The Self-Absorption Corrections and Counting Efficiencies of Certain Fission Products in the β-Proportional Counter

摘要

In general the higher counting efficiencies and stability of these “Sugarman” type counters is to be preferred, and it will be demonstrated that for many isotopes the self absorption corrections are made with a higher degree of accuracy.nThe factor fb is the back scattering coefficient of the mounting material (usually Al or Pt) and is always observed to be greater than unity. The only factor sensitive to the surface density of the sample being counted and its particular self absorption and self scattering is fa.