EP-1433: Photoneutron Flux Measurement via NAA in a Radiotherapy Bunker with an 18 MV Linear Accelerator
نویسندگان
چکیده
منابع مشابه
A Monte Carlo study on Photoneutron Spectrum around Elekta SL75/25 18 MV linear accelerator
Medical linear accelerators are one of the most widespread methods for cancer treatment. Despite their advantages, unwanted photoneutrons are produced by high energy linacs. This photoneutrons are as undesired doses to patients and a significant problem for radiation protection of the staffs and patients. Photoneutrons radiological risk must be evaluated because of their high LET and range.in o...
متن کاملA Monte Carlo study on Photoneutron Spectrum around Elekta SL75/25 18 MV linear accelerator
Medical linear accelerators are one of the most widespread methods for cancer treatment. Despite their advantages, unwanted photoneutrons are produced by high energy linacs. This photoneutrons are as undesired doses to patients and a significant problem for radiation protection of the staffs and patients. Photoneutrons radiological risk must be evaluated because of their high LET and range.in o...
متن کاملPhotoneutron intensity variation with field size around radiotherapy linear accelerator 18-MeV X-ray beam
In X-ray radiotherapy accelerators, neutrons are produced mainly by ( , n) reaction when high energy X-rays interact with high Z materials of the linear accelerator head. These materials include the lead (Pb) used as shielding in the collimator, tungsten (W) target used for the production of X-rays and iron (Fe) in the accelerator head. These unwanted neutrons contaminate the therapeutic beam a...
متن کاملa monte carlo study on photoneutron spectrum around elekta sl75/25 18 mv linear accelerator
medical linear accelerators are one of the most widespread methods for cancer treatment. despite their advantages, unwanted photoneutrons are produced by high energy linacs. this photoneutrons are as undesired doses to patients and a significant problem for radiation protection of the staffs and patients. photoneutrons radiological risk must be evaluated because of their high let and range.in o...
متن کاملInvestigations of parameters affecting the photon energy spectra of an 18 MV Varian 2100C/D linear accelerator
Radiotherapy using linear accelerators is known as an effective modality for cancer treatment. The photons energy of treatment beams significantly affect the dose distribution. Therefore, it is important to accurately evaluate the photon energy spectra. In this study, MCNPX Monte Carlo code (version 2.6.0) was used to simulate an 18 MV photon beam of a Varian 2100C/D linear accelerator. By matc...
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ژورنال
عنوان ژورنال: Radiotherapy and Oncology
سال: 2017
ISSN: 0167-8140
DOI: 10.1016/s0167-8140(17)31868-6