Sharing of energy dissipation between electronic and atomic motion

Book · Thu Nov 01 04:00:00 EST 1962

OSTI ID:4803858

Linhard, J.; Thomsen, P. V.

Integral equations are given for radiation effects, as functions of the incoming particle, the particle energy E and the medium. Also the significant fluctuations in radiation effects are described. As important examples, the energy given to recoil atoms, nu (E), and to electrons, E -- nu (E), from which other radiation damage effects may be obtained is studied. Damage effects such as the number of dislodged atoms are normally proportional to nu (E). The description is based on the differential scattering cross-sections in an ion-atom collision and the stopping cross-section for electron excitation by an incoming ion. For these quantities we apply comprehensive formulas, derived in a Thomas- Fermi treatment. The basic case concerns an incoming particle having the same atomic number and mass as the atoms in the medium. For the basic case curves have been computed giving nu (E) and its fluctuations for any atomic number of the medium. It is desirable that the basic case be investigated experimentally for various energies and atomic numbers. As an example of a secondary case, the effects of fission fragments in a light substance are discussed. (auth)

• Research Organization: Univ. of Aarhus (Denmark)
• NSA Number: NSA-16-033550
• OSTI ID: 4803858
• Country of Publication: IAEA
• Language: English

Related Subjects

ATOMS
COLLISIONS
CROSS SECTIONS
DEFECTS
DIFFERENTIAL EQUATIONS
DISTRIBUTION
ELECTRONS
ENERGY
EXCITATION
FISSION PRODUCTS
IONS
LATTICES
MASS
METALS, CERAMICS, AND OTHER MATERIALS
RADIATION EFFECTS
RECOILS
SCATTERING
THOMAS-FERMI MODEL