琼脂糖基类丁二炔凝胶剂量计的辐照响应行为

引用本文: 陈建, 王潇, 李磊, 曾光, 孙鹏, 黄玮. 琼脂糖基类丁二炔凝胶剂量计的辐照响应行为[J]. 物理化学学报, 2016, 32(4): 1012-1018. doi: 10.3866/PKU.WHXB201601045 shu

Citation: CHEN Jian, WANG Xiao, LI Lei, ZENG Guang, SUN Peng, HUANG Wei. Radiation Response Behavior of a Diacetylene/Agarose Gel Dosimeter[J]. Acta Physico-Chimica Sinica, 2016, 32(4): 1012-1018. doi: 10.3866/PKU.WHXB201601045 shu

琼脂糖基类丁二炔凝胶剂量计的辐照响应行为

陈建 ^1, ,
王潇 ^1,2, ,
李磊 ^1, ,
曾光 ^1, ,
孙鹏 ^3, ,
黄玮 ^{1,
,}

1.
1. 中国工程物理研究院核物理与化学研究所, 四川绵阳 621900;
2.
2. 中国工程物理研究院机械制造工艺研究所, 四川绵阳 621900;
3.
3. 四川大学原子核科学技术研究所, 成都 610064

通讯作者: 黄玮

基金项目:
中国工程物理研究院科学技术发展基金(2013B0301035) (2013B0301035)

国家自然科学基金(81301934)资助项目 (81301934)

摘要: 将类丁二炔(10,12-二十五碳二炔酸)囊泡固载于琼脂糖凝胶制备出了新型辐射变色凝胶复合凝胶材料。利用γ 射线辐照研究了所制备凝胶的辐照响应行为,结果显示:当γ 辐射剂量在500-2000 Gy内,随着剂量增加,凝胶由无色逐渐变为蓝色,颜色不断加深,采用紫外-可见光分光光度计测试其吸收光谱,发现其主要吸收峰值在660 nm 附近,且辐照前后凝胶的吸光度差值与剂量有良好线性关系(相关系数R² =0.9942)。进一步研究表明:所制备的凝胶材料对γ 射线和电子束辐照有相同的剂量响应,且无明显的能量和剂量率依赖性;凝胶的辐射后效应较弱,辐照后24 h,吸光度基本恒定;分次辐照对凝胶剂量计准确性的影响极小;凝胶在0-30℃范围内的响应性基本保持稳定;在辐照后48 h 内,并未观察到囊泡有明显扩散效应,显示出良好的稳定性。此外,琼脂糖具有价廉、无毒且易制备为任意形状凝胶的优点,因此该凝胶剂量计有望应用于真实场景的三维剂量分布测定。

关键词:

English

Radiation Response Behavior of a Diacetylene/Agarose Gel Dosimeter

CHEN Jian ^1, ,
WANG Xiao ^1,2, ,
LI Lei ^1, ,
ZENG Guang ^1, ,
SUN Peng ^3, ,
HUANG Wei ^{1,
,}

1.
1. Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, Sichuan Province, P. R. China;
2.
2. Institute of Mechanical Manufacturing Technology, China Academy of Engineering Physics, Mianyang 621900, Sichuan Province, P. R. China;
3.
3. Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, P. R. China

Corresponding author: 黄玮

Received Date: 28 September 2015
Available Online: 04 January 2016
Fund Project:
中国工程物理研究院科学技术发展基金(2013B0301035)

国家自然科学基金(81301934)资助项目

Abstract: A new diacetylene/agarose gel dosimeter composed of agarose gel as the carrier and diacetylene (10,12-pentacosadiynoic acid) vesicles as the radiochromic agent was prepared and its response behavior to γ-radiation was studied. Ultraviolet-visible spectra showed that the main absorption peak was around 660 nm, and there was a distinct linear relationship (correlation coefficient R² = 0.9942) between the absorbed dose and absorbance at 660 nm over the absorbed dose range from 500 to 2000 Gy. The diacetylene/agarose gel dosimeter exhibited the same dose response to γ-radiation and an electron beam without energy and dose rate dependency. Furthermore, the effects of temperature, diffusion, fractionated irradiation, and post-radiation on the dosimeter response were carefully investigated. The developed diacetylene/agarose gel dosimeter shows promise to measure the three-dimensional space dose within the range of 500-2000 Gy.

Key words:

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沈阳化工大学材料科学与工程学院沈阳 110142

琼脂糖基类丁二炔凝胶剂量计的辐照响应行为

通讯作者: 黄玮

English

Radiation Response Behavior of a Diacetylene/Agarose Gel Dosimeter

Corresponding author: 黄玮

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

琼脂糖基类丁二炔凝胶剂量计的辐照响应行为

通讯作者: 黄玮

English

Radiation Response Behavior of a Diacetylene/Agarose Gel Dosimeter

Corresponding author: 黄玮

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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