Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8180973 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2012 | 4 Pages |
Abstract
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 120Â MeV proton beam using a one-dimensional sensor array, which has 30 fiber-optic radiation sensors with a 1.5Â mm interval. A uniform region of spread out Bragg-peak using the one-dimensional fiber-optic radiation sensor was obtained from 20 to 25Â mm depth of a phantom. In addition, the Bragg-peak of 109Â MeV proton beam was measured at the depth of 11.5Â mm of a phantom using a two-dimensional sensor array, which has 10Ã3 sensor array with a 0.5Â mm interval.
Related Topics
Physical Sciences and Engineering
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Instrumentation
Authors
K.W. Jang, W.J. Yoo, J. Moon, K.T. Han, B.G. Park, D. Shin, S-Y. Park, B. Lee,