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K-shell x-ray production cross sections of selected elements Al to Ni for 4. 0 to 38. 0 MeV /sup 10/B ions. [Cross sections, 4. 0 to 38 MeV, binding energy, electron capture decay, PWBA, energy shifts, multiple ionization]

Conference ·
OSTI ID:7112407
; ; ; ; ;
K-Shell x-ray production cross sections for the target elements Sc, Ti, V, Mn, Fe, Co, and Ni were measured for incident /sup 10/B ions over the energy range 4.0 to 38.0 MeV. The cross section data were compared to the theoretical predictions of the binary encounter approximation (BEA); the plane wave born approximation (PWBA); and the PWBA modified to include corrections for increased binding energy (B), Coulomb deflection of the incident ion (C), orbital perturbation due to polarization (P), and relativistic effects (R). In addition, fluorescence yield variations (W/sub K/) and contributions to the cross sections from electron capture (EC) were included. It was found that the predictions of the fully modified PWBA with contributions from electron capture and fluorescence yield variations included provided the best fit to the experimental data over the entire energy range for each target element. The K..beta../K..cap alpha.. x-ray intensity ratios were compared to theoretical values that assume single hole ionization, and the x-ray energy shifts presented as a function of the energy of the incident ion. These two measurements provided confirmation of the occurrence of multiple ionization for /sup 10/B bombardment of target elements in the range 21 less than or equal to Z/sub 2/ less than or equal to 28.
Research Organization:
North Texas State Univ., Denton (USA)
DOE Contract Number:
W-7405-ENG-26
OSTI ID:
7112407
Report Number(s):
CONF-761059-19
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
ATOMIC IONS
BINDING ENERGY
BORN APPROXIMATION
BORON IONS
CAPTURE
CHARGED PARTICLES
COBALT
COLLISIONS
CORRECTIONS
COULOMB FIELD
CROSS SECTIONS
ELECTRIC FIELDS
ELECTRON CAPTURE
ELEMENTS
ENERGY
ENERGY RANGE
FLUORESCENCE
ION COLLISIONS
IONIZATION
IONS
IRON
LUMINESCENCE
MANGANESE
METALS
MEV RANGE
MEV RANGE 01-10
MEV RANGE 10-100
NICKEL
POLARIZATION
RELATIVISTIC RANGE
SCANDIUM
SPECTRA
SPECTRAL SHIFT
TITANIUM
TRANSITION ELEMENTS
VANADIUM
X-RAY SPECTRA