Response Function of Active Thermal Neutron Detector For Boron Neutron Capture Therapy Using Back-Illuminated Thin Si PIN Diode
Response Function of Active Thermal Neutron Detector For Boron Neutron Capture Therapy Using Back-Illuminated Thin Si PIN Diode
复制标题
使用背照式薄硅 PIN 二极管进行硼中子俘获治疗的主动热中子探测器的响应函数
DOI：
10.1109/tns.2023.3249823
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发表时间：
2023
影响因子：
1.8
通讯作者：
Nakamura Takashi
中科院分区：
文献类型：
--
作者：
Takada Masashi;Masuda Akihiko;Narita Masataka;Matsumoto Tetsuro;Nunomiya Tomoya;Aoyama Kei;Abe Yohei;Nakamura Takashi
研制了一种氟化锂(liff)-硅（Si）基中子探测器，用于实时测量硼中子俘获治疗（BNCT）中的中子束。在日本的国家标准中子场测量了热中子的探测效率，并使用蒙特卡罗模拟代码进行了模拟，以评估BNCT中子的绝对影响率。模拟中子探测效率与实验结果吻合良好，实验误差在3%以内。模拟结果较好地再现了6Li(n,t)4He反应产生的氚和α粒子峰、空气中（n,p）反应产生的质子峰以及掺杂硼的中子俘获反应产生的α粒子分布。根据实验和仿真结果对有源BNCT中子探测器进行了表征。
A lithium fluoride (LiF)-silicon (Si)-based neutron detector was developed for real-time measurement of neutron beams for boron neutron capture therapy (BNCT). Detection efficiencies for thermal neutrons were measured at the national standard neutron field in Japan and simulated using a Monte Carlo simulation code to evaluate the absolute BNCT neutron fluence rates. The simulation neutron detection efficiencies agreed excellently with the experimental results, within an experimental error of 3%. The simulation results reproduced well the peaks of tritons and alpha particles emitted from the 6Li(n,t)4He reaction, peak of the protons produced by the(n,p)reaction in air, and distribution of alpha particles produced by the neutron capture reactions of dopant boron. The active BNCT neutron detector was characterized based on the experimental and simulation results.