Radiological defense (RADEF) is a life-saving skill essential to anyone who hopes to survive in a nuclear fallout environ¬ment. The first comprehensive book on how to measure fallout, this manual in-cludes information previously known only to military and Civil Defense officials. Two computer programs, specially designed by the author for a home computer, can prove invaluable in making RADEF calculations. Learn how select and use equipment; make external readings from in¬side the shelter; predict length of shelter stay regardless of fallout type and quantity; estimate past and future total radia¬tion exposure; both inside and outside; use nomograms and advanced techniques of radiation prediction; and more. A civil defense coordinator and RADEF instructor, Bruce Clayton provides the hard-to-find info necessary for becoming a RADEF officer or monitor for your family or survival group.