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Title: Neutron yield enhancement in laser-induced deuterium-deuterium fusion using a novel shaped target

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.
Authors:
; ; ; ; ; ; ; ; ;  [1] ; ;  [2] ; ; ; ;  [3] ;  [4] ;  [5] ; ;  [6] more »; « less
  1. Laboratory of Optical Physics, Institute of Physics, CAS, Beijing 100190 (China)
  2. Institute of Nuclear and Particle Physics (INPAC), Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240 (China)
  3. Key Laboratory of Optical Astronomy, National Astronomical Observatories, CAS, Beijing 100012 (China)
  4. Nuclear Data Center, Korea Atomic Energy Research Institution, Daejon 305353 (Korea, Republic of)
  5. Department of Astronomy, Beijing Normal University, Beijing 100875 (China)
  6. Shanghai Institute of Laser Plasma, Shanghai 201800 (China)
Publication Date:
OSTI Identifier:
22483244
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 86; Journal Issue: 6; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; DEUTERIUM; DEUTERONS; FOILS; INTERFEROMETRY; LASERS; MEV RANGE 01-10; NEUTRONS; PLASMA DENSITY; SIMULATION; YIELDS