Depth Distribution of Damage Due to Ionization

  • K. B. Winterbon


The depth distribution of the damage due to ionization caused by heavy ion irradiation is calculated by the transport equation method previously used for the calculation of range and damage distributions. The calculation differs from Brice’s chiefly in that it allows for the transport of energy by recoils away from the primary projectile path. Like the damage distribution, it should be more accurate than Brice’s at low energies.

It is found that a power-law limit of the ionization distribution can be constructed; thus one may take advantage of the simple scaling properties of power-law distributions.

The importance of energy transport by recoils is examined for both ionization and damage distributions.

A qualitative distinction between the ionization distribution and range or damage distributions is that the ionization distribution is discontinuous at the target surface. (This refers to the infinite target of the calculations, where the “surface” is merely a plane at which ion motion starts.) The differential-equation method of obtaining distributions from moments is generalized to allow inclusion of this discontinuity.


Depth Distribution Ionization Distribution Energy Transport Target Atom Damage Distribution 
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  1. [1]
    D. K. Brice, in Proc. III International Conference on Ion Implantation…, Yorktown Heights, New York, December 1972.Google Scholar
  2. [2]
    G. W. Arnold and F. L. Vook, Rad. Effects 14, 157 (1972).CrossRefGoogle Scholar
  3. [3]
    Other references are given in refs. 1 and 5.Google Scholar
  4. [4]
    K. B. Winterbon, Rad. Effects 13, 215 (1972).CrossRefGoogle Scholar
  5. [5]
    D. K. Brice, Sandia Report SLA-73–0230, March 1973.Google Scholar
  6. [6]
    D. K. Brice, Rad. Effects 11, 227 (1971).CrossRefGoogle Scholar
  7. [7]
    K. B. Winterbon, P. Sigmund, and J. B. Sanders, Mat. Fys. Medd. Dan. Vid. Selsk. 37, No. 14 (1970).Google Scholar
  8. [8]
    I thank Knud Taulbjerg for insisting on this point sufficiently often.Google Scholar

Copyright information

© Springer Science+Business Media New York 1975

Authors and Affiliations

  • K. B. Winterbon
    • 1
  1. 1.Chalk River Nuclear LaboratoriesAtomic Energy of Canada LimitedChalk RiveryCanada

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