| Popis: |
Data obtained from extensive measurements on counting techniques for alpha particle radioactive decay from a source containing 94 Pu 239 , 95 Am 241 and 96 Cm 244 are presented. These data show that the statistics are non-Poissonian for large counting times (of the order of 1000 minutes) contrary to the popular belief that alpha decay is an example of Poissonian statistics. Measurements of the Allan variance indicated the presence of a slow Lorentzian flicker noise and of 1/f noise, and the magnitude of the noise for large counting times is considerably larger than that predicted by Poissonian statistics. |
