Development of low energy neutron spectrometer for accelerator based neutron source for BNCT

BNCT加速器中子源低能中子能谱仪的研制

• 批准号: 19360429
• 负责人: MURATA Isao
• 金额: $ 7.74万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2007
• 资助国家: 日本
• 起止时间: 2007 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19360429/
• 关键词: BNCT; 熱外中性子; 加速器; スペクトロメータ; 中性子

A new low-energy neutron spectrometer for accelerator based neutron source (ABNS) for BNCT has been developed. For BNCT, it is a crucial issue to characterize the neutron field especially for ABNS. However, measurement of epi-thermal neutrons is not straightforward. In this study, using a position sensitive proportional counter as its one edge of the two is an entrance window of neutrons, detection depth distribution is measured. The measured detection depth distribution is converted to the neutron energy spectrum. Prototype detectors were produced to confirm the feasibility to measure the neutron spectrum in energies from thermal to epi-thermal region.

为BNCT研制了一种新型加速器中子源低能中子能谱仪。对于BNCT来说，中子场的表征是一个关键问题，特别是对于ABNS而言。然而，外热中子的测量并不简单。本研究利用位置敏感比例计数器，利用其两端的一条边是中子的入口窗口，测量探测深度分布。将测得的探测深度分布转换为中子能谱。制作了原型探测器，以证实在热区到外热区能量范围内测量中子能谱的可行性。

项目成果

A New Low Energy Neutron Spectrometer Based on Position Sensitive Proportional Counter for Accelerator Based Neutron Source

基于加速中子源位置敏感正比计数器的新型低能中子谱仪

• 发表时间: 2009
• 期刊: Nucl.Technol 168
• 作者: I. Murata;H. Miyamaru;I. Kato;S. Yoshida;Y. Mori
• 通讯作者: Y. Mori

On Accelerator Based Neutron Sources and Neutron Field Characterization with Low Energy Neutron Spectrometer Based on Position Sensitive ^3He Counter

基于位置敏感^3He计数器的加速器中子源及低能中子谱仪中子场表征

• 发表时间: 2009
• 期刊: Applied Radiation and Isotopes 67
• 作者: I. Murata;H. Miyamaru;I. Kato;Y. Mori
• 通讯作者: Y. Mori

Effectiveness of boron neutron capture therapy for recurrent head and neck malignancies

• DOI: 10.1016/j.apradiso.2009.03.103
• 发表时间: 2009-07-01
• 期刊: APPLIED RADIATION AND ISOTOPES
• 影响因子: 1.6
• 作者: Kato, Itsuro;Fujita, Yusei;Ono, Koji
• 通讯作者: Ono, Koji

Thermal/epi-thermal neutron spectrometer with a ^3He position sensitive proportional counter

带有 ^3He 位置敏感正比计数器的热/超热中子能谱仪

• 发表时间: 2010
• 作者: M.Ito;I.Murata
• 通讯作者: I.Murata

Low Energy Neutron Spectrometer Using Position Sensitive Proportional Counter -Feasibility Study Based on Numerical Analysis-

使用位置敏感比例计数器的低能中子谱仪-基于数值分析的可行性研究-

• 发表时间: 2008
• 期刊: Nucl. Instrum. Meth. in Phys. Res. A 589
• 作者: I. Murata;H. Miyamaru
• 通讯作者: H. Miyamaru