Multi-dimensional fiber-optic radiation sensor for ocular proton therapy dosimetry
Multi-dimensional fiber-optic radiation sensor for ocular proton therapy dosimetry
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DOI：
10.1016/j.nima.2011.09.063
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发表时间：
2012-12
影响因子：
1.4
通讯作者：
K. Jang;W. Yoo;J. Moon;Ki-Tek Han;B. Park;D. Shin;Sung Yul Park;Bongsoo Lee
中科院分区：
文献类型：
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作者：
K. Jang;W. Yoo;J. Moon;Ki-Tek Han;B. Park;D. Shin;Sung Yul Park;Bongsoo Lee
在这项研究中，我们制作了一个多维的光纤辐射传感器，它包括有机照明器，塑料光纤和水模与聚甲基丙烯酸甲酯结构的眼质子治疗剂量测定。为了表征传感器特性，我们用一维传感器阵列测量了120 MeV质子束的布拉格峰，该阵列由30个间隔为1.5mm的光纤辐射传感器组成。利用一维光纤辐射传感器在体模20 ~ 25 mm深度范围内获得了均匀的布拉格峰扩散区域。此外，利用10×3、间距为0.5mm的二维传感器阵列测量了109 MeV质子束在体模11.5mm深度处的布拉格峰。
In this study, we fabricated a multi-dimensional fiber-optic radiation sensor, which consists of organic scintillators, plastic optical fibers and a water phantom with a polymethyl methacrylate structure for the ocular proton therapy dosimetry. For the purpose of sensor characterization, we measured the spread out Bragg-peak of 120MeV proton beam using a one-dimensional sensor array, which has 30 fiber-optic radiation sensors with a 1.5mm interval. A uniform region of spread out Bragg-peak using the one-dimensional fiber-optic radiation sensor was obtained from 20 to 25mm depth of a phantom. In addition, the Bragg-peak of 109MeV proton beam was measured at the depth of 11.5mm of a phantom using a two-dimensional sensor array, which has 10×3 sensor array with a 0.5mm interval.