L-shell x-ray production cross sections in Nd, Gd, Ho, Yb, Au and Pb for 25-MeV carbon and 32-MeV oxygen ions
Conference
·
OSTI ID:5923561
L-shell x-ray production cross sections in /sub 60/Nd, /sub 64/Gd, /sub 67/Ho, /sub 70/Yb, /sub 79/Au and /sub 82/Pb have been measured for incident 25 MeV /sub 6//sup 12/C/sup +q/(q = 4,5,6) and 32 MeV /sub 8//sup 16/O/sup +q/(q = 5,7,8) ions. Measurements were made on targets ranging in thickness from 1 to 100 ..mu..g/cm/sup 2/. Echancement in the L-shell x-ray production cross section for projectiles with one or two K-shell vacancies over those for projectiles with no K-shell vacancies is observed. The sum of direct ionization to the continuum (DI) plus electron capture (EC) to the L,M,N ... shells and EC to the K-shell of the projectile have been extracted from the data. Calculations in the first Born approximation are approx. 10 times larger than the data. Predictions of the ECPSSR theory that accounts for the energy-loss, Coulomb deflection, perturbed-stationary state, and relativistic effects are in good agreement with the data for both ions.
- Research Organization:
- North Texas State Univ., Denton (USA). Dept. of Physics; East Carolina Univ., Greenville, NC (USA). Dept. of Physics; Oak Ridge National Lab., TN (USA); Texas Univ., Arlington (USA)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 5923561
- Report Number(s):
- CONF-841117-48; ON: DE85006924
- Country of Publication:
- United States
- Language:
- English
Similar Records
L- and M-shell x-ray production cross sections of Nd, Gd, Ho, Yb, Au, and Pb by 25-MeV carbon and 32-MeV oxygen ions
L- and M-shell x-ray production cross sections of neodymium, gadolinium, holmium, ytterbium, gold, and lead by 25-MeV carbon and 32-MeV oxygen ions
M-shell electron capture and direct ionization of gold by 25-MeV carbon and 32-MeV oxygen ions
Journal Article
·
Thu Oct 15 00:00:00 EDT 1987
· Phys. Rev. A; (United States)
·
OSTI ID:6117260
L- and M-shell x-ray production cross sections of neodymium, gadolinium, holmium, ytterbium, gold, and lead by 25-MeV carbon and 32-MeV oxygen ions
Thesis/Dissertation
·
Wed Dec 31 23:00:00 EST 1986
·
OSTI ID:6989722
M-shell electron capture and direct ionization of gold by 25-MeV carbon and 32-MeV oxygen ions
Conference
·
Sat Dec 31 23:00:00 EST 1983
·
OSTI ID:6046810
Related Subjects
640301* -- Atomic
Molecular & Chemical Physics-- Beams & their Reactions
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ATOM COLLISIONS
BORN APPROXIMATION
CARBON IONS
CHARGED PARTICLES
COLLISIONS
ELECTROMAGNETIC RADIATION
ELECTRONIC STRUCTURE
ELEMENTS
ENERGY RANGE
GADOLINIUM
GOLD
HOLMIUM
ION COLLISIONS
ION-ATOM COLLISIONS
IONIZING RADIATIONS
IONS
K SHELL
L SHELL
LEAD
METALS
MEV RANGE
MEV RANGE 10-100
MULTICHARGED IONS
NEODYMIUM
OXYGEN IONS
RADIATIONS
RARE EARTHS
TRANSITION ELEMENTS
X RADIATION
YTTERBIUM
Molecular & Chemical Physics-- Beams & their Reactions
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ATOM COLLISIONS
BORN APPROXIMATION
CARBON IONS
CHARGED PARTICLES
COLLISIONS
ELECTROMAGNETIC RADIATION
ELECTRONIC STRUCTURE
ELEMENTS
ENERGY RANGE
GADOLINIUM
GOLD
HOLMIUM
ION COLLISIONS
ION-ATOM COLLISIONS
IONIZING RADIATIONS
IONS
K SHELL
L SHELL
LEAD
METALS
MEV RANGE
MEV RANGE 10-100
MULTICHARGED IONS
NEODYMIUM
OXYGEN IONS
RADIATIONS
RARE EARTHS
TRANSITION ELEMENTS
X RADIATION
YTTERBIUM