Nondestructive identification of isotopes using nuclear resonance fluorescence

Shizuma Toshiyuki; Hayakawa Takehito; Hajima Ryoichi; Kikuzawa Nobuhiro; Ohgaki Hideaki; Toyokawa Hiroyuki

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Nondestructive identification of isotopes using nuclear resonance fluorescence

机译：使用核共振荧光对同位素进行无损鉴定

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Nondestructive identification of heavy isotopes concealed in a thick iron box has been demonstrated by using nuclear resonance fluorescence. A quasi-monochromatic photon beam produced by the collision of laser quanta with high energy electrons was used for resonant excitation of nuclear levels in 206Pb and 208Pb. By measuring the resonant γ rays emitted from 206Pb and 208Pb, each of these isotopes were clearly identified. The ratio of the effective thickness, i.e., concentration distribution, of these isotopes was deduced from the relative intensities of the measured nuclear resonance fluorescence strengths.

机译：通过使用核共振荧光已经证明了隐藏在厚铁盒中的重同位素的非破坏性鉴定。激光量子与高能电子的碰撞产生的准单色光子束用于 206 Pb和 208 Pb中核能级的共振激发。通过测量从 206 Pb和 208 Pb发出的共振γ射线，可以清楚地识别出每个同位素。这些同位素的有效厚度之比，即浓度分布，是从测得的核共振荧光强度的相对强度推导出来的。

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来源
《Review of Scientific Instruments》 |2012年第1期|p.1-4|共4页
作者
Shizuma Toshiyuki; Hayakawa Takehito; Hajima Ryoichi; Kikuzawa Nobuhiro; Ohgaki Hideaki; Toyokawa Hiroyuki;
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Quantum Beam Science Directorate, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan;

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3. Nondestructive Detection of Heavily Shielded Materials by Using Nuclear Resonance Fluorescence with a Laser-Compton Scattering y-ray Source [J] . Nobuhiro Kikuzawa, Ryoichi Hajima, Nobuyuki Nishimori, Applied physics express . 2009,第3期

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6. Experimental demonstration of an isotope-sensitive warhead verification technique using nuclear resonance fluorescence [O] . Jayson R. Vavrek, Brian S. Henderson, Areg Danagoulian 2018

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7. Demonstration of tomographic imaging of isotope distribution by nuclear resonance fluorescence [O] . Heishun Zen, Hideaki Ohgaki, Yoshitaka Taira, 2019

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Nondestructive identification of isotopes using nuclear resonance fluorescence

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