RESEARCH STUDY ON RESONANCE NEUTRON TOMOGRAPHY USING LINAC TIME OF FLIGHT TECHNIQUE

利用直线加速器飞行时间技术进行共振中子断层扫描的研究

• 批准号: 59420049
• 负责人: SEKIGUCHI Akira
• 金额: $ 8.64万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (A)
• 财政年份: 1984
• 资助国家: 日本
• 起止时间: 1984 至 1985
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-59420049/
• 关键词: RESONACE NEUTRON; RADIOGRAPHY; TOMOGRAPHY; LINAC; TIME OF FLIGHT TECHNIQUE; 飛行時間法; 核種同定; 2次元パルス波高分析器; 位置敏感型He-3検出器

The idea of resonance neutron tomography has been examined using the LINAC ＆ time of flight technique for the resonance neutron beam production, and the transmitted neutrons through the sample specimen have been counted by the one dimensional position sensitive He-3 gas proportional counter and two parameter 64K PHA system.The radiography data of Cobalt and Gold foils have been successfully obtained using this system, where the two elements have been clearly distinguished using the difference of each resonance energy of 132 eV (Co) and 4.91 eV (Au). The present standard deviation value of the spaciel resolution function has been practically obtained as 1.5 cm including the neutron scattering effect by the specimen itself.

使用Linac和飞行时间的共振中性束产生的LINAC和飞行时间进行了共鸣中的层造影的想法，并且通过样品的传输中子通过一个维度敏感的He-3气体比例和两个参数COMARETER COMPER和两个参数64K PHA系统来计算了一个差异，从而取得了成功的效果。每个共振能量为132 eV（CO）和4.91 eV（AU）。实际上，Spaciel分辨率函数的当前标准偏差值实际上以1.5 cm的形式获得，包括样品本身的中子散射效应。