CAJ | 학술논문

医院中子照射器是专用于硼中子俘获治疗的核装置,所用反应堆功率为30 kW,采用~(235)U富集度为12.5%的UO_2为燃料,金属铍反射层,轻水为慢化剂和冷却剂.堆芯产生的热量靠自然循环冷却.在反应堆堆芯相对两侧分别设置了热中子束流和超热中子束流,用于治疗患者.在微堆零功率实验装置上,完成了临界质量、控制棒效率、上铍反射层效率及其它部件反应性的测量,确定了最终燃料元件的装载,为工程物理启动提供实验数据.
의원중자조사기시전용우붕중자부획치료적핵장치,소용반응퇴공솔위30 kW,채용~(235)U부집도위12.5%적UO_2위연료,금속피반사층,경수위만화제화냉각제.퇴심산생적열량고자연순배냉각.재반응퇴퇴심상대량측분별설치료열중자속류화초열중자속류,용우치료환자.재미퇴령공솔실험장치상,완성료림계질량、공제봉효솔、상피반사층효솔급기타부건반응성적측량,학정료최종연료원건적장재,위공정물리계동제공실험수거.
In-hospital neutron irradiator (IHNI) is specially designed for boron neutron capture therapy (BNCT). The reactor with thermal power 30 kW is an undermoderated reactor of pool-tank type, and UO_2 with enrichment of 12.5% as fuel, light water as coolant and moderator, and metallic beryllium as reflector. The fission heat produced by the reactor is removed by the natural convection. On the both sides of the reactor core, there are two neutron beams, one is thermal neutron beam, and the other opposite to the thermal beam, is epithermal neutron beam. The critical mass, worth of the control rod, worth of the top Be reflectors, and other component worth were measured on the zero power experiment equipment of miniature neutron source reactor.