Pode hs ad by va bos ie FO ety ce Sorted betel occ 20-26 are incre cnt. [tb is rious Ltn Gemmt ratio is about 1, rhis vc culd indie tl that tho lulz cf the -ch ere by this time p-ngtrot.d to the porvus word structure of the deck, thus absorbing the Betas, The Germa rediation over most of the-ship was approximately LO mr, per hour when the ship errived in port. If we cktra- polate this beck to H #4 3 hours, the time the ash began to fall, the intcgrated Gamma dose is about 100 R. Of course, the ash was falling from H plus 3 hours to about H plus 9 hours. If we take the mid-point of this period as the start of exposure we find the expcogure is about 70 R. This, however, estimates the whole body Gemma rediation from residual debris still on the ship when the first measurements were made. ihe actual dose could have been 2, 10, or even 100 times higher depending on how much ash was washed off the ship and at what tine. We have made a nunber of discreet inquiries in the hopes that . photogrephic film might heve been evailcdle aboard the ship and might possi- bly be used as a dosimeter, 411 efforts to dete have been negative. Deposition of Internal Enitters . There was an urgent requirement to evaluate the extent to which fission products had bzen absorbed into the tissues of the fishermens £8 mentioned earlier, Dr. Nekaidzumi had concluded from his mouse experiment that the pregnosis for the fishefmen wes adversely effected by the prebability of excessive deposition of long-lived bane-seeking isctopes. The Jepsnese scientists were desperately locking for 2n egent to mobilize these isotcpes and Dr, Lewis believes thet they had administered EDTA to the paticnts, despite the fact that urine enalysis was teyond their capability and they were therefcre unable to determine either the need for FOTA or the effect produce d by ite Spart from the fect that they were uneble to undertake urine analysis at thet tine, “it is 2lso evidest that they did not understend the dynamics of fission prrduct metabolism and were not used to thinking in terms of urinery excretion levels cs on index ef etsorption and deposition. They were anxious to provide me with samples of urine for State-side analysis, Two samples were delivered on Merch 26 and five acre on llarch 30. As yet we have not received samples from the remsining 16 The samples received were properly forverded to the Health and Lobcratory tnd I have hed the results of gross snelysis of the sovuples, I co:smunieatcd these results to Dr, Kivcyssni in the let ter which is s: Lf-excn cnntory. patients. Safety first two ettached