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Title: Neutron contamination of Varian Clinac iX 10 MV photon beam using Monte Carlo simulation
Authors: Yani, S.
Tursinah, R.
Rhani, M. F.
Soh, Roger Cai Xiang
Haryanto, F.
Arif, I.
Keywords: Monte Carlo Simulation
Neutron Contamination
Issue Date: 2016
Source: Yani, S., Tursinah, R., Rhani, M. F., Soh, R. C. X., Haryanto, F., & Arif, I. (2016). Neutron contamination of Varian Clinac iX 10 MV photon beam using Monte Carlo simulation. Journal of Physics: Conference Series, 694(1), 012020-. doi:10.1088/1742-6596/694/1/012020
Series/Report no.: Journal of Physics: Conference Series
Abstract: High energy medical accelerators are commonly used in radiotherapy to increase the effectiveness of treatments. As we know neutrons can be emitted from a medical accelerator if there is an incident of X-ray that hits any of its materials. This issue becomes a point of view of many researchers. The neutron contamination has caused many problems such as image resolution and radiation protection for patients and radio oncologists. This study concerns the simulation of neutron contamination emitted from Varian Clinac iX 10 MV using Monte Carlo code system. As neutron production process is very complex, Monte Carlo simulation with MCNPX code system was carried out to study this contamination. The design of this medical accelerator was modelled based on the actual materials and geometry. The maximum energy of photons and neutron in the scoring plane was 10.5 and 2.239 MeV, respectively. The number and energy of the particles produced depend on the depth and distance from beam axis. From these results, it is pointed out that the neutron produced by linac 10 MV photon beam in a typical treatment is not negligible.
ISSN: 1742-6588
DOI: 10.1088/1742-6596/694/1/012020
Rights: © 2016 The Author(s). Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Published under licence by IOP Publishing Ltd
Fulltext Permission: open
Fulltext Availability: With Fulltext
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