Study of neutron spectra in a water bath from a Pb target irradiated by 250 MeV protons

	Study of neutron spectra in a water bath from a Pb target irradiated by 250 MeV protons
	Li, YY; Zhang, XY; Ju, YQ; Ma, F; Zhang, HB; Chen, L; Ge, HL; Wan, B; Luo, P; Zhou, B
刊名	CHINESE PHYSICS C
	2015
卷号	39 期号:4 页码:44001
关键词	spallation reaction bath activation method neutron spectrum MCNPX simulation
英文摘要	Spallation neutrons were produced by the irradiation of Pb with 250 MeV protons. The Pb target was surrounded by water which was used to slow down the emitted neutrons. The moderated neutrons in the water bath were measured by using the resonance detectors of Au, Mn and In with a cadmium (Cd) cover. According to the measured activities of the foils, the neutron flux at different resonance energies were deduced and the epithermal neutron spectra were proposed. Corresponding results calculated with the Monte Carlo code MCNPX were compared with the experimental data to check the validity of the code. The comparison showed that the simulation could give a good prediction for the neutron spectra above 50 eV, while the finite thickness of the foils greatly effected the experimental data in low energy. It was also found that the resonance detectors themselves had great impact on the simulated energy spectra.
学科主题	Physics
类目[WOS]	Physics, Nuclear ; Physics, Particles & Fields
收录类别	SCI
WOS记录号	WOS:000352828800006
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/228334]
专题	高能物理研究所_东莞分部
推荐引用方式 GB/T 7714	Li, YY,Zhang, XY,Ju, YQ,et al. Study of neutron spectra in a water bath from a Pb target irradiated by 250 MeV protons[J]. CHINESE PHYSICS C,2015,39(4):44001.
APA	Li, YY.,Zhang, XY.,Ju, YQ.,Ma, F.,Zhang, HB.,...&王松林.(2015).Study of neutron spectra in a water bath from a Pb target irradiated by 250 MeV protons.CHINESE PHYSICS C,39(4),44001.
MLA	Li, YY,et al."Study of neutron spectra in a water bath from a Pb target irradiated by 250 MeV protons".CHINESE PHYSICS C 39.4(2015):44001.