as well as with yield, time, and distance. Some of the data have been scaled to permit estimates of exposures at unshielded locations. However, theoretical calculations of exposures are required in cases where the radiation energies are degraded by passage through materials such as the ship's structure. Scaling and calculational techniques, and their reliability, are discussed in the remaining sections that deal with the individual mclear radiation classes. Effects of exposures on equipment will also be discussed in these sections. The effects of exposures on personnel are considered in Chapter !&. 17-19 ce ee eerrr mern