Fissile and Non-Fissile Material Detection using Nuclear Acoustic Resonance Signatures

Herberg, J ; Maxwell, R ; Tittmann, B R ; Lenahan, P M ; Yerkes, S ; Jayaraman, S

Lawrence Livermore National Laboratory

关键词: Proliferation;    Aluminium;    98 Nuclear Disarmament, Safeguards, And Physical Protection;    Magnetic Fields;    Lock-In Amplifiers;   

DOI  :  10.2172/883830
RP-ID  :  UCRL-TR-216114
RP-ID  :  W-7405-ENG-48
RP-ID  :  883830

美国|英语

来源: UNT Digital Library

【 摘 要 】

This report reviews progress made on NA22 project LL251DP to develop a novel technique, Nuclear Acoustic Resonance (NAR), for remote, non-destructive, nonradiation-based detection of materials of interest to Nonproliferation Programs, including {sup 235}U and {sup 239}Pu. We have met all milestones and deliverables for FY05, as shown in Table 1. In short, we have developed a magnetic shield chamber and magnetic field, develop a digital lock-in amplifier computer to integrate both the ultrasound radiation with the detector, developed strain measurements, and begin to perform initial measurements to obtain a NAR signal from aluminum at room temperature and near the earth's magnetic field. The results obtained in FY05 further support the feasibility of successful demonstration of an NAR experiment for remote, non-destructive, non-radiation-based detection of materials of interest to Nonproliferation Programs.