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논문 기본 정보

자료유형
학술저널
저자정보
Oh, Se-Yeol (Department of Bio-industrial Machinery Engineering, Pusan National University) Kim, Jongsoon (Department of Bio-industrial Machinery Engineering, Pusan National University) Kwon, Soon-Hong (Department of Bio-industrial Machinery Engineering, Pusan National University) Chung, Sung-Won (Department of Bio-industrial Machinery Engineering, Pusan National University) Kwon, Soon-Goo (Department of Bio-industrial Machinery Engineering, Pusan National University) Park, Jong-Min (Department of Bio-industrial Machinery Engineering, Pusan National University) Choi, Won-Sik (Department of Bio-industrial Machinery Engineering, Pusan National University)
저널정보
한국농업기계학회 바이오시스템공학(구 한국농업기계학회지) 바이오시스템공학 제39권 제3호
발행연도
2014.1
수록면
205 - 214 (10page)

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Purpose: Phytosanitary irradiation treatment can effectively control regulated pests while maintaining produce quality. The objective of this study was to establish the best irradiation treatment for mangosteen, a popular tropical fruit, using a Monte Carlo simulation. Methods: Magnetic resonance image (MRI) data were used to generate a 3-D geometry to simulate dose distributions in a mangosteen using a radiation transport code (MCNP5). Microsoft Excel with visual basic application (VBA) was used to divide the image data into seed, flesh, and rind. Radiation energies used for the simulation were 10 MeV (high-energy) and 1.35 MeV (low-energy) for the electron beam, 5 MeV for X-rays, and 1.25 MeV for gamma rays from Co-60. Results: At 5 MeV X-rays and 1.25 MeV gamma rays, all areas (seeds, flesh, and rind) were irradiated ranging from 0.3 ~ 0.7 kGy. The average doses decreased as the number of fruit increased. For a 10 MeV electron beam, the dose distribution was biased: the dose for the rind where the electrons entered was $0.45{\pm}0.03$ kGy and the other side was $0.24 {\pm}0.10$ kGy. Use of an electron kinetic energy absorber improved the dose distribution in mangosteens. For the 1.35 MeV electron beam, the dose was shown only in the rind on the irradiated side; no significant dose was found in the flesh or seeds. One rotation of the fruit while in front of the beam improved the dose distribution around the entire rind. Conclusion: These results are invaluable for determining the ideal irradiation conditions for phytosanitary irradiation treatment of tropical fruit.

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