Jaehong Lee , Fabiana Rossi , Yu Kodama , Kota Hironaka , Mitsuo Koizumi , Tadafumi Sano , Yasunori Matsuo , Jun-ichi Hori
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引用次数: 0
Abstract
Silica glass has been used as a base and host material in vitrified radioactive waste and lithium glass scintillators for neutron detection because of its superb transparency, high heat resistance, and excellent chemical inertness. Therefore, an accurate total cross section of the silica glass is crucial to evaluate the criticality safety of vitrified wastes and understand the neutron response for lithium glass scintillators. This study performed neutron transmission measurements for silica glass using a pulsed neutron beam with the time-of-flight method at the Kyoto University Institute for Integrated Radiation and Nuclear Science − Linear Accelerator to provide an accurate total cross section in the thermal and epithermal energy range. We obtained the neutron total cross section of the silica glass in the energy region from 0.002–25 eV. The results were compared and discussed with previous results and evaluated data.
硅玻璃因其极佳的透明度、高耐热性和优异的化学惰性，一直被用作玻璃化放射性废物和中子探测锂玻璃闪烁体的基体和主材料。因此，精确的硅玻璃总截面对于评估玻璃化废物的临界安全性和了解锂玻璃闪烁体的中子响应至关重要。本研究在京都大学综合辐射与核科学研究所--直线加速器使用脉冲中子束和飞行时间法对硅玻璃进行了中子透射测量，以提供热能和表热能范围内的精确总截面。我们获得了二氧化硅玻璃在 0.002-25 eV 能量范围内的中子总截面。我们将结果与以前的结果和评估数据进行了比较和讨论。
期刊介绍：
Annals of Nuclear Energy provides an international medium for the communication of original research, ideas and developments in all areas of the field of nuclear energy science and technology. Its scope embraces nuclear fuel reserves, fuel cycles and cost, materials, processing, system and component technology (fission only), design and optimization, direct conversion of nuclear energy sources, environmental control, reactor physics, heat transfer and fluid dynamics, structural analysis, fuel management, future developments, nuclear fuel and safety, nuclear aerosol, neutron physics, computer technology (both software and hardware), risk assessment, radioactive waste disposal and reactor thermal hydraulics. Papers submitted to Annals need to demonstrate a clear link to nuclear power generation/nuclear engineering. Papers which deal with pure nuclear physics, pure health physics, imaging, or attenuation and shielding properties of concretes and various geological materials are not within the scope of the journal. Also, papers that deal with policy or economics are not within the scope of the journal.
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