研究伴随粒子成像技术(API), 就必须研制带有伴随粒子探测器的伴随粒子靶管, 因而对D-T反应及其产物中子与α粒子的关系、伴随α粒子探测器及其输出电路等关键技术进行了研究。综合考虑不同类型的D-T中子发生器, 制作了一个相对可靠、安全的D-T中子发生器。通过实验测试了多阳极光电倍增管(PSPMT)及其两种输出电路的性能, 证明了SCDC输出电路路具有比DPC输出电更小的畸变和更高的位置分辨。实验验证了第一代带伴随粒子探测器的伴随粒子靶管的设计方案的可行性, 测得伴随α粒子与中子在时间和位置上的关联, 中子角度不确定度为7°, 与理论相符。

In order to study the associated particle imaging technique, it is necessary to develop the first-generation associated particle tube with the associated particle detector. Therefore, the key techniques, such as D-T generator, the relationship between neutrons and alpha particles in D-T reaction, associated particle detector and readout circuit, are studied. The performance of the position sensitive photomultiplier (PSPMT)and two readout circuits are tested in the experiment and design of the first-generation associated particle tube with the associated particle detector. It is proved that the SCDC readout circuit has smaller distortion and higher position resolution than the DPC readout circuit. The association between alpha particles and neutrons in time and position is measured, and the neutron angle uncertainty is about 7°, which is consistent with the theory ethical value.