论文标题
LANSCE加速器设施的发展作为1兆瓦的融合原型中子源
Advancement of LANSCE Accelerator Facility as a 1-MW Fusion Prototypic Neutron Source
论文作者
论文摘要
融合原型中子源（FPN）被认为是对未来核融合反应堆材料降解的科学理解的测试床[1-3]。 FPN的主要任务是在8-11 DPA/日历年的铁样本中提供损伤率，HE/DPA比为〜10 APPM，辐射体积为50 cm3或更大，辐射温度为300-1000O C，而磁通梯度在样品平面中低于20％/cm。 Los Alamos中子科学中心（LANSCE）是FPNS项目的有吸引力的候选人。加速器设施的设计和运营长期为0.8兆瓦的梅森工厂。 LANSCE加速器复合物的现有设置几乎可以满足Fusion Neutron源站的要求。升级的加速器系统的主要功能是从开关隔间到目标组件的800 meV束能的1.25 ma连续质子束电流的安全递送，以创建1 MW的质子束功率与固体钨靶相互作用。本研究描述了现有的加速器设置以及满足FPNS项目需求所需的进一步开发。
The Fusion Prototypic Neutron Source (FPNS) is considered to be a testbed for scientific understanding of material degradation in future nuclear fusion reactors [1-3]. The primary mission of FPNS is to provide a damage rate in iron samples of 8-11 dpa/calendar year with He/dpa ratio of ~10 appm in irradiation volume of 50 cm3 or larger with irradiation temperature 300 - 1000o C and flux gradient less than 20%/cm in the plane of the sample. The Los Alamos Neutron Science Center (LANSCE) is an attractive candidate for the FPNS project. The Accelerator Facility was designed and operated for an extended period as a 0.8-MW Meson Factory. The existing setup of the LANSCE accelerator complex can nearly fulfill requirements of the fusion neutron source station. The primary function of the upgraded accelerator systems is the safe and reliable delivery of a 1.25-mA continuous proton beam current at 800-MeV beam energy from the switchyard to the target assembly to create 1 MW power of proton beam interacting with a solid tungsten target. The present study describes existing accelerator setup and further development required to meet the needs of FPNS project.
