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对玛辐射生物炭的结构和捕获参数进行研究,用于剂量测量应用

Umme Muslima¹, Mayeen Uddin Khandaker², S N Mat Nawi¹

¹Applied Physics and Radiation Technologies Group, CCDCU, Faculty of Engineering and Technology, Sunway University, Bandar Sunway, 47500, Selangor, Malaysia.

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine

|July 16, 2025

概括

由于其有利的特性,生物炭显示出被动热发光 (TL) 剂量计的潜力. 玛辐射改变了生物碳.

科学领域:

材料科学材料科学材料科学
辐射物理辐射物理
环境科学环境科学

背景情况:

生物炭是一种环保材料,在剂量测量应用中表现出有希望的物理和化学特性.
热发光 (TL) 剂量测量依赖于能够储存电离辐射能量并在加热后以光形式释放的材料.

研究的目的:

在暴露于马辐射后,研究生物炭的结构和热发光 (TL) 捕获参数.
为了评估生物炭作为被动TL剂量计的潜力.

主要方法:

使用已建立的模型 (初始上升,峰值形状,曲线拟合) 分析TL光曲线,以确定动态顺序,激活能量和频率因子.
使用扫描电子显微镜与能量分散式X射线光谱 (SEM-EDX),拉曼光谱和X射线衍射 (XRD) 的结构和形态特征.
Tmax-Tstop实验用于识别发光曲线中的子峰.

主要成果:

计算的几何系数表明陈的一般顺序运动模型对生物炭的适用性.
激活能量和频率因子表明生物炭中适度稳定的捕获中心,适合TL剂量测量.
结构分析 (SEM-EDX,Raman,XRD) 揭示了剂量依赖的微结构损伤,缺陷生成和晶体尺寸变化与玛辐射.

结论:

生物炭具有稳定的捕获中心,并表现出辐射诱导的结构变化,支持其可靠的被动TL剂量测量潜力.
该材料显示了有效的电荷保留和有效的载体释放,这对于剂量测量应用至关重要.

关键词:

低成本的生物炭是一种生物炭.拉曼光谱法拉曼光谱法拉曼光谱法这就是SEM-EDXX.结构研究结构研究陷的参数陷参数在X射线中,X射线的衍射效果是不同的.

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