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

• Published in: The European physical journal. A, Hadrons and nuclei Hadrons and nuclei, 2019-09, Vol.55 (9), p.1-9, Article 162
• Main Authors: Wei, Z., Han, C., Peng, S. H., Bai, X. H., Liu, C. Q., Ma, Z. W., Huang, Z. W., Zhang, S. J., Li, W. M., Yang, Y., Yao, Z. E., Wu, W. S., Zhang, Y., Lu, X. L., Wang, J. R., Su, X. D., Xu, D. P.
• Format: Article
• Language: English
• Subjects: Adsorption; Conduction heating; Conductive heat transfer; Deuterium; Deuterons; Energy spectra; Hadrons; Heavy Ions; High current; Ion beams; Ion sources; Multilayers; Neutrons; Nuclear Fusion; Nuclear Physics; Particle and Nuclear Physics; Particle in cell technique; Physics; Physics and Astronomy; Rotation; Special Article - New Tools and Techniques; Tritium
• ISSN: 1434-6001; 1434-601X
• DOI: 10.1140/epja/i2019-12848-5

. 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 500cm, 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 20.0 mm 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/50 mA and ensure that the temperature is less than 200 ° 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 × 10 11 n/s (D-D) and 1 . 4 × 10 13 n/s (D-T), respectively, with the deuteron of 450 keV/50 mA.