Study of Signal to Noise Ratio of Coded Source Neutron Imaging with Analysis Method and Numerical Simulation

Publication date: 2017 Source:Physics Procedia, Volume 88 Author(s): Sheng Wang, Hang Li, Chao Cao, Yang Wu, Heyong Huo, Bin Tang, Yubin Zou, Yuanrong Lu, Guoyou Tang, Zhiyu Guo Coded source imaging (CSI) technique could increase the utilization rate of neutron when high L/D required in neutron imaging. The images need to be reconstructed from the raw projections. The reconstruction would amplify the noise of the raw projection, which will affect the quality of reconstructed images. Study of Signal to Noise Ratio (SNR) in CSI shows image quality depends on geometry structure and neutron beam parameters. With analysis method based on correlation reconstruction arithmetic, SNR was detailed to assess the effects from different geometry factors. Numerical simulation as a further supplement proves the rationality of analysis method. The comparison of SNR between CSI and traditional neutron radiography (NR) shows that the SNR of CSI could be better than NR in some conditions.

Source: Physics Procedia - June 24, 2017 Category: Physics Source Type: research