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L- and M-shell ionization cross sections for 3 -- 40-MeV-proton bombardments

Journal Article · · Phys. Rev., A; (United States)
; ; ; ; ; ; ;
Total L x-ray production cross sections of Y and Sn and M x-ray production cross sections of Au and Bi for proton impact have been measured over the projectile-energy range 3.0 -- 40 MeV and the ionization cross sections obtained for these shells are compared with calculations of the plane-wave Born approximation and the binary encounter approximation. The inner-shell ionizations by close and distant collisions are theoretically discussed in terms of the generalized oscillator strength and the contributions from these two kinds of collisions are separately estimated in the framework of the plane-wave Born approximation. Distant collisions in this energy region are not so effective as in the case of K-shell ionization, while at a very high energy the two kinds of collisions contribute nearly equally to the ionization. The experimental results show good agreement with the plane-wave Born approximation calculation except for the M-shell ionization of Bi.
Research Organization:
Cyclotron and Radioisotope Center, Tohoku University, Sendai 980, Japan
OSTI ID:
7053871
Journal Information:
Phys. Rev., A; (United States), Journal Name: Phys. Rev., A; (United States) Vol. 22:6; ISSN PLRAA
Country of Publication:
United States
Language:
English

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Projectile charge state dependence of M-shell ionization of Au, Pb, Bi and U by 1. 42-MeV/amu fluorine ions
Conference · Tue Mar 31 23:00:00 EST 1981 · IEEE Trans. Nucl. Sci.; (United States) · OSTI ID:5462208
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Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ALKALINE EARTH METALS
ATOM COLLISIONS
BISMUTH
CALCULATION METHODS
CATIONS
CHARGED PARTICLES
COLLISIONS
CORRELATIONS
CROSS SECTIONS
ELECTRONIC STRUCTURE
ELEMENTS
ENERGY RANGE
GOLD
HYDROGEN IONS
HYDROGEN IONS 1 PLUS
INNER-SHELL IONIZATION
ION COLLISIONS
ION-ATOM COLLISIONS
IONIZATION
IONS
L SHELL
M SHELL
METALS
MEV RANGE
MEV RANGE 01-10
MEV RANGE 10-100
SPECTRA
STRONTIUM
TRANSITION ELEMENTS
X-RAY SPECTRA
YTTRIUM