AADIT TRIP ALaCy NAY ENH TIL ia N = SOREDERE (3) They determined’ that the ash recovered from the ves- sel was radioactive using an end window GM tube and scaler, Their counting system was not calibrated and they reported counts per minute with no knowledge of the factor required to convert their data to standard units. . (4) They completed a qualitative radiochemical analysis of the ash and reported the following: Sr89, Y91, Zr95, 1131, 1132, Balto, Nb95m, Nb95, Rul03, Rul06, Rh106, Sb127, Tel32, Lal30, Cei4i, celhh, (More recently they have completed a semiquantitative analysis for a few isotopes.) (5) They had scanned the bodies of the fishermen with a GM probe, . 2 (6) They had administered a dose of ash to 1 mouse, a8 described earlier. (7) Using an : os itmersion type GM tube, they had: demonstra- ted radioactivity in the urine of 3 fishermen. As before, their equipment was not calibrated and the absolute activity could not . be determined, With this as the status of their investigation at the time of my arrival, and following several hours during which I acquainted the Japanese with our experience in this field, I offered the following services to thems ~ . ; - (1) Complete radiochemical analysis of 24 hour urine col- - lections from all patients. In view of the importance of this analysis in evaluating the status of the patients, I urged that. these samples be furnished immediately and assured them that in one week it would be possible to give them a report for the constituents of principal biological importance, I explained the the need for serial samples and suggested that collections be made at weekly intervals. service, They seemed anxious to accept this . ACTION: This offer was made on March 24, eptained urine from two patients, On March 26 we On April 1 we obtained urine from 5 more, We have not obtained urine from the remaining 16 patients despite our repeated attempts to do so, ~° . (2) I offered to scan the fishermen for radiation, using io Scintimeters that I had available, ACTION: I have been unable to do this because they have. not permitted the American team to have access to the patients, (3) In response to the Japanese request I offered to pro- vide a report on the biologically significant radioisotopes present in the ash, , e ACTION: Dr, Nekaizumi gave me a small amount of deck sweepings from the Fukuryu Maru. This I have sent to the Health and Safety Laboratory for future study. The composition of the ash was actually known to the-Commission from énalyses performed by the Air Force on the material obtained from the Fukuryu Maru prior to my visit, Authorization for transmission of this information to the Japanese was communicated to me in telegram No. 2199