Japanese scientists anc. goverrnent officials on March 24, I made a further offer, in Denalf of the Atomic Enerzsy Comission, to provide whatever facilitics were available for cvaluetion of the radiological factors involved in tne incident, I repeated the assurances repeated carlier by dr, Morton that we wished sinccrely to be of assistance, that our participation ceee le Li mente seterten sh niece fs nie $4 beat nhnedte 6 dee ee me meer cmdline was not motivated (as some Japanese suggested) by the opportunities for scientific studies, and that whatever data we obtained would be turned over to the Jnpanese investigators to be used by thes in any way they saw fit. At this point it would be desirable to list the radiologicel studies’ waich nad been already made by the Japanese, These studies sre of intercst becesuse they indicate theextent of Japanese capabilities in this field, and éefine the extent to which our facilities would be helpful] to the Japanese, (1) Using a Cutic Pie, they measured the radioactivity of the Fukuryu Meru, These data appear conpletely satisfactory and prove to be in good agrecment with measurenents made with American calibrated equipment. (2) Trey measured racioactivity of the fish and fishermen, using portable survey equipment, However, their equipment was not calibrated and their ¢ata were given in counts per minute as determined by theoriginal factory calibration, (3) They Cetermined that the as recovered from the vessel was radioactive using an end wincow GM tube and scaler, Their counting system was not calibrated anc they reported counts per minute with no knowl edge of the factor required to convert their deta to standard units. ~ (4) They completed a qualitative raciochemical analysis. of- the. coh: ana reported the following: Sr89, YS1, 2r95, Nb95m, Nv95, Ruld3, Rul06, R106, $0127, Tel32, I161, 1132, Baldo, Lal20, Cel¢l, Cel44. (More reoently they have completed a semiquantitative anelysis for a few ee matesreena A ene ataal isotopes). arenesees (5) They hed seanned the bogies of the fishermen with a GY probe, (6) They had administered a dose of 2sh to 1 mouse, as described earlier. (7) Using an imersion troc GM tube, they heé deconstrated radio- activity in the urine of 3 fisherner, As before, their cquipment was not seme ee etl calitratec anc the avsclute activity could not be Cetermined, With tris as the status of their investigation at the time of my arrival, and following several hours Curing which I acquainted the Javanese with.our experience in this field, I offered the following services to them: . (1) Complete radiochemical analysis of 24 nour urine collections from all patients, In view of the importance of this annlysis in evaluating tho status of the patients, W urged that these samples be furnished innediately and assured then that in one week it would be possible to give then a report for the constituents of princip#l biological importance, I explained the need for serial samples an. suggested thet collections be nade at weekly intervals, They seemed anxious to accept this service, CHIVES Te GYwo an US DOEARy