1. Akutagawa, W., Dunlap, H. L., Hart, R. and Manh, O. J. (1979), J. Appl. Phys. 50, 777.
2. Andersen, H. H. (1979), Appl. Phys. 18, 131.
3. Averbaek, R. S., Benedeck, R. and Merkle, K. L. (1978), Phys. Rev. B 18, 4156.
4. Avcrback, R. S., Rehn, L. E., Okamoto, P. R. and Cook, R. E. (1981a) Nuel. Instr. Methods 182 & 183, 79.
5. Averbaek, R. S., Rehn, L. E., Wiedenich, H. and Cook, R. E. (1981b) in “Phase Stability Under Irradiatioo,” J. R. Holland, L. K. Mansur and D. I. Potter, eds. ( AIME, New York, NY ), p. 101.