Evidence for electron-electron interaction in projectile K -shell ionization

Journal Article · Sun Oct 29 23:00:00 EST 1989 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.63.1938· OSTI ID:5287320

Hulskotter, H; Meyerhof, W E; Dillard, E; Guardala, N ^[1]

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1. Department of Physics, Stanford University, Stanford, California 94305-4060 (US)

Cross sections for projectile {ital K}-shell ionization were measured for 0.75--3.5-MeV/{ital N} C{sup 5+} and O{sup 7+} projectiles in collisions with H{sub 2} and He targets. The experimental results agree with plane-wave Born-approximation calculations which take into account the interaction between projectile and target electrons. We demonstrate that for energies where the target electrons have sufficient kinetic energy in the projectile frame to ionize the projectile electron, the electron-electron interaction can lead to a significant increase in the total ionization cross section.

• OSTI ID: 5287320
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 63:18; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
BORN APPROXIMATION
CARBON IONS
CATIONS
CHARGED PARTICLES
COLLISIONS
CORRELATIONS
CROSS SECTIONS
ELECTRON-ELECTRON INTERACTIONS
ELECTRONIC STRUCTURE
ELEMENTS
ENERGY RANGE
FLUIDS
GASES
HELIUM
HYDROGEN
INNER-SHELL IONIZATION
INTERACTIONS
ION COLLISIONS
ION-ATOM COLLISIONS
ION-MOLECULE COLLISIONS
IONIZATION
IONS
K SHELL
KEV RANGE
KEV RANGE 100-1000
LEPTON-LEPTON INTERACTIONS
MEV RANGE
MEV RANGE 01-10
MOLECULE COLLISIONS
MOLECULES
NONMETALS
OXYGEN IONS
PARTICLE INTERACTIONS
PROJECTILES
RARE GASES
TARGETS