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题名: Magnetic Resonance Imaging Study of New PAGAT Polymer Gel Dosimeter
作者: Zhao Yun; He Cheng-Fa; Liu Yan; Yang Jin-Jun; Wei Ping-Qiang; Lan Bo; Cui Jiang-Wei; Fei Wu-Xiong; Li Mao-Shun; Wang Fei
关键词: Amides ; Chlorine compounds ; Dosimeters ; Gels ; Hydrogels ; Magnetic resonance imaging ; Methanol ; Polymers ; Resonance
刊名: Atomic Energy Science and Technology
发表日期: 2011
卷: 45, 期:3, 页:360-364
资助者: 国家自然科学基金资助项目
摘要: 使用丙烯酰胺、明胶、交联剂、除氧剂和甲醛等在常氧条件下制备出一种新型的PAGAT聚合物凝胶剂量计。实验结果表明:剂量计的磁共振横向弛豫率随吸收剂量的增加而增大,经计算,得出了剂量计的探测下限;剂量计样品的批均匀性好于3.2%,且剂量响应在0.05~1.00Gy/s之间基本与剂量率无关。此外,使用该剂量计对异质界面剂量分布的测量结果以及剂量增强效应进行了分析。
英文摘要: A new type of PAGAT polymer gel dosimeter, containing acrylamide, gelatin, N, N'-methylene-bisacrylamide (BIS), tetrakis (hydroxymethyl) phosphonium chloride (THPC) and formaldehyde, was prepared under normal atmospheric conditions. The results show that its transverse relaxation ratio increases with the absorbed dose and its minimum detection limit is given. The dosimeter has good uniformity of one batch (better than 3.2%) and negligible dose-rate dependence in the range of 0.05-1.00 Gy/s. Using the gel dosimeter, the dose distribution of a heterogeneous interface was obtained and the dose enhancement effect was analyzed.
内容类型: 期刊论文
URI标识: http://ir.xjipc.cas.cn/handle/365002/1428
Appears in Collections:材料物理与化学研究室_期刊论文

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作者单位: Xinjiang Technical Institute of Physics & Chemistry, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, China;CTMR Department, The Fifth Teaching Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830011, China;CTMR Department, The Fifth Teaching Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830011, China

Recommended Citation:
Zhao Yun,He Cheng-Fa,Liu Yan,et al. Magnetic Resonance Imaging Study of New PAGAT Polymer Gel Dosimeter[J]. Atomic Energy Science and Technology,2011,45(3):360-364.
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文件名: 新型PAGAT聚合物凝胶剂量计的磁共振成像研究.pdf
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