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http://dx.doi.org/10.7742/jksr.2020.14.6.841

Evaluation of Attenuation Rate Error on Skin Dosimeter using Monte Carlo Simulation in Photon and Electron Beam Therapy  

Han, Moo-Jae (Department of Radiation Oncology, Collage of Medicine, Inje University)
Yang, Seung-Woo (Department of Radiation Oncology, Collage of Medicine, Inje University)
Heo, Seung-Uk (Department of Research Institute for Convergence of Biomedical Science and Technology, Yangsan Hospital, Pusan National University)
Bae, Sang-Il (Department of Radiation Oncology, Dongnam Institute of Radiological and Medical Sciences)
Moon, Young-Min (Department of Radiation Oncology, Dongnam Institute of Radiological and Medical Sciences)
Park, Sung-Kwang (Department of Radiation Oncology, Busan Paik Hospital, Inje University)
Kim, Jin-Young (Department of Radiation Oncology, Dongnam Institute of Radiological and Medical Sciences)
Publication Information
Journal of the Korean Society of Radiology / v.14, no.6, 2020 , pp. 841-848 More about this Journal
Abstract
In the field of radiation therapy using photon beams and electron beams, since each patient has a different sensitivity to radiation, skin side effects may occur even at the same dose. Therefore, if there is a risk of excessive dose to the skin, a dosimeter is attached to verify whether the correct dose is being investigated. However, since the skin dosimeter checks the attachment site visually by measuring a point dose, it is difficult to confirm an accurate dose distribution. As a result, the measurement and simulation errors of the material HgI2 in the 6 MV photon beam were 3.73% and 5.24%, respectively, at the minimum thickness of 25 ㎛, and the material PbI2 was 4.73% and 5.65%, respectively. On the other hand, as a result of the 6 MeV electron beam, the measurement and simulation errors of the material HgI2 were 1.35% and 1.12%, respectively, at a minimum thickness of 25 ㎛, and the material PbI2 showed relatively low attenuation error, 1.67% and 1.20%, respectively. Therefore, it was evaluated that the thickness of the photon beam within 25 ㎛ and the electron beam within 100 ㎛ is suitable to have a reduction rate error within 5%. This study presents a new research direction for a flexible dosimeter attached to the human body that is required in clinical practice and the construction conditions of a future skin dosimeter.
Keywords
Attenuation rate; Flexible; Skin dose; Photon; Electron;
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1 H. J. Lee, S. H. Bae, K. H. Cho, J. H. Jeong, S. I. Kwon, K. D. Lee, "Evaluations and comparisons of body surface doses during breast cancer treatment by tomotherapy and linac radiotherapy devices", Progress in Medical Physics, Vol 28, No. 4, pp. 218-225, 2017. http://dx.doi.org/http://dx.doi.org/10.14316/pmp.2017.28.4.218   DOI
2 K. M. Oh, M. J. Han, J. S. Kim, Y. J. Heo, K. T Kim, G. S. Cho, Y. K. Song, S. H. Cho, S. G. Heo, J. Y. Kim, S. K. Park, S. H. Nam, "Flexible X ray detector for automatic exposure control in digital radiography", Journal of Nanoscience and Nanotechnology, Vol. 16, No. 11, pp. 11473-11476, 2016. http://dx.doi.org/10.1166/jnn.2016.13533   DOI
3 H. Sun, B. Zhao, D. Yang, P. Wangyang, X. Gao, X. Zhu, "Flexible X ray detector based on sliced lead iodide crystal", physica status solidi (RRL) Rapid Research Letters, Vol. 11, No. 2, pp. 1-5, 2017. http://dx.doi.org/10.1002/pssr.201600397   DOI
4 N. E. Hartsough, J. S. Iwanczyk, E. Nygard, N. Malakhov, W. C. Barber, T. Gandhi, "Polycrystalline mercuric iodide films on CMOS readout arrays", IEEE Transactions on Nuclear Science, Vol. 56, No. 4, pp. 1810-1816, 2009. http://dx.doi.org/10.1109/TNS.2009.2023478   DOI
5 M. Zhong, L. Huang, H. X. Deng, X. Wang, B. Li, Z. Wei, J. Li, "Flexible photodetectors based on phase dependent PbI2 single crystals", Journal of materials chemistry. C, Materials for optical and electronic devices, Vol. 4, No. 27, pp. 6492-6499, 2016. http://dx.doi.org/10.1039/C6TC00918B   DOI
6 P. Andreo, Absorbed Dose Determination in External Beam Radiotherapy: An International Code of Practice for Dosimetry based on Standards of Absorbed Dose to Water (TRS 398, Vienna, Austria, 2006)
7 K. M. Oh, M. J. Han, K. T. Kim, Y. J. Heo, C. W. Moon, S. K. Park, S. H. Nam, "Development and evaluation of polycrystalline cadmium telluride dosimeters for accurate quality assurance in radiation therapy", Journal of Instrumentation, Vol. 11, No. 2, pp 1-8, 2016. http://dx.doi.org/10.1088/1748 0221/11/02/C02040   DOI
8 D. Wolff, F. Stieler, G. Welzel, F. Lorenz, A. M. Yasser, S. Mai, C. Herskind, M. Polednik, V. Steil, F. Wenz, F. Lohr, "Volumetric modulated arc therapy (VMAT) vs. serial tomotherapy, step and shoot IMRT and 3D conformal RT for treatment of prostate cancer", Radiotherapy and oncology: journal of the European Society for Therapeutic Radiology and Oncology, Vol. 93, No. 2, pp. 226-259, 2009. http://dx.doi.org/10.1016/j.radonc.2009.08.011   DOI
9 F. M. Khan, Khan's the physics of radiation therapy fifth edition. Chapter 5: interactions of ionizing radiation (Wolters Kluwer, Philadelphia, U.S.A, 1987).
10 K. T. Kim, Y. J. Heo, M. J. Han, K. M. Oh, Y. K. Lee, S. W. Kim, S. K. Park, "Development and evaluation of multi energy PbO dosimeter for quality assurance of image guide radiation therapy devices", Journal of instrumentation, Vol. 12, No. 4, pp. 1-10, 2017. http://dx.doi.org/10.1088/1748 0221/12/04/C04024   DOI
11 B. Emami, J. Lyman, A. Brown, L. Coia, M. Goitein, J. E. Munzenrider, B. Shank, L. J. Solin, M. Wesson, "Tolerance of normal tissue to therapeutic irradiation", International Journal of Radiation Oncology Biology Physics, Vol. 21, No. 1, pp. 109-122, 1991. http://dx.doi.org/10.1016/0360-3016(91)90171-Y   DOI
12 Kry SF, Smith SA, Weathers R, Stovall M. Skin dose during radiotherapy: a summary and general estimation technique. Journal of applied clinical medical physics, Vol. 13, No. 3, pp. 20-34, 2012   DOI
13 Kim J S, Jang H, Bae M J, Shim S, Jang W S, Lee S J, et al. Comparison of Skin Injury Induced by β and γ irradiation in the Minipig Model. Journal of Radiation Protection and Research, Vol. 42, No. 4, pp. 189-96, 2017   DOI
14 L. E. Court, R. B. Tishler, A. M. Allen, H. Xiang, M. Makrigiorgos, L. Chin, "Experimental evaluation of the accuracy of skin dose calculation for a commercial treatment planning system", Journal of Applied Clinical Medical Physics, Vol. 9, No. 1, pp. 29-35, 2008. https://doi.org/10.1120/jacmp.v9i1.2792   DOI
15 T. A. Reynolds, P. Higgins, "Surface dose measurements with commonly used detectors: a consistent thickness correction method", Journal of applied Clinical Medical Physics, Vol. 16, No. 5, pp. 358-366, 2015. http://dx.doi.org/10.1120/jacmp.v16i5.5572   DOI