고에너지 엑스선의 선속평탄여과판이 조사야의 축이탈비 선량 변화에 미치는 영향
High Energy X-ray Flattening Filter is Irradiated with OAR Effect on Dose Change
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In order to evaluate the usefulness of whether or not to use of high energy x-rayFlattening Filter, we analyzed dose by comparing the change of irradiation surface and the off-axissize at the center. From the results of FF (Flattening filter) and FFF (Flattening filter free) of 6 MVenergy, the dose decreased as the distance of FFF from the center plane. FFF also showed low doseto protect normal tissue around the tumor. FFF was higher near the skin surface than FF, and thedose was higher when the irradiation surface was smaller. FFF can be used to treat radiation thatcan focus on optimizing tumor dose and minimizing peripheral dose when irradiated.
Abstract
In order to evaluate the usefulness of whether or not to use of high energy x-rayFlattening Filter, we analyzed dose by comparing the change of irradiation surface and the off-axissize at the center. From the results of FF (Flattening filter) and FFF (Flattening filter free) of 6 MVenergy, the dose decreased as the distance of FFF from the center plane. FFF also showed low doseto protect normal tissue around the tumor. FFF was higher near the skin surface than FF, and thedose was higher when the irradiation surface was smaller. FFF can be used to treat radiation thatcan focus on optimizing tumor dose and minimizing peripheral dose when irradiated.
참고문헌 (12)
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