RESRAD-BIOTA is available free of charge and can be downloaded from the following link.
An updated version of the code new version (V.1.5), which has probabilistic analysis capability that allows users to conduct uncertainty analysis on most input parameters, was released in December 2009.
A factsheet and user manual are available from the ANL website.
The RESRAD-BIOTA package is designed as a screening tool with, in effect, a requirement for site specific data at anything above the initial screening levels. However, the tool does contain allometric models enabling the user to define transfer to terrestrial/riparian mammal and bird species of interest including the
creation of simple foodchains (see What is allometry?).
The RESRAD-BIOTA code has been applied by both the code developers and independent users in intercomparison exercises of the IAEA's EMRAS programmes.
Training is available on the RESRAD packages including RESRAD-BIOTA (see the ANL website)