Differential die-away technology applied to detect special nuclear materials

Lianjun Zhang; Mengjiao Tang; Chen Zhang; Yulai Zheng; Yong Li; Chao Liu; Qiang Wang; Guobao Wang

Nuclear Engineering and Technology (Jul 2023)

Differential die-away technology applied to detect special nuclear materials

Lianjun Zhang,
Mengjiao Tang,
Chen Zhang,
Yulai Zheng,
Yong Li,
Chao Liu,
Qiang Wang,
Guobao Wang

Affiliations

Lianjun Zhang: Department of Nuclear Technology and Application, China Institute of Atomic Energy, Beijing, 102413, China; IAEA Collaborating Center for Nuclear Security Technologies, China Institute of Atomic Energy, Beijing, 102413, China
Mengjiao Tang: Department of Nuclear Technology and Application, China Institute of Atomic Energy, Beijing, 102413, China; Key Laboratory of Nuclear Detection Technology, China Institute of Atomic Energy, Beijing, 102413, China
Chen Zhang: Department of Nuclear Technology and Application, China Institute of Atomic Energy, Beijing, 102413, China; IAEA Collaborating Center for Nuclear Security Technologies, China Institute of Atomic Energy, Beijing, 102413, China
Yulai Zheng: Department of Nuclear Technology and Application, China Institute of Atomic Energy, Beijing, 102413, China; IAEA Collaborating Center for Nuclear Security Technologies, China Institute of Atomic Energy, Beijing, 102413, China; Corresponding author. Department of Nuclear Technology and Application, China Institute of Atomic Energy, Beijing, 102413, China.
Yong Li: Department of Nuclear Technology and Application, China Institute of Atomic Energy, Beijing, 102413, China; IAEA Collaborating Center for Nuclear Security Technologies, China Institute of Atomic Energy, Beijing, 102413, China
Chao Liu: Department of Nuclear Technology and Application, China Institute of Atomic Energy, Beijing, 102413, China; IAEA Collaborating Center for Nuclear Security Technologies, China Institute of Atomic Energy, Beijing, 102413, China
Qiang Wang: Department of Nuclear Technology and Application, China Institute of Atomic Energy, Beijing, 102413, China; IAEA Collaborating Center for Nuclear Security Technologies, China Institute of Atomic Energy, Beijing, 102413, China
Guobao Wang: Department of Nuclear Technology and Application, China Institute of Atomic Energy, Beijing, 102413, China; IAEA Collaborating Center for Nuclear Security Technologies, China Institute of Atomic Energy, Beijing, 102413, China; Key Laboratory of Nuclear Detection Technology, China Institute of Atomic Energy, Beijing, 102413, China

Journal volume & issue: Vol. 55, no. 7
pp. 2483 – 2488

Abstract

Read online

Differential die-away analysis (DDAA) technology is a special nuclear material (SNM) active detection analysis technology. Be a nuclear material shielded or not, the technology can reveal the existence of nuclear materials by inducing fission from an external pulsed neutron source. In this paper, a detection model based on DDAA analysis technology was established by geant4 Monte Carlo simulation software, and the optimal sensitivity of the detection system is achieved by optimizing different configurations. After the geant4 simulation and optimization, a prototype was established, and experimental research was carried out. The result shows that the prototype can detect 200 g of 235U in a steel cylinder shield that's of 1.5 cm in inner diameter, 10 cm in thickness and 280 kg in weight.

Published in Nuclear Engineering and Technology

ISSN: 1738-5733 (Print)
Publisher: Elsevier
Country of publisher: Korea, Republic of
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Nuclear engineering. Atomic power
Website: http://www.journals.elsevier.com/nuclear-engineering-and-technology

About the journal

Abstract

Keywords