Real-Time Optical Fiber Dosimeter Probe

被引：4
|
作者：
Croteau, Andre [1 ]
Caron, Serge [1 ]
Rink, Alexandra [2 ]
Jaffray, David [2 ]
Mermut, Ozzy [1 ]
机构：
[1] INO, 2740 Einstein St, Quebec City, PQ G1P 4S4, Canada
[2] Univ Toronto, Princess Margaret Hosp, Dept Radiat Oncol, Toronto, ON M5G 2M9, Canada
来源：
OPTICAL FIBERS, SENSORS, AND DEVICES FOR BIOMEDICAL DIAGNOSTICS AND TREATMENT XI | 2011年 / 7894卷
关键词：
Dosimetry; dosimeter probe; radiochromic thin films; real-time; optical fiber; passive; RADIOCHROMIC MEDIUM;
D O I：
10.1117/12.873619
中图分类号：
R318 [生物医学工程];
学科分类号：
0831 ;
摘要：
There is a pressing need for a passive optical fiber dosimeter probe for use in real-time monitoring of radiation dose delivered to clinical radiation therapy patients. An optical fiber probe using radiochromic material has been designed and fabricated based on a thin film of the radiochromic material on a dielectric mirror. Measurements of the net optical density vs. time before, during, and after irradiation at a rate of 500cGy/minute to a total dose of 5 Gy were performed. Net optical densities increased from 0.2 to 2.0 for radiochromic thin film thicknesses of 2 to 20 mu m, respectively.
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页数：7
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