Computational design and evaluation of a quad-MOSFET device for quality control of therapeutic accelerator-based neutron beams

IF 1.6 3区物理与天体物理 Q2 NUCLEAR SCIENCE & TECHNOLOGY

Radiation Measurements Pub Date : 2024-07-24 DOI:10.1016/j.radmeas.2024.107253

Klaudiusz Jakubowski , James Vohradsky , Andrew Chacon , Daniel R. Franklin , Linh T. Tran , Susanna Guatelli , Mitra Safavi-Naeini , Anatoly Rosenfeld

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引用次数: 0

Abstract

Accurate real-time monitoring of neutron beams and distinguishing between thermal, epithermal and fast neutron components in the presence of a photon background is crucial for the effectiveness of accelerator-based boron neutron capture therapy (AB-BNCT). In this work, we propose an innovative quadruple metal–oxide–semiconductor field-effect transistor (MOSFET) device for real-time, cost-effective beam quality control; one detector is kept uncovered while the other three are covered with either a B $_{4}$ C, cadmium and B $_{4}$ C or polyethylene converter.

Individual MOSFET converter configurations were optimised via Monte Carlo simulations to maximise signal selectivity across neutron energy spectra. Results demonstrate the quad-MOSFET device’s efficacy in quantifying changes in neutron flux, underscoring its potential as a useful instrument in the AB-BNCT quality control process.

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用于治疗性加速器中子束质量控制的四MOSFET装置的计算设计与评估

对中子束进行精确的实时监测，并在存在光子背景的情况下区分热中子、表观中子和快中子成分，对于基于加速器的硼中子俘获疗法（AB-BNCT）的有效性至关重要。在这项工作中，我们提出了一种创新的四重金属氧化物半导体场效应晶体管（MOSFET）装置，用于实时、经济高效地控制中子束质量；其中一个探测器保持无盖状态，而其他三个探测器则覆盖着硼中子、镉中子和硼中子或聚乙烯转换器。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Radiation Measurements 工程技术-核科学技术

CiteScore

4.10

自引率

20.00%

发文量

116

审稿时长

48 days

期刊介绍： The journal seeks to publish papers that present advances in the following areas: spontaneous and stimulated luminescence (including scintillating materials, thermoluminescence, and optically stimulated luminescence); electron spin resonance of natural and synthetic materials; the physics, design and performance of radiation measurements (including computational modelling such as electronic transport simulations); the novel basic aspects of radiation measurement in medical physics. Studies of energy-transfer phenomena, track physics and microdosimetry are also of interest to the journal. Applications relevant to the journal, particularly where they present novel detection techniques, novel analytical approaches or novel materials, include: personal dosimetry (including dosimetric quantities, active/electronic and passive monitoring techniques for photon, neutron and charged-particle exposures); environmental dosimetry (including methodological advances and predictive models related to radon, but generally excluding local survey results of radon where the main aim is to establish the radiation risk to populations); cosmic and high-energy radiation measurements (including dosimetry, space radiation effects, and single event upsets); dosimetry-based archaeological and Quaternary dating; dosimetry-based approaches to thermochronometry; accident and retrospective dosimetry (including activation detectors), and dosimetry and measurements related to medical applications.