Investigation of the dose-response linearity of guar gum for gamma-ray dosimetry at radiation processing levels using Raman spectroscopy

IF 1.4 3区 化学 Q4 CHEMISTRY, INORGANIC & NUCLEAR
Shahryar Malekie, Amir Veiskarami
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引用次数: 0

Abstract

In this experimental work, guar gum powder was exposed to gamma radiation from a 60Co source at absorbed doses of 0, 10, 30, 50, 80, 100, 150 kGy at dose rate of 1.62 Gy/s. Raman spectroscopy was applied to measure the intensity of the samples ranging from of 500–4600 cm−1. The intensity versus Raman shift was evaluated at 3800–4000 cm−1. Then the curve was fitted linearly. The slope of the lines was determined in each absorbed dose. Results indicated that the absolute values of the slope of each line were enhanced with increasing the absorbed dose. This trend was linear within the absorbed dose ranging from of 0–50 kGy, in which was saturated after 80 kGy. Results showed that guar gum can be applied as a passive dosimeter at radiation processing level.
利用拉曼光谱研究瓜尔豆胶在辐射加工级伽马射线剂量测定中的剂量-反应线性关系
在这项实验工作中,瓜尔胶粉受到来自 60Co 源的伽马辐射,吸收剂量为 0、10、30、50、80、100、150 kGy,剂量率为 1.62 Gy/s。应用拉曼光谱测量了样品在 500-4600 cm-1 范围内的强度。在 3800-4000 cm-1 处评估了强度与拉曼位移的关系。然后对曲线进行线性拟合。根据每个吸收剂量确定曲线的斜率。结果表明,随着吸收剂量的增加,每条直线斜率的绝对值都在增加。在 0-50 kGy 的吸收剂量范围内,这一趋势呈线性,在 80 kGy 后达到饱和。结果表明,瓜尔豆胶可用作辐射加工层面的被动剂量计。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Radiochimica Acta
Radiochimica Acta 化学-核科学技术
CiteScore
2.90
自引率
16.70%
发文量
78
审稿时长
6 months
期刊介绍: Radiochimica Acta publishes manuscripts encompassing chemical aspects of nuclear science and technology.
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