硼-10是重要的核材料。硼-10与快中子最重要的带电粒子出射反应道是n+10B→t+α+α三体反应。该反应有两个尚待解决的难点测量问题，即截面测量误差大和反应中间过程不清楚。时间投影室是当今气体探测器R&D的前沿。本项目首次提出使用时间投影室测量硼-10三体反应的实验方法，以解决上述两个难点测量问题。.为发展基于时间投影室的硼-10三体反应测量方法，首要的是通过理论模拟研究测量技术细节以建立系统而科学的实验方案。本项目采用数值方法从探测器结构设计、物理过程模拟和实验数据分析方法三个方面开展研究。时间投影室设计为双腔室结构以满足硼-10薄膜固体靶测量需求；开发一套完整的模拟软件，模拟时间投影室工作时的物理过程和信号数据输出；建立实验数据分析方法，解决本底扣除和末态粒子甄别等问题，以降低截面计算误差、分析反应中间过程。本项目的研究成果将为硼-10三体反应的时间投影室测量实验奠定坚实的基础。

Boron-10 is one of the most important nuclear materials. The three-body reaction n+10B→t+α+α is the most important charged-particle emitted reaction for boron-10 and fast neutrons with energy of several MeV. There are two questions in the experiment study of the reaction, which are the large measurement error of the cross sections and the uncertainty of the intermediate state of the reaction. The time projection chamber (TPC) is the international R&D frontier of gas detector. The present project first proposes to measure the boron-10 three-body reaction using the TPC detector to solve the existing two questions..In order to develop the method of the measurement of boron-10 three-body reaction using the TPC detector, the first thing to do is to analysis the details of the measurement technology and establish a systematic and scientific experiment plan through the theoretical simulation. And for this we carry out the present research from three aspects which are the design of the detector structure, simulation of the physical processes of the detector and the experimental data analysis method. The detector has double chambers with symmetric structure which could work with boron-10 thin-film solid target. A simulation software will be developed to study the physical processes of the present TPC detector when it works, as well as the signal data output of the detector. The experiment data analysis method will be established to do the background rejection and discrimination of the final state particles, and then to reduce the calculation errors of the cross section and analysis the reaction intermediate states. The research results will lay a strong foundation for the measurement experiment of the boron-10 three-body reaction using the time projection chamber.