Neutron Generation from a 24 MV Medical Linac.
- Author:
Jeong Ok LEE
1
;
Dong Hyeok JEONG
;
Jeong Ku KANG
Author Information
1. Department of Radiotechnology, Wonkwang Health Science College, Korea. jolee@wkhc.ac.kr
- Publication Type:Original Article
- Keywords:
Neutron;
MCNPX;
LINAC
- MeSH:
Head;
Neutrons*;
Photons;
Water
- From:Korean Journal of Medical Physics
2005;16(2):97-103
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
The energy spectra and dose calculations were performed for secondary neutrons from a 24 MV LINAC using MCNPX code (V2, 4, 0). The energy spectra for neutrons and photons emitted from the LINAC head, and absorbed dose to water were calculated in water phantom. The absorbed doses calculated with Monte Carlo were 0.66~0.35 mGy/photon Gy at the surface to d=5 cm, and calculated with interaction data was 0.52 mGy/photon Gy at the depth of electron equilibrium in water. We have shown that this work can be applied to dose estimation of neutrons from high energy LINAC through the comparison of our results with other results.
