Detecting 6 MV X-rays using an organic photovoltaic device

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• 作者：James W. Kingsley ; Andrew J. Pearson ; Lee Harris ; Steven J. Weston ; David G. Lidzey
• 关键词：Organic photovoltaic ; X-ray ; P3HT ; PCBM
• 刊名：Organic Electronics
• 出版年：2009
• 出版时间：September 2009
• 年：2009
• 卷：10
• 期：6
• 页码：1170-1173
• 全文大小：277 K

文摘

An organic photovoltaic (OPV) device has been used in conjunction with a flexible inorganic phosphor to produce a radiation tolerant, efficient and linear detector for 6 MV X-rays. The OPVs were based on a blend of poly(3-hexylthiophene-2,5-diyl) (P3HT) and phenyl-C61-butyric acid methyl ester (PCBM). We show that the devices have a sensitivity an order of magnitude higher than a commercial silicon detector used as a reference. Exposure to 360 Grays of radiation resulted in a small (2 % ) degradation in performance demonstrating that these detectors have the potential to be used as flexible, real-time, in vivo dosimeters for oncology treatments.