Ionization Yield of Radiations. II. The Fluctuations of the Number of Ions
- 1 July 1947
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 72 (1) , 26-29
- https://doi.org/10.1103/physrev.72.26
Abstract
The ionization produced by individual fast charged particles is frequently used as a measure of their initial energy; fluctuation effects set a theoretical limit to the accuracy of this method. Formulas are derived here to estimate the statistical fluctuations of the number of ions produced by constant amounts of radiation energy. The variance of the number of ionizations is found to be two or three times smaller than if this number were governed by a Poisson distribution. An improved understanding is gained of the statistical treatment of fluctuation phenomena.Keywords
This publication has 2 references indexed in Scilit:
- On the Theory of Ionization Yield of Radiations in Different SubstancesPhysical Review B, 1946
- LX. On the decrease of velocity of swiftly moving electrified particles in passing through matterJournal of Computers in Education, 1915