Detection of radioactive isotopes by using laser Compton scattered γ-ray beams
Detection of radioactive isotopes by using laser Compton scattered γ-ray beams
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DOI：
10.1016/j.nima.2009.05.063
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发表时间：
2009-09-01
影响因子：
1.4
通讯作者：
Ohgaki, H.
中科院分区：
文献类型：
--
作者：
Hajima, R.;Kikuzawa, N.;Ohgaki, H.
核材料的无损检测和分析是管理核废料和防止核材料扩散的最关键问题之一。我们使用激光康普顿散射(LCS)伽马射线束和核共振荧光(NRF)对放射性材料进行无损检测。准单色和能量可调的LCS伽马射线束有助于提高NRF测量过程中的信噪比。我们提出了一种具有能量回收直线加速器的高通量伽马射线源的概念设计，它产生了通量为10(13)光子/S的伽马射线束。本文讨论了用蒙特卡罗程序进行的模拟研究，同位素探测的原则性实验结果，以及LCS X射线和伽马射线设备的发展状况。(C)2009爱思唯尔B.V.保留所有权利。
Non-destructive detection and assay of nuclear materials is one of the most critical issues for both the management of nuclear waste and the non-proliferation of nuclear materials. We use laser Compton scattered (LCS) gamma-ray beams and the nuclear resonance fluorescence (NRF) for the non-destructive detection of radioactive materials. Quasi-monochromatic and energy-tunable LCS gamma-ray beams help improve the signal-to-noise ratio during NRF measurements. We developed the conceptual design of a high-flux gamma-ray source with an energy-recovery linac, which produces a gamma-ray beam at the flux of 10(13) photons/s. In this paper, we discuss the execution of simulation studies using a Monte Carlo code, results of a proof-of-principle experiment for isotope detection, and the status of the development of LCS X-ray and gamma-ray facilities. (C) 2009 Elsevier B.V. All rights reserved.