Relativistic calculation of atomic N-shell ionization by protons
Technical Report
·
OSTI ID:6925448
Relativistic plane-wave Born-approximation calculations of cross sections for N-shell ionization of Bi and 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 W 74), revised with a corrected 4 d fluorescence yield, agree with present theoretical predictions for E/sub 0/ < or = 0.1 MeV, but fall below theory by a factor of 6 above E/sub 0/ = 0.4 MeV. This glaring discrepancy invites further investigation.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA)
- OSTI ID:
- 6925448
- Report Number(s):
- AD-A-174846/6/XAB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ACTINIDES
BARYON REACTIONS
BISMUTH
BORN APPROXIMATION
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
ELECTRONIC STRUCTURE
ELEMENTS
ENERGY RANGE
FUNCTIONS
HADRON REACTIONS
IONIZATION
KEV RANGE
KEV RANGE 10-100
KEV RANGE 100-1000
METALS
MEV RANGE
MEV RANGE 01-10
N SHELL
NUCLEAR REACTIONS
NUCLEON REACTIONS
PROTON REACTIONS
URANIUM
WAVE FUNCTIONS
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ACTINIDES
BARYON REACTIONS
BISMUTH
BORN APPROXIMATION
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
ELECTRONIC STRUCTURE
ELEMENTS
ENERGY RANGE
FUNCTIONS
HADRON REACTIONS
IONIZATION
KEV RANGE
KEV RANGE 10-100
KEV RANGE 100-1000
METALS
MEV RANGE
MEV RANGE 01-10
N SHELL
NUCLEAR REACTIONS
NUCLEON REACTIONS
PROTON REACTIONS
URANIUM
WAVE FUNCTIONS