Electron capture in m-shell x-ray production from heavy elements by 25- and 35- MeV fluorine ions

Journal Article · Fri Apr 01 04:00:00 EST 1983 · IEEE Trans. Nucl. Sci.; (United States)

DOI:https://doi.org/10.1109/TNS.1983.4332409· OSTI ID:5676290

Mehta, R; Andrews, M C; Duggan, J L; Lapicki, G; McDaniel, F D; Miller, P P; Rayburn, L A; Zander, A R

M-shell x-ray production cross sections have been measured for thin solid targets ( about 2 ..mu..g/cm/sup 2/) of Au, Pb, Bi, and U for 25 and 35 MeV incident /sup 19//sub 9/F /SUP q+/ ions (q = 4, 5, 6, 8, 9). The target M-shell x-ray production cross sections by projectiles with one or two K-shell vacancies are found to be enhanced over those by projectiles without K-shell vacancies. The cross sections averaged over target thickness were measured as a function of target thicknesses. Electron capture (EC) to the L-, M-, ...shells and EC to the K-shell of the projectile, have been extracted from the data. These are compared with the predictions of first Born theories, i.e., OBK of Nikolaev for EC. The data are also compared with the theory by Brandt and Lapicki that goes beyond the first Born approximation, i.e., the ECPSSR approach which accounts for the Energy loss, Coulomb deflection and Relativistic effects in the Perturbed Stationary State theory.

• Research Organization: Dept. of Physics, North Texas State Univ., Denton, TX 76203
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 5676290
• Journal Information: IEEE Trans. Nucl. Sci.; (United States), Journal Name: IEEE Trans. Nucl. Sci.; (United States) Vol. 30:2; ISSN IETNA
• Country of Publication: United States
• Language: English

Related Subjects

640301* -- Atomic
Molecular & Chemical Physics-- Beams & their Reactions
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACTINIDES
BASIC INTERACTIONS
BEAM PRODUCTION
BISMUTH
BORN APPROXIMATION
CAPTURE
CHARGED PARTICLES
COLLISIONS
COULOMB SCATTERING
CROSS SECTIONS
DATA
ELASTIC SCATTERING
ELECTROMAGNETIC INTERACTIONS
ELECTROMAGNETIC RADIATION
ELECTRON CAPTURE
ELECTRONIC STRUCTURE
ELEMENTS
ENERGY LOSSES
ENERGY RANGE
EXPERIMENTAL DATA
FLUORINE IONS
GOLD
HEAVY IONS
INFORMATION
INTERACTIONS
ION COLLISIONS
IONIZING RADIATIONS
IONS
K SHELL
L SHELL
LEAD
LOSSES
M SHELL
METALS
MEV RANGE
MEV RANGE 10-100
MULTICHARGED IONS
NUMERICAL DATA
PERTURBATION THEORY
RADIATIONS
RELATIVISTIC RANGE
SCATTERING
THEORETICAL DATA
TRANSITION ELEMENTS
URANIUM
X RADIATION