Average Energy Required to Produce an Ion Pair-C3FCC6CB

This Report reviews the available information on the mean energy required to produce an ion pair (W) in gases, liquids and solids, for a variety of radiations. The Report provides, where possible, suggested values for current usage. For gases, it provides an examination of (1) experimental methods, (2) current theories, and (3) gas mixtures, and then includes a compilation of experimental values with emphasis on energy dependence and suggested values. For liquids and solids, references to more extensive discussions elsewhere are given. The report also provides introductory material on the history and use of W and a concluding section on expected trends in future research and new applications.