
fluorine
bombardment
projectiles
nitrogen
ionization
collisions
protons
carbon
ionization cross sections
oxygen
Born approximation
encounters
quantitative analysis
electron impact
shielding
electrons
deviation
approximation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

K shell ionizations of carbon, nitrogen, oxygen, fluorine and neon by proton and alpha particle bombardments. / Kobayashi, Naoto; Maeda, Nobuhiro; Hori, Hiroshi; Sakisaka, Masakatsu.

In: Journal of the Physical Society of Japan, Vol. 40, No. 5, 05.1976, p. 1421-1429.

Research output: Contribution to journalArticle

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