Study on some characteristics of nuclear emulsions

The authors describe the variation of some characteristics of the nuclear emulsion such as sensitivity, fog density and latent image stability influenced by adding ascorbic acid into the finished emulsion N-4. A comparative study of latent image stability is made between Fuji ET-7B nuclear emulsion and authors' under different temperature and relative humidity. The result indicates that the addition of ascorbic acid obviously improves the latent image stability of the emulsion N-4. The Fuji ET-7B emulsion and the emulsion N-4 containing ascorbic acid have similar latent image fading quality at lower temperature while the Japanese sample does have better quality at room temperature