Measurement of Neutron Flux at the Initial Phase of Discharge in EAST

HFCAS OpenIR

	Measurement of Neutron Flux at the Initial Phase of Discharge in EAST
其他题名	Measurement of Neutron Flux at the Initial Phase of Discharge in EAST
	2011
发表期刊	PLASMA SCIENCE & TECHNOLOGY
ISSN	1009-0630
摘要	Neutron emission in EAST was investigated by a time-resolved monitor system which consists of four He-3 proportional counters and a U-235 fission chamber. The D-D neutron flux increased approximately an order of magnitude during the 27 MHz ion-cyclotron radio frequency (ICRF) heating, demonstrating that the ICRF wave heated the plasma effectively. In addition in lower hybrid wave (LHW) experiment with higher plasma parameters D-D neutrons were also detected. However, masses of photoneutrons were generated in Ohmic discharges with low plasma density. Effect of plasma density on the production of photoneutrons was studied, and it is found that LHW can suppress the generation of the runaway electrons and reduce the share of the photoneutrons effectively.
其他摘要	Neutron emission in EAST was investigated by a time-resolved monitor system which consists of four ~3He proportional counters and a ~(235)U fission chamber.The D-D neutron flux increased approximately an order of magnitude during the 27 MHz ion-cyclotron radio frequency (ICRF)heating,demonstrating that the ICRF wave heated the plasma effectively.In addition in lower hybrid wave (LHW)experiment with higher plasma parameters D-D'neutrons were also detected.However,masses of photoneutrons were generated in Ohmic discharges with low plasma density.Effect of plasma density on the production of photoneutrons was studied,and it is found that LHW can suppress the generation of the runaway electrons and reduce the share of the photoneutrons effectively.
关键词	RUNAWAY ELECTRONS DIAGNOSTICS neutron flux plasma diagnostic EAST tokamak
收录类别	CSCD
语种	英语
资助项目	[National Natural Science Foundation of China] ; [National Magnetic Confinement Fusion Science Program of China]
CSCD记录号	CSCD:4222582
引用统计	被引频次：4[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/48001
专题	中国科学院合肥物质科学研究院
推荐引用方式 GB/T 7714	. Measurement of Neutron Flux at the Initial Phase of Discharge in EAST[J]. PLASMA SCIENCE & TECHNOLOGY,2011,13.
APA	(2011).Measurement of Neutron Flux at the Initial Phase of Discharge in EAST.PLASMA SCIENCE & TECHNOLOGY,13.
MLA	"Measurement of Neutron Flux at the Initial Phase of Discharge in EAST".PLASMA SCIENCE & TECHNOLOGY 13(2011).