In libamtrack, there are currently seven parametrizations of the maximal distance electrons travel from the center of a particle track as a function of the primary particle's energy. They are referred to using sequential positive integer numbers (see details).
|1||A simple test function (constant range)|
|2||Parametrization proposed by Butts and Katz (Butts & Katz, 1972)|
|3||Parametrization proposed by M. Waligorski (Waligorski, 1985)|
|4||Parametrization proposed by O. Geiss (Geiss, 1997)|
|5||Parametrization proposed by M. Scholz (Scholz, 1997)|
|6||Parametrization proposed by J. Edmund (Edmund et al., 2007)|
|7||Parametrization proposed by Tabata (Tabata, 1972)|
More information on the electron-range models, especially the explicit formulas used, valid energy ranges and references to literature are found in the libamtrack reference manual (http://libamtrack.dkfz.org/libamtrack/images/3/31/LibamtrackReferenceManual.pdf).