DEVELOPMENT OF A NEW SELF-SHIELDING PROCE DURE AS PART OF THE EFFECTIVE REACTION-RATE METHOD

The major problem of the self-shielding methods based on the equivalen ce principle is the difficulty of calculating the dilution cross secti on <(sigma)over bar>(e) with adequate precision. We have proposed a ne w self-shielding procedure that contains a new technique to calculate dilution cross section. We have compared our method to the generalized Stamm'ler method. Accuracy of each computing approach is determined u sing reference results obtained from a micro-group slowing-down code n amed CESCOL.