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

Journal Article · Tue Jul 01 00:00:00 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), Vol. 34:1
• Country of Publication: United States
• Language: English

Related Subjects

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