Supralinearity of nuclear research emulsions. [Mimics radiation response of biological systems]
Conference
·
OSTI ID:7234315
Nuclear emulsions processed in discriminating developers intended to suppress small latent sites, exhibit supralinear sensitometric blackness-exposure curves, whose character varies according to developing time, concentration, and composition, yielding hittedness ranging from 1 to 8, singly and in combination. These emulsion-processing combinations display the phenomena called ion-kill (sensitization by the transit of a single charged particle) and gamma-kill (sensitization by the overlap of secondary electron paths, whether from x-rays or from the delta-rays from heavy ions) in radiobiology. Here emulsions are blackened by x-rays when these same plates reveal no electron tracks, or no alpha-particle tracks, or even no fission-fragment tracks. The supralinearity of the emulsion response to x-rays, and the consequent suppression of low LET radiations suggest that these materials have the potential to mimic the response of biological systems to particulate radiations of different charge and speed.
- Research Organization:
- Nebraska Univ., Lincoln (USA)
- DOE Contract Number:
- EY-76-S-02-1671
- OSTI ID:
- 7234315
- Report Number(s):
- COO-1671-70; CONF-760964-2
- Country of Publication:
- United States
- Language:
- English
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