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Full-Text Articles in Physical Sciences and Mathematics
Response Of Nuclear Emulsion To Electron Beams, Robert Katz, E. J. Kobetich
Response Of Nuclear Emulsion To Electron Beams, Robert Katz, E. J. Kobetich
Robert Katz Publications
A recent theory of particle tracks assumes that the probability P for grain development in nuclear emulsion depends on the local dose E of ionization energy deposited by secondary electrons (delta rays) in the neighborhood of the particle track. The response is assumed to be one of exponential survival; that is, if E0 is the dose for 37% survival, then P = 1 – exp (-E/E0). By calculation of the dose E(t) deposited at depth t in the emulsion by normally incident, monoenergetic electron beams, and applying the assumed dose-effect relationship, …
Formation Of Particle Tracks, Robert Katz, E. J. Kobetich
Formation Of Particle Tracks, Robert Katz, E. J. Kobetich
Robert Katz Publications
The formation of particle tracks, and such phenomena as the detection of charged particles and the damage produced by charged particles, are intimately related to the spatial distribution of ionization energy deposited by δ-rays. Changes in the spectrum of δ-rays with the velocity of the primary particle imply that linear measures of the interaction of the primary particle with the medium, such as specific energy loss, or primary ionization, are unsatisfactory measures of effects produced in the medium, for they contain no knowledge of the spatial deposition of the lost energy.
Rbe, Let, And Z/ΒΑ, Robert Katz
Rbe, Let, And Z/ΒΑ, Robert Katz
Robert Katz Publications
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.