Discriminated Detection of Nuclear Tracks Recorded on Multilayers of Photographic Emulsions with Different Sensitivities by Color-Development Method

Abstract

We have developed a new method for the detection of nuclear tracks recorded on nuclear plates composed of multiple photographic emulsion layers. Each layer of these plates contained a photographic coupler revealing a different color after color development. The developed silver grains left behind in each layer were colored with differently colored dye clouds when the bleaching process was omitted in the color-development process. The three-dimensional structure of a track was obtained from the color change of the track. The track indicated a different grain density in each layer of different sensitivity, thus expanding the dynamic range of such nuclear plates. Accurate discrimination of particles with different deposit energies by using emulsions with different properties in each layer is also expected.