Optimization of target, moderator, and collimator in the accelerator-based boron neutron capture therapy system: A Monte Carlo study
The aim of this study was to optimize the target, moderator, and collimator (TMC) in a neutron beam generator for the accelerator-based BNCT (A-BNCT) system. The optimization employed the Monte Carlo Neutron and Photon (MCNP) simulation. The optimal geometry for the target was decided as the one wit...
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doaj-684c5c4be10745dea30422f0f57794252021-05-20T07:48:04ZengElsevierNuclear Engineering and Technology1738-57332021-06-0153619701978Optimization of target, moderator, and collimator in the accelerator-based boron neutron capture therapy system: A Monte Carlo studyBo-Wi Cheon0Dohyeon Yoo1Hyojun Park2Hyun Cheol Lee3Wook-Geun Shin4Hyun Joon Choi5Bong Hwan Hong6Heejun Chung7Chul Hee Min8Department of Radiation Convergence Engineering, Yonsei University, 26493, Wonju, South KoreaDepartment of Radiation Convergence Engineering, Yonsei University, 26493, Wonju, South Korea; Korea Institute of Radiological and Medical Science, 01812, Seoul, South Korea; The Korea Institute of Nuclear Nonproliferation and Control, 34054, Daejeon, South Korea; Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, 02114, Boston, USA; Department of Radiation Oncology, Wonju Severance Christian Hospital, 26426, Wonju, South KoreaDepartment of Radiation Convergence Engineering, Yonsei University, 26493, Wonju, South KoreaDepartment of Radiation Convergence Engineering, Yonsei University, 26493, Wonju, South KoreaDepartment of Radiation Convergence Engineering, Yonsei University, 26493, Wonju, South KoreaDepartment of Radiation Convergence Engineering, Yonsei University, 26493, Wonju, South Korea; Korea Institute of Radiological and Medical Science, 01812, Seoul, South Korea; The Korea Institute of Nuclear Nonproliferation and Control, 34054, Daejeon, South Korea; Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, 02114, Boston, USA; Department of Radiation Oncology, Wonju Severance Christian Hospital, 26426, Wonju, South KoreaKorea Institute of Radiological and Medical Science, 01812, Seoul, South KoreaThe Korea Institute of Nuclear Nonproliferation and Control, 34054, Daejeon, South KoreaDepartment of Radiation Convergence Engineering, Yonsei University, 26493, Wonju, South Korea; Corresponding author.The aim of this study was to optimize the target, moderator, and collimator (TMC) in a neutron beam generator for the accelerator-based BNCT (A-BNCT) system. The optimization employed the Monte Carlo Neutron and Photon (MCNP) simulation. The optimal geometry for the target was decided as the one with the highest neutron flux among nominates, which were called as angled, rib, and tube in this study. The moderator was optimized in terms of consisting material to produce appropriate neutron energy distribution for the treatment. The optimization of the collimator, which wrapped around the target, was carried out by deciding the material to effectively prevent the leakage radiations. As results, characteristic of the neutron beam from the optimized TMC was compared to the recommendation by the International Atomic Energy Agent (IAEA). The tube type target showed the highest neutron flux among nominates. The optimal material for the moderator and collimator were combination of Fluental (Al203+AlF3) with 60Ni filter and lead, respectively. The optimized TMC satisfied the IAEA recommendations such as the minimum production rate of epithermal neutrons from thermal neutrons: that was 2.5 times higher. The results can be used as source terms for shielding designs of treatment rooms.http://www.sciencedirect.com/science/article/pii/S1738573320309530Boron Neutron Capture TherapyTMCMonte CarloMCNPOptimization |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Bo-Wi Cheon Dohyeon Yoo Hyojun Park Hyun Cheol Lee Wook-Geun Shin Hyun Joon Choi Bong Hwan Hong Heejun Chung Chul Hee Min |
spellingShingle |
Bo-Wi Cheon Dohyeon Yoo Hyojun Park Hyun Cheol Lee Wook-Geun Shin Hyun Joon Choi Bong Hwan Hong Heejun Chung Chul Hee Min Optimization of target, moderator, and collimator in the accelerator-based boron neutron capture therapy system: A Monte Carlo study Nuclear Engineering and Technology Boron Neutron Capture Therapy TMC Monte Carlo MCNP Optimization |
author_facet |
Bo-Wi Cheon Dohyeon Yoo Hyojun Park Hyun Cheol Lee Wook-Geun Shin Hyun Joon Choi Bong Hwan Hong Heejun Chung Chul Hee Min |
author_sort |
Bo-Wi Cheon |
title |
Optimization of target, moderator, and collimator in the accelerator-based boron neutron capture therapy system: A Monte Carlo study |
title_short |
Optimization of target, moderator, and collimator in the accelerator-based boron neutron capture therapy system: A Monte Carlo study |
title_full |
Optimization of target, moderator, and collimator in the accelerator-based boron neutron capture therapy system: A Monte Carlo study |
title_fullStr |
Optimization of target, moderator, and collimator in the accelerator-based boron neutron capture therapy system: A Monte Carlo study |
title_full_unstemmed |
Optimization of target, moderator, and collimator in the accelerator-based boron neutron capture therapy system: A Monte Carlo study |
title_sort |
optimization of target, moderator, and collimator in the accelerator-based boron neutron capture therapy system: a monte carlo study |
publisher |
Elsevier |
series |
Nuclear Engineering and Technology |
issn |
1738-5733 |
publishDate |
2021-06-01 |
description |
The aim of this study was to optimize the target, moderator, and collimator (TMC) in a neutron beam generator for the accelerator-based BNCT (A-BNCT) system. The optimization employed the Monte Carlo Neutron and Photon (MCNP) simulation. The optimal geometry for the target was decided as the one with the highest neutron flux among nominates, which were called as angled, rib, and tube in this study. The moderator was optimized in terms of consisting material to produce appropriate neutron energy distribution for the treatment. The optimization of the collimator, which wrapped around the target, was carried out by deciding the material to effectively prevent the leakage radiations. As results, characteristic of the neutron beam from the optimized TMC was compared to the recommendation by the International Atomic Energy Agent (IAEA). The tube type target showed the highest neutron flux among nominates. The optimal material for the moderator and collimator were combination of Fluental (Al203+AlF3) with 60Ni filter and lead, respectively. The optimized TMC satisfied the IAEA recommendations such as the minimum production rate of epithermal neutrons from thermal neutrons: that was 2.5 times higher. The results can be used as source terms for shielding designs of treatment rooms. |
topic |
Boron Neutron Capture Therapy TMC Monte Carlo MCNP Optimization |
url |
http://www.sciencedirect.com/science/article/pii/S1738573320309530 |
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