Characteristics of Thermal Neutron Flux Distribution in a Phantom Irradiated by Epithermal Neutron Beam from Double Layer Beam Shaping Assembly (DBSA)
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چکیده
منابع مشابه
Epithermal Neutron Beam Generator Design for Bnct
BNCT is a radiotherapy modality based on the neutron capture and fission reactions that occur when boron-10 is irradiated by thermal neutrons. This reaction generates alpha and lithium that produce high density of ionizations in close to the reaction site. The concept provides high absorbed doses into the cancerous cells preserving the adjacent healthy tissues. Nowadays, the available neutron s...
متن کاملطراحی و بهینه‌سازی طیف نوترونی برای درمان تومورهای عمیق مغزی به روش BNCT با کاهش آسیب رسیده به پوست
Boron neutron capture therapy (BNCT) is an effective method for treatment of deep seated brain tumors. This method consists of two stages: injection of boron compound in the patient body, and then irradiation of the region tumors with the neutron beam. It allows for delivery of high linear energy transfer (LET) radiation (particles 4He and 7Li nuclei) to tumors at the cellular level whilst avoi...
متن کاملOptimization study for BNCT facility based on a DT neutron generator
Background: A Boron Neutron Capture Therapy (BNCT) facility, based on a DT neutron generator, with the final goal to find out a potential, alternative, solution to existing BNCT treatment facilities which are based on nuclear reactors is examined. Materials and Methods: With the aim of the MCNP4B Monte Carlo code different beam-shaping assembly (BSA) configurations were considered. Lead was sel...
متن کاملSimulation of the BNCT of Brain Tumors Using MCNP Code: Beam Designing and Dose Evaluation
Introduction BNCT is an effective method to destroy brain tumoral cells while sparing the healthy tissues. The recommended flux for epithermal neutrons is 109 n/cm2s, which has the most effectiveness on deep-seated tumors. In this paper, it is indicated that using D-T neutron source and optimizing of Beam Shaping Assembly (BSA) leads to treating brain tumors in a reasonable time where all IAEA ...
متن کاملFir 1 Epithermal Neutron Beam Model and Dose Calculation for Treatment Planning in Neutron Capture Therapy
The epithermal neutron beam model of the Finnish boron neutron capture therapy (BNCT) facility (FiR 1) was created using the two-dimensional (2D) discrete ordinates transport (DORT) code. The final design of the beam was achieved using the DORT model: the optimal thickness of the neutron moderator and the length and the thickness of the bismuth collimator of the beam were calculated. The final ...
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ژورنال
عنوان ژورنال: Pakistan Journal of Scientific & Industrial Research Series A: Physical Sciences
سال: 2019
ISSN: 2223-2559,2221-6413
DOI: 10.52763/pjsir.phys.sci.62.3.2019.167.173