This software was developed in Japan, in response to the urgent need for environmental monitoring after the Fukushima disaster. The pulse shape recognition algorithm is based on the PRA principle, and works really well.
This software has many neat new functions, such as the ability to subtract background, auto detection of peaks, and the ability to measure the becquerel in a sample of a given size.
BecqMoni Version 0.991 is now available in Japanese and English (January 2013) and is well woth a try.
BecqMoni Download NuclideDefinition.xml