Nondestructive assay of plutonium and minor actinide in spent fuel using nuclear resonance fluorescence with laser Compton scattering γ-rays

被引：43

作者：

Hayakawa, Takehito ^{[1
]}

Kikuzawa, Nobuhiro ^{[2
,3
]}

Hajima, Ryoichi ^{[3
]}

Shizuma, Toshiyuki ^{[1
]}

Nishimori, Nobuyuki ^{[3
]}

Fujiwara, Mamoru ^{[1
,4
]}

Seya, Michio ^{[5
]}

机构：

[1] Japan Atom Energy Agcy, Adv Photon Res Ctr, Kizugawa, Kyoto 6190215, Japan

[2] Japan Atom Energy Agcy, J PARC Res Ctr, Tokai, Ibaraki 3191195, Japan

[3] Japan Atom Energy Agcy, Adv Photon Res Ctr, Tokai, Ibaraki 3191195, Japan

[4] Osaka Univ, Nucl Phys Res Ctr, Osaka 5670047, Japan

[5] Japan Atom Energy Agcy, Nucl Nonproliferat Sci & Technol Ctr, Tokai, Ibaraki 3191195, Japan

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2010年 / 621卷 / 1-3期

关键词：

Spent fuel; Safeguards of nuclear materials; Nondestructive assay; CARGO;

D O I：

10.1016/j.nima.2010.06.096

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We propose a new nondestructive assay method for (235)U, (239)Pu, and minor actinides in spent nuclear fuel assembly in a water pool. Nuclear fuel materials are detected using nuclear resonance fluorescence (NRF) with laser Compton scattering (LCS) gamma-rays. The NRF assay can provide a finger print of each isotope since the NRF gamma-ray energy is characteristic of a specific nuclide. We design a high-flux LCS gamma-ray source, in which gamma-rays are generated by collision of laser photons provided from Yb-doped fiber laser and electrons from energy recovery linac. This system has following advantages: this can detect isotopes of most elements behind heavy materials such as uranium of a thickness of several centimeters, and analyze the fuel assembly in a water pool. A simulation calculation shows that we can detect 1% fraction (239)Pu in all the fuel rods with statistical error lower than 2% using the high flux LCS gamma-ray source and the measurement time of 4000s. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：695 / 700

页数：6

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