Neutron yield enhancement in laser-induced deuterium-deuterium fusion using a novel shaped target
- Laboratory of Optical Physics, Institute of Physics, CAS, Beijing 100190 (China)
- Key Laboratory of Optical Astronomy, National Astronomical Observatories, CAS, Beijing 100012 (China)
- Nuclear Data Center, Korea Atomic Energy Research Institution, Daejon 305353 (Korea, Republic of)
- Department of Astronomy, Beijing Normal University, Beijing 100875 (China)
- Shanghai Institute of Laser Plasma, Shanghai 201800 (China)
Neutron yields have direct correlation with the energy of incident deuterons in experiments of laser deuterated target interaction [Roth et al., Phys. Rev. Lett. 110, 044802 (2013) and Higginson et al., Phys. Plasmas 18, 100703 (2011)], while deuterated plasma density is also an important parameter. Experiments at the Shenguang II laser facility have produced neutrons with energy of 2.45 MeV using d (d, n) He reaction. Deuterated foil target and K-shaped target were employed to study the influence of plasma density on neutron yields. Neutron yield generated by K-shaped target (nearly 10{sup 6}) was two times higher than by foil target because the K-shaped target results in higher density plasma. Interferometry and multi hydro-dynamics simulation confirmed the importance of plasma density for enhancement of neutron yields.
- OSTI ID:
- 22483244
- Journal Information:
- Review of Scientific Instruments, Vol. 86, Issue 6; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
- Country of Publication:
- United States
- Language:
- English
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