DRAFT TFM: SA: ADHP 10/19/73 EXPOSURE RATE REDUCTION ON BIKINI ISLAND DUE TO CONCRETE DWELLINGS by Tommy F. McCraw Division of Operational Safety Headquarters, Germantown U.S. Atomic Energy Commission and Oliver D. T. Lynch, Jr. Radiological Operations Division Nevada Operations Office, Las Vegas U.S. Atomic Energy Commission June 1973 40275