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학제간연구 과학기술학 뇌인지과학 기술정책 기타 복합학

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논문 기본 정보

자료유형
학술저널
저자정보
Min-Tae Kim (Hallym University) Hae-Kag Lee (Soonchunhyang University) Yeong-Cheol Heo (Hallym University) Jae-Hwan Cho (Hallym University)
저널정보
한국자기학회 Journal of Magnetics Journal of Magnetics Vol.19 No.1
발행연도
2014.3
수록면
15 - 19 (5page)

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In this study, for 6-20 MeV electron beam energy occurring in a linear accelerator, the authors attempted to investigate the relation between the effective source-skin distance and the relation between the radiation field and the effective source-skin distance. The equipment used included a 6-20 MeV electron beam from a linear accelerator, and the distance was measured by a ionization chamber targeting the solid phantom. The measurement method for the effective source-skin distance according to the size of the radiation field changes the source-skin distance (100, 105, 110, 115 cm) for the electron beam energy (6, 9, 12, 16, 20 MeV). The effective source-skin distance was measured using the method proposed by Faiz Khan, measuring the dose according to each radiation field (6 × 6, 10 × 10, 15 × 15, 20 × 20 ㎠) at the maximum dose depth (1.3, 2.05, 2.7, 2.45, 1.8 cm, respectively) of each energy. In addition, the effective source-skin distance when cut-out blocks (6 × 6, 10 × 10, 15 × 15 cm2) were used and the effective source-skin distance when they were not used, was measured and compared. The research results showed that the effective source-skin distance was increased according to the increase of the radiation field at the same amount of energy. In addition, the minimum distance was 60.4 cm when the 6 MeV electron beams were used with 6 × 6 cut-out blocks and the maximum distance was 87.2 cm when the 6 MeV electron beams were used with 20 × 20 cut-out blocks; thus, the largest difference between both of these was 26.8 cm. When comparing the before and after the using the 6 × 6 cut-out block, the difference between both was 8.2 cm in 6 MeV electron beam energy and was 2.1 cm in 20 MeV. Thus, the results showed that the difference was reduced according to an increase in the energy. In addition, in the comparative experiments performed by changing the size of the cut-out block at 6 MeV, the results showed that the source-skin distance was 8.2 cm when the size of the cut-out block was 6 × 6, 2.5 cm when the size of the cut-out block was 10 × 10, and 21.4 cm when the size of the cut-out block 15 × 15. In conclusion, it is recommended that the actual measurement is used for each energy and radiation field in the clinical dose measurement and for the measurement of the effective source-skin distance using cut-out blocks.
#electron beam #source-skin distance #energy

목차

1. Introduction
2. Subjects and Methods
3. Results
4. Discussion
References

참고문헌 (14)

참고문헌 신청
1. [학술지(정기간행물)] - 조재환 / 2012 / Quantitative Analysis of Tomotherapy, Linear-accelerator-based 3D Conformal Radiation Therapy, Intensity-modulated Radiation Therapy, and 4D Conformal Radiation Therapy / Journal of the Korean Physical Society 60 (7) : 1167 ~ 1176 google schola 2. [학술지(정기간행물)] - G. E. Yuh / 2004 / / Cancer J 10 : 386 ~ google schola 3. [학술지(정기간행물)] - S. J. Ye / 2005 / / Med. Phys 32 : 1460 ~ google schola 4. [학술지(정기간행물)] - F. Verhaegan / 2001 / / Phys. Med. Biol 46 : 757 ~ google schola 5. [학술지(정기간행물)] - D. Jette / 1992 / / Medical Physics 19 : 1241 ~ google schola

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