【摘要】 针对迴旋加速器加速相位的不稳定,研制了频率自动微调系统,并用靶上二体事件单能粒子的时间线谱作监控修复信号,减小了迴旋加速器等系统的不稳定而带来的时间幌动,将迴旋加速器上谱仪鉴别粒子的时间分辨降低到<3ns。更多还原

【Abstract】 Particle identification system by time of flight technique in three body reac-tion spectrometer is reconstructed at IAE cyclotron facility. A automatic frequencytrimming system is developed to reduce the instability of the accelerating phase inthe cyclotron. Besides single peak in time of flight spectrum of monoenergoticparticles from specific two body reaction is used to monitor the shift of time offlight spectra from the three body reaction and to correct it accordingly. Asa result the time resolution of the spectrometer routinely obtained is less than3ns.更多还原