(Je
.
‘ecientiats and’ government offistiig on’March 24,
oo otFanseweal of the
I made 2 further
Atomic Energy Commission, to provide whatever
tdeg*were availible for evaluation ofthe radiological factors in-
volved in the‘‘incident, I repeated the assurances repeated earlier by Dr.
Morton that we wished sincerely to be of assistance, that our particdpation
was not motivated (as some Japanese suggested) by the opportunities for
scientific studies, and that whatever data we obta/ned would be turned
over to the Japanese investigators to bo used by tiem in any way thoy saw fit,
;
At this point {t would be desirable to list the radiological studirs
which had been already made by the Japanese, These studies are of interest
because they indicate the extent of Japanese capabilities in this rield, and
define the extent to which our facilities woul¢c be helpful to the Japanese,
Using a Cutie Pie, they measured une radioactivity of the Fukuryu
ot teres &
(1)
;
3
Maru. These data appear completely satisfactory and prove to be in good
agreement with measurements made with American calibrated equipment,
«
(2) They measured radioactivity of the fish and fishermen, using
portable survey equipment. However, their equipment was not calibrated
and their data were given in counts per minute as determined by the original
factory calibration.
‘
{
?
(3)
They determined that the ash recovered from the vessel was
(4)
They completed a qualitative radiochemical analysis of the asli
radioactive using an end windew GM tube and scaler. Their counting system
was not calibrated and they reporteu counts per minute with no knowledge
of the factor required to convert tneir data to standard units.
and reported the following:
Sr 89, Y91, Zr95, Nb9Sm, NbB9I5,
RUINI
Rh106, Sbl27, Tel32, 1132, 1232, BalO, LalhO, Celyl, Cel’. (rr
=> 75
recently they have completed a semi-quantitave analysis for a fe~
isotopes).
(S) They had scanned the bodies uf the fishermen with a GM probe.
g
(6)
They had administered a duse of ash to 1 mouse, as descrived
4
(7)
Using an imersion type GM tube, they had demonstrated radio-
earlier.
-
activity in the urine of 3 fishermen.
As before, their equipment was not
calibrated and the absolute activity could not be determined.
Qe
3
2 §
9 of
ea
f
3
With this as the stats of their investigation at the time of cy arrival,
and following several hours during which I acquainted the Japanese with our
experience in this field, I{ offered thé following services to them:
(1)
2
Complete radiochemical analysis of 24 hour urine collec*{cas fror. 23
a1] patients.
In view of the importance of this analys‘
the status of the patients, I urged tis these campl.-
evry ct
6h sed
imsediately and assured them thac in one week 1, would be possible to
give them a report for the constituents of prince ‘:ul blologieal imp-rtance,
I explained the need for serial samples and suggested that © Jilections be
made at weekly intervals. They seemed anxious to accept this service.
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