High-Energy Neutron Imaging Development at LLNL

Hall, J ; Rusnak, B ; Fitsos, P

Lawrence Livermore National Laboratory

关键词: Lawrence Livermore National Laboratory;    46 Instrumentation Related To Nuclear Science And Technology;    43 Particle Accelerators;    Neutrons;    Stockpiles;   

DOI  :  10.2172/900879
RP-ID  :  UCRL-TR-226786
RP-ID  :  W-7405-ENG-48
RP-ID  :  900879

美国|英语

来源: UNT Digital Library

【 摘 要 】

We are proceeding with the development of a high-energy (10 MeV) neutron imaging system for use as an inspection tool in nuclear stockpile stewardship applications. Our goal is to develop and deploy an imaging system capable of detecting cubic-mm-scale voids, cracks or other significant structural defects in heavily-shielded low-Z materials within nuclear device components. The final production-line system will be relatively compact (suitable for use in existing or proposed facilities within the DOE complex) and capable of acquiring both radiographic and tomographic (CT) images. In this report, we will review our programmatic accomplishments to date, highlighting recent (FY06) progress on engineering and technology development issues related to the proposed imaging system. We will also discuss our preliminary project plan for FY07, including engineering initiatives, proposed radiation damage experiments (neutrons and x rays) and potential options for conducting classified neutron imaging experiments at LLNL.