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The Optimization of Mathematic Model of Penumbral Imaging System’s Point Spread Function

[+] Author Affiliations
Ren-qiang Jiang

No.9-41#, Huafeng Xincun, Jiangyou, Sichuan, China

Yue-lei Wu

Xi’an Jiaotong University, Xi’an, China

Zhi-rong Lu

Equipment Department, No.96151 Army, Huangshang, AnHui, China

Tie-jun Zhang

Military Representative Office of The Army Aeronautical Department Resident in Shanghai Region for The Headquarters of General Staff, Shanghai, China

Paper No. ICONE18-29743, pp. 573-578; 6 pages
  • 18th International Conference on Nuclear Engineering
  • 18th International Conference on Nuclear Engineering: Volume 6
  • Xi’an, China, May 17–21, 2010
  • Conference Sponsors: Nuclear Engineering Division
  • ISBN: 978-0-7918-4934-7
  • Copyright © 2010 by ASME


In inertial confinement fusion (ICF) project, there are many diagnostic methods. Neutron penumbral imaging is one of the important technologies to diagnose the information about neutron spatial and temporal distribution in burn region of the core of a compressed pellet in the low yield fusion. In this study, a linear space invariant neutron penumbral imaging system was designed and established with Monte Carlo method, the system’s point spread function (PSF) was obtained. By fitting the obtained PSF, several mathematic models were obtained and compared. The improved “logistic function” mathematic model was chosen to reconstruct the coded penumbral image and the original neutron source image “T” was successfully was obtained.

Copyright © 2010 by ASME
Topics: Optimization , Imaging



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