Generation-Recombination Noise in Ge Single Crystals under Fast-Neutron Irradiation

Abstract

Experimental results are reported on the Fourier spectra of generation-recombination (g-r) noise of Ge single crystals, using a reversible technique to vary the noise parameters. Namely, a comparison is made with the noise before irradiation, after irradiation with 14.7-MeV neutrons, and after annealing. Reasonable agreement was obtained with the theory based on a three-level recombination with a single (Shockley-Read) level in the forbidden band.