Analysis of Photo Neutron Dose to Patient from a 15 MV Linear Accelerator
Rajesh.K.R1, R. Ganapathi Raman2
1Rajesh.K.R, Department of Physics, Noorul Islam Centre for Higher Education, Kumaracoil, Kanya Kumari (Tamil Nadu), India.
2R.Ganapathi Raman, Department of Physics, Noorul Islam Centre for Higher Education, Kumaracoil, Kanya Kumari (Tamil Nadu), India.
Manuscript received on 08 July 2019 | Revised Manuscript received on 18 August 2019 | Manuscript Published on 27 August 2019 | PP: 903-912 | Volume-8 Issue-2S4 July 2019 | Retrieval Number: B11800782S419/2019©BEIESP | DOI: 10.35940/ijrte.B1180.0782S419
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Medical Linear Accelerator produces high-intensity bremsstrahlung beam, with typical energy ranges from 4 to 18MV for treatment purposes. The materials including patient exposed to this high energy spectrum lead to a photonuclear reaction in them. In these Photon energy domains, photo neutron production (n, p, and γ, n) is the major reaction channel. This is important as Carbon, Oxygen, Hydrogen, and Nitrogen are the predominant elements in a typical human being and having low photon neutron threshold. Apart from this, the equipment involved in a radiation treatment including Head, Couch, immobilization accessories, etc contributes to photo neutron production. The present study was recorded and analyzed the photo neutron spectra due to 15 MV medical linear accelerator using CR-39 Solid State Nuclear Track Detector and image processing software.
Keywords: Solid State Nuclear Track Detector (SSNTD), CR-39(Columbia Resin #39), Chemical Etching, EXFOR, Karma Calculation.
Scope of the Article: Bio-Science and Bio-Technology