Status of the ENDF/B Nuclear Data Library

In December 2011, CSEWG released its latest recommended evaluated nuclear data file, the ENDF/B-VII.1 library. This library incorporated many advances made in the five years after the release of ENDF/B-VII.0. CSEWG is preparing another release and, in anticipation of this, we outline some of the new or improved evaluations along with the improvements to the nuclear data infrastructure.