Operation and Performance of FRAM Version 5.1

The Fixed-Energy Response-Function Analysis with Multiple Efficiency (FRAM) code was developed at Los Alamos National Laboratory (LANL) to measure the gamma-ray spectrometry of the isotopic composition of plutonium, uranium, and other actinides. It is being upgraded to version 5.1. It is simple to operate and much more powerful than its predecessor, FRAM version 4. In addition to the “normal” operation, FRAM version 5.1 also includes the command-line operation mode. This mode of operation is useful for users who want to incorporate FRAM into their own application