Cee NV/HEG Mtg.-Sept. 26-27, 1968 Page & is based on field test data from the JOHNNY BOY shot and further work by Dr. x. J. Russell. Dr. Russell concluded that a one-hour dose rate of one r per hour corresponds to 6.4 microcuries of fractionated I-131 per Square meter and to 18.5 microcuries of unfractionated I-131 per square meter. Using a simplified model from the National Academy of Sciences, National Research Council document on radioactive fallout, this ground deposition in microcuries per square meter is multiplied by 32.7 to determine the infant thyroid dose in rads. The total thyroid dose can be related back to the gross gamma dose rate. For one value, the 1.5 rad child thyroid dose related back to 2.48 mr per hour at H+] hour. Using a DASA model, documented in the form of graphs and nomograms contained in Air Force Technical Manual 136-1, ties of Atomic Weapons the Capabili- (TM 23-200), parameters such as fission to fusion yield, height of burst, wind, etc., can be applied. It appears that the ground deposition prediction compares favorably to the NRDL '"'D" model. Capt. Dieckhoner pointed out that the Air Force is primarily interested in howt~by-hour prediction and does not place emphasis on the mr per hour predictions. VI. COMMENTS ON ROUCHDRAFI OF THE F-106B/AIR 2A NUTEX In response to the Chairman's desire to express the problems involved eve in the F-106 NUTEX, it was suggested that TC/DASA be advised of the following problem areas which will require further investigation: a. The marine ecology association with the Gulf circulation patterns, wiinGeeien COPIED/DOE SANDIA % °