Radiation Oncology Journal
- Volume 8 Issue 1
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- Pages.125-131
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- 1990
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- 2234-1900(pISSN)
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- 2234-3156(eISSN)
Dose Attenuation in the Mid-Cranial Fossa with 6 MV Photon Beam Irradiations
6 MV X-선 조사시 중두개와에서의 선량감쇠
- Park, Jeong-Ho (Deaprtment of Radiation Oncology, College of Medicine, Keimyung University) ;
- Choi, Tae-Jin (Deaprtment of Radiation Oncology, College of Medicine, Keimyung University) ;
- Kim, Ok-Bae (Deaprtment of Radiation Oncology, College of Medicine, Keimyung University)
- Published : 1990.06.01
Abstract
In X-ray irradiation, dose distribution depends on multiple parameters, one of them being tissue inhomogeneity to change the dose significantly. considerable dose attenuation through the mid-cranial fossa is expected because of various bony structures in it. Dose distribution around the mid-cranial fossa, following irradiation with 6 MV photon beam, was measured with LiF TLD micro-rod, and compared with the expected dose inthe same sites. In our calculation with
방사선조사시 선량분포에 영향을 미치는 여러가지 요소들 중에서 조직불균등성은 선량을 상당히 변화시킨다. 특히, 중뇌강은 여러골조직으로 구성되어 있어 조직 불균등성에 따른 상당한 선랑감쇠가 예상된다. 6 MV X-선 조사후 중두개와에서의 선량분포측정은 LiF TLD 소자를 이용하였으며 같은 측정장소에서, 계산에 의한 예상선량과 실측선량의 비교를 시도하였다. 계산에 의하면, 골조직 1 cm당 예상선량감쇠는