Description:
A database containing Physical Reference Data is available online from the National Institute of Standards and Technology (NIST) (mentioned in the August 16, 1996 Scout Report for Science & Engineering). Stopping-Power and Range Tables for Electrons, Protons, and Helium Ions, contains "three web databases, ESTAR, PSTAR and ASTAR, which calculate stopping-power and range tables for electrons, protons, or helium ions, according to methods described in ICRU (International Commission on Radiation Units and Measurements) Reports 37 and 49." In the Appendix section, users will find summaries explaining the significance of the calculated quantities.
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