Background: A new method

energy selective neutron radiography

has been presented to be an advanced technique for determination of the crystalline structures in engineering materials. Numerous studies about the advanced technique were reported by the international well-known neutron scattering research centers. Purpose: The aim is to master the basic principles

instrument configuration optimization scheme and the application field. Methods: We analyzed the basic principles of the energy selective neutron radiography

compared different methods for achieving the monochrome neutron beam

and presented the application field which showed the data analysis methods. Results: When achieving the monochrome neutron beam

the velocity selector could get a much higher intensity but with a coarse resolution

the time of flight (TOF) method could get a much better resolution but with a lower intensity

and by using the double crystal method

the intensity and the resolution could realize the balance. So this technique could be used to enhance the in image contrast

measure the residual stress distribution

analysis the texture and study the phase transition of the materials. Conclusion: Energy selective neutron radiography is a very valuable experimental technique

which has an important application prospect. Abstract