Scattering corrections in neutron radiography using point scattered functions

Scattered neutrons cause distortions and blurring in neutron radiography pictures taken at small distances between the investigated object and the detector. This defines one of the most significant problems in the quantitative neutron radiography. The quantification of strong scattering materials such as hydrogenous materials water, oil, plastic and etc. with a high precision is very difficult due to the scattering build up effect in the radiography images. The scattering contribution in liquid test samples H2O, D2O and a special type oil ISOPAR L at different distances between the samples and the detector, the so called Point Scattered Function PScF was calculated with the help of MCNP 4C Monte Carlo code. Corrections of real experimental data were performed using the calculated PScF. Some of the results as well as the correction algorithm will be presente