11 - Operations and Sustainment
3D IMAGING OF GEOMETRICAL STRUCTURE AND DEFECT LOCATION OF INNER CAVITY IN AVIATION DEVICES BY POSITRON INJECTION
H. Xiao, China; M. Zhao, China; M. Yao, China; J. Liu, China; H. Chen, China; M. Li, China; M. Du, China
Aviation devices such as hydraulic system are usually with inner cavity structure which is relatively complex. A three dimensional imaging method of geometrical structure and defect location of inner cavity by positron injection and OSEM algorithm is presented on the basis of positron annihilation theory in this paper. At last, an experiment is conducted to verify the utility of the method.