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]
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; TRN: 77-011047
- Resource Relation:
- Conference: 4. annual conference on the use of small accelerators, Denton, TX, USA, 25 Oct 1976
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
BORON IONS
COLLISIONS
COBALT
ION COLLISIONS
IRON
MANGANESE
NICKEL
SCANDIUM
TITANIUM
VANADIUM
BINDING ENERGY
BORN APPROXIMATION
CORRECTIONS
COULOMB FIELD
CROSS SECTIONS
ELECTRON CAPTURE
FLUORESCENCE
IONIZATION
MEV RANGE 01-10
MEV RANGE 10-100
POLARIZATION
RELATIVISTIC RANGE
SPECTRAL SHIFT
X-RAY SPECTRA
ATOMIC IONS
CAPTURE
CHARGED PARTICLES
ELECTRIC FIELDS
ELEMENTS
ENERGY
ENERGY RANGE
IONS
LUMINESCENCE
METALS
MEV RANGE
SPECTRA
TRANSITION ELEMENTS
640304* - Atomic
Molecular & Chemical Physics- Collision Phenomena