liu dong-jian, tang chang-huan, zhao zong-qing, et al. Image reconstruction technique for neutron penumbra imaging[J]. High Power Laser and Particle Beams, 2006, 18.
Citation:
liu dong-jian, tang chang-huan, zhao zong-qing, et al. Image reconstruction technique for neutron penumbra imaging[J]. High Power Laser and Particle Beams, 2006, 18.
liu dong-jian, tang chang-huan, zhao zong-qing, et al. Image reconstruction technique for neutron penumbra imaging[J]. High Power Laser and Particle Beams, 2006, 18.
Citation:
liu dong-jian, tang chang-huan, zhao zong-qing, et al. Image reconstruction technique for neutron penumbra imaging[J]. High Power Laser and Particle Beams, 2006, 18.
Institute of Nuclear Science and Technology,Key Laboratory of Radiation Physics and Technology of Education Ministry,Sichuan University,Chengdu 610064,China;
2.
Research Center of Laser Fusion,CAEP,P.O.Box 919-986,Mianyang 621900,China;
3.
Department of Engineering Physics,Tsinghua University,Beijing 100084,China
The principle of the neutron penumbra imaging was introduced, and the effect factors of the resolution of the imaging system were analyzed. The neutron penumbra imaging process was simulated with MCNP software. The coded image of one point source on the imaging principal axis and that of two point souces off the principal axis with and without noise and background were reconstructed by the improved inverse filter and Wiener filter method respectively. The simulation results indicated that the Wiener filter method could restrain noise better.
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