Abstract:

Twenty samples of cement raw material were calculated by MCNP4C code in order to find the relationship between the thermal neutron flux and the chara
cteristic γrays of main elements in sample. The relationship was determined by multiple linear regressions analysis. The result of the calculation shows that the relationship can be used to accurately calculate the thermal neutron flux and improve  the identification of the elements contents.

Key words: γray, cement raw material, thermal neutron flux, MCNP-4C