Proposal of Nondestructive Radionuclide Assay Using a High-Flux Gamma-Ray Source and Nuclear Resonance Fluorescence
Proposal of Nondestructive Radionuclide Assay Using a High-Flux Gamma-Ray Source and Nuclear Resonance Fluorescence
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DOI：
10.1080/18811248.2008.9711453
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发表时间：
2008-05
影响因子：
1.2
通讯作者：
R. Hajima;T. Hayakawa;N. Kikuzawa;E. Minehara
中科院分区：
文献类型：
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作者：
R. Hajima;T. Hayakawa;N. Kikuzawa;E. Minehara
提出了一种用于放射性废物管理的无损检测系统。该系统利用由准单色高通量伽马射线触发的核共振荧光，准单色高通量伽马射线是由相对论电子对激光光子的康普顿散射产生的。我们使用能量回收直线加速器作为电子源，使用锁模光纤激光器和激光超腔作为光子源。这些新技术的结合实现了比现有使用电子存储环的源高得多的伽马射线通量。拟议的伽马射线源产生流量为1010/S/keV的准单色伽马射线，足以用于工业应用，如核废料中放射性核素的无损分析和货物中裂变材料的询问。准单色伽马射线触发的核共振荧光提供了一种对放射性核素和稳定核素进行无损分析的通用方法。
A nondestructive assay system for radioactive waste management is proposed. The system utilizes nuclear resonance fluorescence triggered by a quasi-monochromatic high-flux gamma ray generated from the Compton scattering of laser photons by relativistic electrons. We employ an energy-recovery linac as an electron source and a mode-locked fiber laser followed by a laser supercavity as a photon source. The combination of these novel technologies realizes a gamma-ray flux much higher than existing sources using electron storage rings. The proposed gamma-ray source produces a quasi-monochromatic gamma ray with a flux of 1010/s/keV, which is high enough for industrial applications such as the nondestructive analysis of radionuclides in nuclear waste and the interrogation of fissile material in cargoes. The nuclear resonance fluorescence triggered by quasi-monochromatic gamma rays provides a versatile method of nondestructive analysis of both radioactive and stable nuclides.