Numerical Calculation of Neutron Pinhole Image(In Chinese)

A new numerical method based on calculating spatial distribution of transmitted neutron intensity is studied for the design of neutron pin-hole relaying system,and WINPSF code is then developed for calculating image quality, point spread function,as well as neutron flux distribution at the image plane.It indicates that the results given by WINPSF agree well with those given by MCNP5,and WINPSF can give results in better statistical quality in shorter computer time than MCNP5.

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