Neutron characterization analysis of the negative ion-based neutral beam verification facility for CFETR

doi:10.1016/j.fusengdes.2021.112844

HFCAS OpenIR

	Neutron characterization analysis of the negative ion-based neutral beam verification facility for CFETR
	Chen, Yuqing; Wang, Ji; Wu, Bin; Yang, Zhen; Li, Jun; Wang, Jinfang; Liang, Lizhen; Zhang, Hong; Xie, Yuanlai
	2021-12-01
发表期刊	FUSION ENGINEERING AND DESIGN
ISSN	0920-3796
通讯作者	Wang, Ji(wangji@ipp.ac.cn)
摘要	Neutral beam injection heating with negative ion source is one of the important auxiliary heating system to achieve the high parameter steady-state operation goal for CFETR. A Negative ion-based Neutral Beam Verification Facility (NNBVF), a conceptual design for testing the engineering feasibility of neutral beam injection systems, is proposed for the Chinese Fusion Engineering Test Reactor (CFETR). The neutral-beam injectors used for CFETR will operate with deuterium. Inevitably, a large number of neutrons are generated between beam deuterons and deuterons implanted in the calorimeter. Neutron source is one of the important input data for radiation analysis. The neutron characterization on the calorimeter surface were explored by using a multi aperture Gaussian divergence model and the local mixing model. The total neutron intensity reach up to 1.2 x 10(14) n/s for 400 keV deuteron beam. Initial results revealed that the aspect ratio of the neutron beam profile decreases with increasing beam divergence. The shape of the neutron profile on the calorimeter surface remains the same for the beam density distributions. This implies the neutron intensity emitted from the target is suitable for the beam density distribution diagnostic applications.
关键词	CFETR NNBVF Neutron emission Gaussian divergence
DOI	10.1016/j.fusengdes.2021.112844
关键词[WOS]	DESIGN
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[11705229] ; National Natural Science Foundation of China[11905142] ; National Natural Science Foundation of China[11875290] ; National Natural Science Foundation of China[21777165] ; National Key R&D Program of China[2017YFE300101] ; National Key R&D Program of China[2017YFE300103] ; National Key R&D Program of China[2017YFE300503] ; Collaborative Innovation Program of Hefei Science Center, CAS[2019HSC-CIP015] ; Collaborative Innovation Program of Hefei Science Center, CAS[2020HSCCIP016]
项目资助者	National Natural Science Foundation of China ; National Key R&D Program of China ; Collaborative Innovation Program of Hefei Science Center, CAS
WOS研究方向	Nuclear Science & Technology
WOS类目	Nuclear Science & Technology
WOS记录号	WOS:000709543700001
出版者	ELSEVIER SCIENCE SA
引用统计
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/125751
专题	中国科学院合肥物质科学研究院
通讯作者	Wang, Ji
作者单位	Chinese Acad Sci, Inst Plasma Phys, POB 1126, Hefei 230031, Peoples R China
第一作者单位	中科院等离子体物理研究所
通讯作者单位	中科院等离子体物理研究所
推荐引用方式 GB/T 7714	Chen, Yuqing,Wang, Ji,Wu, Bin,et al. Neutron characterization analysis of the negative ion-based neutral beam verification facility for CFETR[J]. FUSION ENGINEERING AND DESIGN,2021,173.
APA	Chen, Yuqing.,Wang, Ji.,Wu, Bin.,Yang, Zhen.,Li, Jun.,...&Xie, Yuanlai.(2021).Neutron characterization analysis of the negative ion-based neutral beam verification facility for CFETR.FUSION ENGINEERING AND DESIGN,173.
MLA	Chen, Yuqing,et al."Neutron characterization analysis of the negative ion-based neutral beam verification facility for CFETR".FUSION ENGINEERING AND DESIGN 173(2021).