48 DASA 2019-2 DUNHAM: If it had happened on their own home island they probably would have had a lethal exposure within the 48 hours between the time of the fallout and the time they were evacuated. These were studics that were made by Pete Scoville, * [think (see Dunning, Ref- erence 3), who was one of the principal people involved in actually taking the measurements. They went in there at 36 anu 48 hours; they took readings at different ptaces or different parts of the atoll, then went back later, took more readings, and then extrapolated back along the K-constants, and so forth, as to what it would be originally and what the infinity dose would be. Merril, do you want to comment on this? EISENBUD: obviously, DUNHAM: I think it was very difficult to estimate the doses, Yes. EISENBUD: [I've often nad a feeling that the doses may have been very much higher than had been estimated, particularly in the case of the Japanese ship. DUNHAM: Of course, that's a different proposition, because nobody measured them until two weeks later. EISENBUD: DUNHAM: That's right. And the ship had been hosed some. EISENBUD: That's right. I saw that ship March 22, 22 days late~, and by that time it was still reading generally about 1!0 mr per hour, and the Japanese and our own people had had enough of the debris. We knew whit the decay-characteristics were, and if we extrapolated from that 150 mr per hour to H plus four hours, the integrated dose was something better than 100 r. DUNHAM: Yes. EISENBUD: By this time the ship had been hosed, as you say, and scrubbed and people had gone on with vacuum cleaners to take off as * Scoville, H., Jr. At that time Scientific Director, Special Weapons Project. Armed Forces