Update on High-Energy Neutron Imaging Development at LLNL

James Hall
Lawrence Livermore National Laboratory,
Physics and Advanced Technologies
April 17, 2001

Abstract:

We are continuing with the development of a high-energy (10 MeV) neutron imaging system for use in NDE applications in support of stockpile stewardship. Our goal is to develop an imaging system capable of detecting cubic-mm-scale voids or other structural defects in heavily-shielded low-Z materials within thick sealed objects. The final system will be relatively compact (suitable for use in existing facilities within the DOE complex) and capable of acquiring both radiographic images and full tomographic data sets. The overall design of the system will be discussed and results from several recent imaging experiments will be presented.