Production of x rays beyond the K-series limit in gaseous and solid targets

Journal Article · Fri May 01 04:00:00 EDT 1981 · Phys. Rev., A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.23.2443· OSTI ID:6535506

Mowat, J R

X rays of energy beyond the K-series limit have been detected during the bombardment of various low-Z, solid and gaseous targets by C/sup +/, N/sup +/, and O/sup +/ ions of energy 0.75 to 1.9 MeV. K..cap alpha cap alpha.. x rays, most likely from the transition (1s/sup -2/2p/sup -1/)..-->..(2s/sup -1/2p/sup -2/), are emitted by both collision partners in gaseous targets. The low-resolution energy measurements are in good agreement with published calculations. The relative yield from the heavier collision partner is larger than simple vacancy-sharing models would indicate, but electron screening may account for the excess. Molecular-orbital (MO) continuum radiation completely obscures the Kaa lines from thin solid carbon targets. The exponential shape of the MO spectrum beyond the united-atom limit is in reasonable agreement with collision-broadened spontaneous emission.

• Research Organization: Department of Physics, North Carolina State University, Raleigh, North Carolina 27650
• OSTI ID: 6535506
• Journal Information: Phys. Rev., A; (United States), Journal Name: Phys. Rev., A; (United States) Vol. 23:5; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ALUMINIUM
ATOM COLLISIONS
ATOMIC IONS
CARBON
CARBON COMPOUNDS
CARBON IONS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHARGED PARTICLES
COLLISIONS
ELEMENTS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
FLUIDS
GASES
ION COLLISIONS
ION-ATOM COLLISIONS
ION-MOLECULE COLLISIONS
IONS
KEV RANGE
KEV RANGE 100-1000
METALS
MEV RANGE
MEV RANGE 01-10
MOLECULE COLLISIONS
NEON
NITROGEN
NITROGEN IONS
NONMETALS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
OXYGEN IONS
RARE GASES
SPECTRA
X-RAY SPECTRA