REVIEWOF PHOTONUCLEAR CROSS SECTIONS

摘要

We provide an overview of recent efforts to create extensive library of photonuclear cross sections. An international project under the auspices of the IAEA produced the library of photonuclear cross sections for 164 isotopes (43 elements), mostly up to 140 MeV. This useful initial work served as the basis for the first US photonuclear cross-section library that is part of the new US Evaluated Nuclear Data File for nuclear science and technology, ENDF/B-VII.0, released in December 2006. We also briefly discuss future needs and challenges. Among them are measurements with tagged photons, strengthening of compilation, more extensive validation, and the need of better data for detection of explosives and active interrogation of special nuclear materials.