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 language | English |
|---|---|
| Pages (from-to) | 1421-1429 |
| Number of pages | 9 |
| Journal | Journal of the Physical Society of Japan |
| Volume | 40 |
| Issue number | 5 |
| Publication status | Published - 1976 May |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
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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 journal › Article
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TY - JOUR
T1 - K shell ionizations of carbon, nitrogen, oxygen, fluorine and neon by proton and alpha particle bombardments
AU - Kobayashi, Naoto
AU - Maeda, Nobuhiro
AU - Hori, Hiroshi
AU - Sakisaka, Masakatsu
PY - 1976/5
Y1 - 1976/5
N2 - 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.
AB - 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.
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UR - http://www.scopus.com/inward/citedby.url?scp=5344238525&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:5344238525
VL - 40
SP - 1421
EP - 1429
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - 5
ER -