gy BOraG"grerin agreemant.:. fegercurious od "that the Beva- SEMROvUP1, | This wouldindioste that ‘the’ bulk of the ash betnivmrine ponetratud to the porsus wood stricture of the dock, thus“abeorming’ approx the Betas. The Gamma radiation over most of the ship was 4O mer. por hour when tho ship polate thie back to H f 3 hours, the time grated Gamma’dose is about 100 R. arrived in port. If we oxtra- the ash began to fall, the tnt~ Of course, the osh was faliing from i plus 3 hours to about H plua 9 hours, If we trke the mid-point of this period ag the start of exposure we find the exposure ig cbout 70 hk. 1 This, however, estimates the whole body Gamma radiation from residual debris still on the ship when the first measurements were made.actualdose could have been ‘ 16, or even 100 times higher depsnding or how ruch ssh an ath Me. was washed off the ship and at what time. We have made a number of discreet inquiries in the hopes that photographie film might have been available aboard the ship and might possi“Deposition of Internal Emitters — ltt. All efforts to date have bean negative, . bly be used as a dosimeter, f There was on urgent requirement to evaluate the extent to which fission products had been absorved into the tissues of the fishermen, As mentioned earlier, Dr. Nakaidzumi had concluded from his mouse expori-~ ment that the prognosis for the fishermen was adversely affected by thn probability of exvessive depositicn of long-lived bone-seeking isotopus. ~~ The Japanese scientists were despe.ately looking for an agent to mobilize _ these isotopes and Dr. Lewis believes thet they had administered EDTA to | the patients, despite the fact that urine analysis was beyond their capability and they were thcrefore unable to determine either the --zed for EDTA or the effect produced by it. /part from the fact that wv: unable to undertake urine analysis at that tiw, it is n.szoeveu .. they did not understand the dynamics of fission product metabolism and were not used to thinking in terms of urinary excretion levels as on index of absorption and deposition, Thay were anxious to provide me with samples of urine for St. e~side analysis. Two samples were delivered on Merch 26 and five more on March 30. As yet we have not received semples from the remaining 16 paticnts. The samples received were properly forwerded to the Health and Safety Laboratory and I have had the results of gross analysis of the first two samples, I communicated these results to Dr. Kobayashi in the attached letter which is self-exp:inatory,. 200oe : 3 3 E. Be 3