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Acta Oncologica Volume 58, 2019 - Issue 12
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LETTERS TO THE EDITOR: RADIOTHERAPY

Dosimetric effect of the low dose envelope associated with different beam models for carbon-ion spot scanning beam delivery

Hui ZhangInstitute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China; ;Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, China; ;Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou, China; ;School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, ChinaView further author information
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Tianyuan DaiInstitute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China; ;Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, China; ;Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou, China; ;School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, ChinaView further author information
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Xinguo LiuInstitute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China; ;Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, China; ;Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou, China; ;School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, ChinaView further author information
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Weiqiang ChenInstitute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China; ;Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, China; ;Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou, China; ;School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, ChinaView further author information
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Yuanyuan MaInstitute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China; ;Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, China; ;Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou, China; ;School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, ChinaView further author information
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Pengbo HeInstitute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China; ;Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, China; ;Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou, China; ;School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, ChinaView further author information
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Guosheng ShenInstitute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China; ;Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, China; ;Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou, China; ;School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, ChinaView further author information
,
Ping YuanInstitute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China; View further author information
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Zhongying DaiInstitute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China; ;Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, China; ;Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou, China; ;School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, ChinaCorrespondence[email protected]
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Qiang LiInstitute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China; ;Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, China; ;Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou, China; ;School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, ChinaCorrespondence[email protected]
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Pages 1790-1793 | Received 16 Dec 2018, Accepted 24 Jul 2019, Published online: 01 Aug 2019

Figures & data

Table 1. Comparison of the accuracy of calculations with the single (SG), double (DG), triple Gaussian (TG) models and the double Gaussian-logistic (DG-L) one in the plateau, peak and the tail regions for the spherical target volumes in diameters of 3 cm, 5 cm and 8 cm located at the depth of 150.5 mm and for the spherical target volumes in diameter of 3 cm, located at the depths of 114.5 mm, 150.5 mm and 186.5 mm.

Table 2. The calculation accuracy improvement using the double Gaussian-logistic model (DG-L) compared with the single (SG), double (DG) and triple Gaussian (TG) models in the center of SOBP for homocentric spherical target volumes with different diameters and for spherical target volumes in diameter of 3 mm located at various depths.

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