Physical design and evaluation of a high-intensity accelerator-based D-D/D-T fusion neutron source

被引：4
|
作者：
Wei, Z. [1 ,2 ]
Han, C. [1 ]
Peng, S. H. [1 ]
Bai, X. H. [1 ]
Liu, C. Q. [1 ]
Ma, Z. W. [1 ]
Huang, Z. W. [1 ]
Zhang, S. J. [1 ]
Li, W. M. [1 ]
Yang, Y. [3 ]
Yao, Z. E. [1 ,2 ]
Wu, W. S. [1 ,2 ]
Zhang, Y. [1 ,2 ]
Lu, X. L. [1 ,2 ]
Wang, J. R. [1 ,2 ]
Su, X. D. [1 ,2 ]
Xu, D. P. [1 ,2 ]
机构：
[1] Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Gansu, Peoples R China
[2] Lanzhou Univ, Minist Educ, Engn Res Ctr Neutron Applicat, Lanzhou 730000, Gansu, Peoples R China
[3] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China
来源：
EUROPEAN PHYSICAL JOURNAL A | 2019年 / 55卷 / 09期
关键词：
BENCHMARK EXPERIMENT; ACTIVATION; GENERATOR; N)HE-3; ENERGY;
D O I：
10.1140/epja/i2019-12848-5
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
A high-intensity accelerator-based D-D/D-T fusion neutron source (ZF-400) with a thick adsorption target is designed with an intensity of 10(13) n/s. A high-current microwave ion source is used to produce a large current deuteron beam, and neutrons are generated by irradiating the deuteron beam on a deuterium-adsorption target or tritium-adsorption target. According to the particle-in-cell (PIC) code, the length of the whole high-current D+ beam transport line is 500 cm, the D+ beam transfer efficiency is up to 96%, and various components can match each other. On the rotating target, the D+ beam spot size is about 20.0mm with energy of 450 keV. Based on the heat conduction theory, the thick adsorption rotating target with water-cooling can withstand the D+ ions beam with 450 kV/50mA and ensure that the temperature is less than 200 degrees C. According to the multi-layer computing model, neutron energy spectra, angular distributions and yields for the thick target can be calculated with remarkable precision. The neutron energy spectra are non-mono-energetic neutrons for the ZF-400 neutron generator, the neutron angular distributions are anisotropic distributions, and they can provide neutrons with an intensity of 2.8 x 10(11) n/s (D-D) and 1.4 x 10(13) n/s (D-T), respectively, with the deuteron of 450 keV/50 mA.
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页数：9
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