ESR STUDY OF LATENT IMAGE SPECKS IN SILVER-HALIDE CRYSTALS

So-called conduction electron spin resonance (CESR) signals of silver specks in silver halide crystals quenched from melt with excess silver are studied in relation to the quantum size effect. The proportionality relationship between g-shift and half-width is verified in the gradual growth of silver specks. The early stage of silver growth is attributed to the accumulation of silver atoms onto the antisite silver atoms. The gradual growth rate is explained by taking account of the electric field effects of a trapped electron. The g-shift and half-width are indifferent of temperature, and the Kawabata theory is partly revived phenomenologically instead of the Myles theory to explain the number of silver atoms in a particle of latent images. © 1990 The Japan Society of Applied Physics.