Numerical simulation of neutron penumbral imaging

zhao zong-qing; ding yong-kun; liu dong-jian; tang chang-huan; wen shu-huai; pu yi-kang

Volume 18 Issue 07

Jul. 2006

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Article Navigation > High Power Laser and Particle Beams > 2006 > 18(07): 0-

zhang peng, yuan sheng-fu, wang hong-yan, et al. Fixed angle plane reflective mirrors scanning measurements for laser small signal gain[J]. High Power Laser and Particle Beams, 2005, 17.

Citation:

zhao zong-qing, ding yong-kun, liu dong-jian, et al. Numerical simulation of neutron penumbral imaging[J]. High Power Laser and Particle Beams, 2006, 18.

zhang peng, yuan sheng-fu, wang hong-yan, et al. Fixed angle plane reflective mirrors scanning measurements for laser small signal gain[J]. High Power Laser and Particle Beams, 2005, 17.

Citation:

zhao zong-qing, ding yong-kun, liu dong-jian, et al. Numerical simulation of neutron penumbral imaging[J]. High Power Laser and Particle Beams, 2006, 18.

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Numerical simulation of neutron penumbral imaging

1.
Department of Engineering Physics,Tsinghua University,Beijing 100084,China;
2.
Research Center of Laser Fusion,CAEP,P.O.Box 919-986,Mianyang 621900,China;
3.
Institute of Nuclear Science and Technology,Sichuan University,Chengdu 610064,China

Publish Date: 2006-07-15

Abstract

Abstract

Penumbral imaging has high sensitivity, which will be the main technical method of neutron imaging in inertial confinement fusion (ICF) experiments. Based on the requirement of neutron penumbral imaging, two-dimensional image of neutrons transport in the coded aperture is simulated by Monte Carlo method, with the biased sampling skill and surface-flux replaced by volume-flux skill. The source image is obtained by reconstruction program. According to the simulation result, the 5 cm thick W bulk is selected as the shileding material and the optimized aperture outer radius is 1 cm.
- penumbral imaging technique,
- mcnp,
- coded aperture,
- neutron

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