Transport Theory for Heavy Ion Beams Near a Target Surface,
Abstract
The method of Manning and Padgett (MP) for studying the transport of heavy ion beams in amorphous solids is modified to allow for inelastic (electronics) slowing of the ion beam as well as elastic scattering. The beam ion distribution function consists of three terms with the following characteristics: a C-term, which represents the beam as it first enters the target, wherein it looses energy to inelastic processes but retains its unidirectional character; a B-term, which represents beam ions which have undergone one elastic collision; and an A-term representing beam ions which have undergone two or more elastic collisions. In the present work the exact solutions of the C- and B-portions of the Boltzmann equation are given. An iterative method for solving for the A-term is presented. The results of numerical calculations are reported for a variety of beam ions and beam energies. (Modified author abstract)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 21, 1974
- Accession Number
- AD0780431
Entities
People
- G. P. Mueller
Organizations
- United States Naval Research Laboratory