Neutronics assessments of LHCD antenna system for CFETR

doi:10.1016/j.fusengdes.2021.112877

	Neutronics assessments of LHCD antenna system for CFETR
	Wu, Qiuran 1,2; Lu, Peng 1,3; Zheng, Yu 1,2; Du, Hua 1,2; Liu, Liang 1; Zhu, Qingjun 1; Liu, Songlin 1
刊名	FUSION ENGINEERING AND DESIGN
	2021-11-01
卷号	172
关键词	CFETR LHCD antenna Neutronics Shielding performance TBR
ISSN号	0920-3796
DOI	10.1016/j.fusengdes.2021.112877
通讯作者	Lu, Peng(peng.lu@ipp.ac.cn)
英文摘要	To maintain a long-duration plasma current and obtain steady-state operation for CFETR, a non-inductive Heating and Current Drive (H&CD) system is currently under study. Lower Hybrid Current Drive (LHCD) is an important auxiliary heating system, that has good current drive efficiency and improves plasma confinement by changing the current distribution. Neutronics calculation was conducted to study the nuclear performance and shielding effectiveness. This study was performed on a CFETR 22.5 degrees model integrated with an upper-port LHCD antenna structure. The detailed 3D neutronics model was built using the computer-aided modeling platform cosVMPT, and particle transport was performed using MCNP5 with the nuclear data library FENDL-2.1. With the support of high performance variance reduction technique, "on-the-fly" GVR method, global neutron and photon flux distributions with reasonable relative error were obtained. The irradiation damage to components in the antenna system was assessed, including DPA, gas production and nuclear heat density. The total nuclear heat for the transmission structure was 1.192 MW, and the peak irradiation damage was located at the front end of the Passive-Active Multi-junction (PAM) launcher. Owing to the blanket opening for wave propagation, the induced nuclear responses for VV and TFC were analyzed, and the shielding design was initialized. The results showed that all the parameters were within the design limit after the shielding design. Because part of the blanket module was occupied by the antenna launcher, the TBR of CFETR was evaluated, and it decreased by only 0.22% for the whole fusion reactor.
资助项目	National Magnetic Confinement Fusion Science Program[2019YFE03110000] ; National Magnetic Confinement Fusion Science Program[2019YFE03110002] ; Chinese National Natural Science Foundation[12005145]
WOS研究方向	Nuclear Science & Technology
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000706551400002
资助机构	National Magnetic Confinement Fusion Science Program ; Chinese National Natural Science Foundation
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/125619]
专题	中国科学院合肥物质科学研究院
通讯作者	Lu, Peng
作者单位	1.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.Hefei Compress Natl Sci Ctr, Inst Energy, Shushanhu Rd 350, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Wu, Qiuran,Lu, Peng,Zheng, Yu,et al. Neutronics assessments of LHCD antenna system for CFETR[J]. FUSION ENGINEERING AND DESIGN,2021,172.
APA	Wu, Qiuran.,Lu, Peng.,Zheng, Yu.,Du, Hua.,Liu, Liang.,...&Liu, Songlin.(2021).Neutronics assessments of LHCD antenna system for CFETR.FUSION ENGINEERING AND DESIGN,172.
MLA	Wu, Qiuran,et al."Neutronics assessments of LHCD antenna system for CFETR".FUSION ENGINEERING AND DESIGN 172(2021).