The impact parameter dependence of swift electron-matter interactions

Conference · Fri Jan 01 00:00:00 EST 1988

OSTI ID:6697356

Ritchie, R H

In quantal collision theories, momentum and energy are usually taken to be good quantal variables. Classical collision theory, on the other hand, uses position and time to describe interactions between a probe and a target. In modern physics one may wish to express quantal theories in terms of spacelike variables. For example, experiments are now common in which one measures, by means of a narrowly focused beam of swift electrons, the distribution in energy of losses experienced in a very small region of space. Also, in experiments with channeled ions, and in microdosimetry, one is interested in the spatial coherence of unlocalized excitations created by swift ions and electrons, and their ultimate localization through transfer of energy to, e.g., single-particle excitations. In this lecture the author describes work, done in part in collaboration with Professor Howie, on some aspects of the spatial dependence of inelastic interactions between a charged particle and a condensed matter target. 6 refs., 1 fig.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6697356
• Report Number(s): CONF-8808159-1; ON: DE89002341
• Resource Relation: Conference: Summer school on spectroscopy of solid surfaces, San Sebastian, Spain, 29 Aug 1988; Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
MATTER
ELECTRON COLLISIONS
ENERGY LOSSES
EXCITATION
IMPACT PARAMETER
INELASTIC SCATTERING
MEAN FREE PATH
PROBABILITY
SCANNING ELECTRON MICROSCOPY
SPATIAL RESOLUTION
COLLISIONS
ELECTRON MICROSCOPY
ENERGY-LEVEL TRANSITIONS
LOSSES
MICROSCOPY
RESOLUTION
SCATTERING
656003* - Condensed Matter Physics- Interactions between Beams & Condensed Matter- (1987-)