Abstract
The problem of incorporating track structure into cell survival models is discussed. The track structure problem is viewed in terms of the primary particles (X rays, electrons, or heavy ions) imparting energy which shows up along the track and as electrons originating at the track with an energy and angular distribution characteristic of the type of primary particles. The ejected electrons and other electrons resulting from their collisions are then responsible for depositing energy at points off the primary particle path. The authors point out the possibility of separating the problem of energy transport away from the track by electrons from the problem of direct interaction of the primary particles. Possible collective effects are incorporated only crudely by adjusting the LET to fit experiment. The discussion of track structure is closely related to previous work by Roesch and Glass. A cell survival model which is closely related to that of Roesch in the case of low LET radiation is developed for heavy ion, electron, or gamma radiation of arbitrary LET and is compared with the RBE theory of Kellerer and Rossi. This cell survival model offers another possiblity for dealing with survival data with heavy ions of varying type and energy.
Original language | English |
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Pages (from-to) | 201-210 |
Number of pages | 10 |
Journal | Radiation Research |
Volume | 63 |
Issue number | 2 |
DOIs | |
State | Published - 1975 |