Research Papers in Physics and Astronomy


Date of this Version

January 1970


Published in Health Physics 18 (1970), p. 175. Published by Pergamon Press. Used by permission.


A call has been issued by Turner and Hollister in this journal for nomination of a suitable combination of charge and velocity to replace LET. It is the purpose of this communication to point out that no single combination of these variables can fully characterize track effects, as these are affected by the ratio of the range rm of the delta ray of maximum energy to the radius a0 of the sensitive volume.

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