快中子照相细节灵敏度初步实验研究

doi:10.11889/j.0253-3219.2015.hjs.38.080202

Nuclear Techniques ›› 2015, Vol. 38 ›› Issue (8): 80202-080202.doi: 10.11889/j.0253-3219.2015.hjs.38.080202

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Preliminary experimental research of detail sensitivity in fast neutron radiography

LU Changbing1,2 XU Peng2 BAO Jie1 CHEN Xiongjun1 REN Jie1 NIE Yangbo1 WANG Qi1 ZHANG Qiwei1 WANG Zhaohui1 RUAN Xichao1

1(Key Laboratory of Nuclear Data Measurement and Evaluation Technology, China Institute of Atomic Energy, Beijing 102413, China) 2(Nuclear Engineering Department, Second Artillery Engineering University, Xi'an 710025, China)

Received:2015-02-05 Revised:2015-05-13 Online:2015-08-10 Published:2015-08-13

Abstract

Abstract: Background: Detail sensitivity is an important technical indicator in the fast neutron radiography. Purpose: The spatial resolution and contrast sensitivity have important effects on the fast neutron radiography. Methods: Using the control variable methods, we process the different depth and diameter aperture samples of the polyethylene and Pb. Results: Many fast photographic images are obtained under different conditions. Conclusion: Through digital image processing, the preliminary relationship between the detail sensitivity with spatial resolution and contrast sensitivity were given. When the diameter is small, spatial resolution plays an important role in the detail sensitivity; however, contrast sensitivity plays an important part when the diameter is bigger. At last, a preliminary reference conclusion about detail sensitivity is given.

Key words: Fast neutron radiography, Detail sensitivity, Spatial resolution, Contrast sensitivity, Image processing

LU Changbing, XU Peng, BAO Jie, CHEN Xiongjun, REN Jie, NIE Yangbo, WANG Qi, ZHANG Qiwei, WANG Zhaohui, RUAN Xichao. Preliminary experimental research of detail sensitivity in fast neutron radiography[J].Nuclear Techniques, 2015, 38(8): 80202-080202.

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Preliminary experimental research of detail sensitivity in fast neutron radiography

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