MODERATOR EVALUATION FOR THE K PILES-AGHT (CHF) AND 185 W GRAPHITE

In order to evaluate AGHT and 185-W graphites for use in the K piles, measured physical properties were directly compared to physical properties of other graphite components of the pile moderator. The results of this study indicated that neither of these graphites were significantly differert in physical properties from graphites to which they were being compared. However, the expesure periods in Hanford piles for the determination of radiation induced physical property changes were short with respect to exposure periods for the evaluation of other graphites to be used as portions of the K-pile stacking. The evaluation with respect to individual physical properties is discussed in detail. (auth)