Relativistic calculation of atomic N-italic-shell ionization by protons

Journal Article · Tue Jul 01 04:00:00 EDT 1986 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.34.87· OSTI ID:5413362

Chen, M H; Crasemann, B

Relativistic plane-wave Born-approximation calculations of cross sections for N-italic-shell ionization of /sub 83/Bi and /sub 92/U by protons with incident energies from 0.02 to 5 MeV are reported. The calculations were carried out by using Dirac-Hartree-Slater wave functions. Binding-energy change and Coulomb deflection were taken into account. The relativistic cross sections are compared with values from nonrelativistic Hartree-Slater wave functions to study the effects of relativity. A test calculation with hydrogenic wave functions yields very different results. The only available measurements (for /sub 74/W), revised with a corrected 4d-italic fluorescence yield, agree with present theoretical predictions for E-italic/sub 1/< or =0.1 MeV but fall below theory by a factor of 6 above E-italic/sub 1/ = 0.4 MeV. This glaring discrepancy invites further investigation.

• Research Organization: Lawrence Livermore National Laboratory, University of California, Livermore, California 94550
• OSTI ID: 5413362
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 34:1; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular &amp; Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ACTINIDES
ATOM COLLISIONS
BINDING ENERGY
BISMUTH
BORN APPROXIMATION
CATIONS
CHARGED PARTICLES
COLLISIONS
CORRECTIONS
CROSS SECTIONS
ELECTRONIC STRUCTURE
ELEMENTS
ENERGY
ENERGY RANGE
FORM FACTORS
FUNCTIONS
HYDROGEN IONS
HYDROGEN IONS 1 PLUS
INNER-SHELL IONIZATION
ION COLLISIONS
ION-ATOM COLLISIONS
IONIZATION
IONS
KEV RANGE
KEV RANGE 10-100
KEV RANGE 100-1000
METALS
MEV RANGE
MEV RANGE 01-10
N SHELL
PARTICLE PROPERTIES
RELATIVISTIC RANGE
URANIUM
WAVE FUNCTIONS