DESIGN IMPROVEMENT OF A LIQUID-MODERATOR-BASED NEUTRON SPECTROMETER FOR BNCT
DESIGN IMPROVEMENT OF A LIQUID-MODERATOR-BASED NEUTRON SPECTROMETER FOR BNCT
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BNCT 液体慢化剂中子能谱仪的设计改进
DOI：
10.1093/rpd/ncx237
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
Murata Isao
中科院分区：
文献类型：
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作者：
Tamaki Shingo;Kusaka Sachie;Sato Fuminobu;Murata Isao
众所周知，硼中子捕获疗法是一种有效的需要中子照射的癌症放射疗法。基于加速器的中子源产生的中子场具有各种能谱，并且有必要评估治疗场中的中子谱。然而，用于测量治疗场中的中子能谱的方法还没有很好地建立。许多研究人员正在努力改进光谱仪。为了解决这个问题，我们正在开发一种基于液体慢化剂的中子谱仪，它基于与邦纳球谱仪相同的理论。光谱仪使用液体减速剂和吸收剂。在本研究中，我们进行了设计研究，以改善以前开发的液体慢化剂为基础的中子谱仪。通过对所设计的新型光谱仪进行数值模拟，对该光谱仪的有效性进行了数值评估和验证。
Boron neutron capture therapy is known to be an effective radiation cancer therapy that requires neutron irradiation. A neutron field generated by an accelerator-based neutron source has various energy spectra, and it is necessary to evaluate the neutron spectrum in the treatment field. However, the method used to measure the neutron spectrum in the treatment field is not well established. Many researchers are making efforts to improve the spectrometers. To solve this problem, we are developing a liquid-moderator-based neutron spectrometer that is based on the same theory as that of the Bonner sphere spectrometer. The spectrometer uses a liquid moderator and absorber. In the present study, we performed a design study to improve the previously developed liquid-moderator-based neutron spectrometer. By carrying out a numerical simulation of the designed new spectrometer, we finally assessed and confirmed the validity of this spectrometer numerically.