一种新型CaF2:Gd纳米材料的制备及其热释光性能
Preparation and thermoluminescence properties of a novel CaF2: Gd nanomaterials
- 辐射研究与辐射工艺学报 2016年34卷第6期
- 作者机构：
1.南京航空航天大学核科学与工程系 南京 211106
- 作者简介：
[ "张泽群, 男, 1992年3月出生, 2014年于南京航空航天大学获学士学位, 目前为该校硕士研究生, 核技术及应用专业, 从事热释光材料研究, E-mail:404461921@qq.com", "ZHANG Zequn (male) was born in March 1992 and received his bachelor degree in Nanjing University of Aeronautics and Astronautics in 2014. Now he is a master candidate majoring in nuclear technology and application and engaging in the study of thermoluminescence materials, E-mail:404461921@qq.com" ]
张海黔, 教授, E-mail:zhanghq@nuaa.edu.cn ZHANG Haiqian, Professor, E-mail:zhanghq@nuaa.edu.cn
- 基金信息：国家自然科学基金资助项目(11575086);江苏省自然科学基金资助项目(BK20131355);江苏省高校优势学科建设工程项目资助
DOI：10.11889/j.1000-3436.2016.rrj.34.060701
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张泽群, 胡晓丹, 张伟, 等. 一种新型CaF2:Gd纳米材料的制备及其热释光性能[J]. 辐射研究与辐射工艺学报, 2016,34(6):060701-7.
Zequn ZHANG, Xiaodan HU, Wei ZHANG, et al. Preparation and thermoluminescence properties of a novel CaF2: Gd nanomaterials[J]. Journal of Radiation Research and Radiation Processing, 2016,34(6):060701-7.
张泽群, 胡晓丹, 张伟, 等. 一种新型CaF2:Gd纳米材料的制备及其热释光性能[J]. 辐射研究与辐射工艺学报, 2016,34(6):060701-7. DOI： 10.11889/j.1000-3436.2016.rrj.34.060701.
Zequn ZHANG, Xiaodan HU, Wei ZHANG, et al. Preparation and thermoluminescence properties of a novel CaF2: Gd nanomaterials[J]. Journal of Radiation Research and Radiation Processing, 2016,34(6):060701-7. DOI： 10.11889/j.1000-3436.2016.rrj.34.060701.
摘要
用水热法制备钆掺杂的氟化钙（CaF,2,：Gd）纳米材料。采用X射线衍射、扫描电子显微镜、能谱仪等方法对其进行表征，发现CaF,2,：Gd材料样品平均粒径44 nm，晶体呈立方晶系结构，样品组成元素为Ca、F、Gd。运用,T,m,-,T,stop,与CGCD（Computerized Glow Curves De-convolved）相结合的方法对发光曲线进行解谱，确定材料发光曲线的4个重叠峰分别为126、148、174、286℃，并得到了各发光峰的动力学参数。结果表明，制备的CaF,2,：Gd纳米材料对于γ射线在1~10 000 Gy内都有良好的线性剂量响应，兼顾良好的重复性和衰减性，稀土元素Gd的最优掺杂物质的量浓度为0.6%。制备的CaF,2,：Gd纳米材料可以用作高剂量γ射线测量。
Abstract
Gadolinium doped calcium fluoride (CaF,2,:Gd) nanoparticles were prepared by the hytrothermal method. X-ray diffraction (XRD), Scanning electron microscope (SEM), and Energy dispersive spectrometer (EDS) were used to characterize the nanomaterials and obtained the 44 nm average particle size, the cubic crystal and element compose (Ca, F, Gd). The combination of ,T,m,-,T,stop, and CGCD (Computerized glow curves de-convolved) were used and four overlapping peaks were found in glow curve at 126, 148, 174 and 286℃. And the kinetic parameters of the synthesized nanomaterials were also obtained. The optimal Gd mole percent was found at 0.6%. A good linear dose response was shown from 1 Gy to 10 000 Gy. The fading and repeatability of the nanoparticles were also excellent. It can be concluded that the CaF,2,:Gd nanomaterials could be employed to measure the high dose gamma radiation.
关键词
热释光水热Gd掺杂CaF2纳米材料
Keywords
ThermoluminescenceHytrothermalGadolinium doped calcium fluorideNanomaterials
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