KMID : 0357520150380010017
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Journal of Radiological Science and Technology 2015 Volume.38 No. 1 p.17 ~ p.21
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In Pediatric Leukemia, Dose Evaluation according to the Type of Compensators in Total Body Irradiation
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Lee Dong-Yeon
Kim Chang-Soo Kim Jung-Hoon
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Abstract
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Total body irradiation(TBI) and chemotherapy are the pre-treatment method of a stem cell transplantations of the childhood leukemia. in this study, we evaluate the Quantitative human body dose prior to the treatment.
The MCNPX simulation program evaluated by changing the material of the tissue compensators with imitation material of pediatric exposure in a virtual space.
As a result, first, the average skin dose with the material of the tissue compensators of Plexiglass tissue compensators is 74.60 mGy/min, Al is 73.96 mGy/min, Cu is 72.26 mGy/min and Pb 67.90 mGy/min respectively.
Second, regardless of the tissue compensators material that organ dose were thyroid, gentile, digestive system, brain, lungs, kidneys higher in order.
Finally, the ideal distance between body compensator and the patient were 50 cm aparting each other. In conclusion, tissue compensators Al, Cu, Pb are able to replace of the currently used in Plexiglass materials.
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KEYWORD
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Pediatric Leukemia Patient, Total Body Irradiation, Simulation, Dose Evaluation
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