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Characteristics of 23 MV Photon Beam from a Mevatron KD 8067 Dual Energy Linear Accelerator

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Author(s)
Ok Bae KimTae Jin ChoiYoung Hoon Kim
Keimyung Author(s)
Kim, Ok BaeChoi, Tae Jin
Department
Dept. of Radiation Oncology (방사선종양학)
Dept. of Medical Biophysics Engineering (의공학과)
Journal Title
대한치료방사선과학회지
Issued Date
1990
Volume
8
Issue
1
Keyword
23 MV photon beamTMRSMRSurface dose
Abstract
The characteristics of 23 MV photon beam have been presented with respect to clinical parameters of central axis depth dose, tissue-maximum ratis, scatter-maximum ratios, surface dose and scatter correction factors. The nominal accelerating potential was found to be 18.5+/-0.5 MV on the central axis. The half-value layer (HVL) of this photon beam was measured with narrow beam geometry from central axis, and it has been showed the thickness of 24.5 g/cm2. The tissue-maximum, ratio values have been determined from measured percentage depth dose data. In our experimental dosimetry, the surface dose of maximum showed only 9.6% of maximum dose at 10x10cm2, 100cm SSD, without blocking tray in. The TMR'S of 0x0 field size have been determined to get average 2.3% uncertainties from three different methodis; are zero effective attenuation coefficient, non-ilnear least square fil of TMR's data and effective linear attenuation coefficient from the HVL of 23 MV photon beams of dual energy linear accelerator.
Alternative Title
Mevatron KD 8067 선형가속기의 23 MV 광자선의 특성
Keimyung Author(s)(Kor)
김옥배
최태진
Publisher
School of Medicine
Citation
Ok Bae Kim et al. (1990). Characteristics of 23 MV Photon Beam from a Mevatron KD 8067 Dual Energy Linear Accelerator. 대한치료방사선과학회지, 8(1), 115–124.
Type
Article
ISSN
1225-6765
URI
https://kumel.medlib.dsmc.or.kr/handle/2015.oak/39720
Appears in Collections:
1. School of Medicine (의과대학) > Dept. of Medical Biophysics Engineering (의공학과)
1. School of Medicine (의과대학) > Dept. of Radiation Oncology (방사선종양학)
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