The production of nitrogen-13 by neutron capture in boron compounds

M.H. Schleier-Smith; L.D. van Buuren; J.M. Doyle; S.N. Dzhosyuk; D.M. Gilliam; C.E.H. Mattoni; D.N McKinsey; L. Yang; P.R. Huffman

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The production of nitrogen-13 by neutron capture in boron compounds

机译：硼化合物中子捕获产生的氮13

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The ~(10)B(α, n)~(13)N reaction is studied as an activation process in a variety of solid boron-containing neutron shielding materials. The source of α-particles is the neutron capture reaction ~(10)B(n, α)~7Li. Samples of boron carbide, boron oxide, and boron nitride are irradiated with thermal neutrons and the rate of ~(13)N production is determined. ~(13)N promptly decays, emitting a positron. This positron efficiently annihilates with electrons in the material and the resultant 511 keV gamma ray is detected. For each of the above-mentioned materials, the rate of I3N production is (1-2)x 10~(-10) per captured neutron.

机译：研究了〜（10）B（α，n）〜（13）N反应作为多种固体含硼中子屏蔽材料的活化过程。 α粒子的来源是中子俘获反应〜（10）B（n，α）〜7Li。用热中子辐照碳化硼，氧化硼和氮化硼样品，并确定〜（13）N产生的速率。〜（13）N立即衰变，发射出正电子。该正电子有效地消除了材料中的电子，并检测到了511 keV的伽马射线。对于上述每种材料，每个捕获的中子的I3N产生速率为（1-2）×10〜（-10）。

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《Nuclear Instruments & Methods in Physics Research. B, Beam Interactions with Materials and Atoms》 |2004年第4期|p.531-536|共6页
作者
M.H. Schleier-Smith; L.D. van Buuren; J.M. Doyle; S.N. Dzhosyuk; D.M. Gilliam; C.E.H. Mattoni; D.N McKinsey; L. Yang; P.R. Huffman;
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Harvard University, Cambridge, MA 02138, USA;

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正文语种 eng
中图分类原子核物理学、高能物理学;原子能技术;
关键词
boron; boron carbide; boron oxide; boron nitride; neutron;

机译：硼;碳化硼;氧化硼;氮化硼;中子;

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The production of nitrogen-13 by neutron capture in boron compounds

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