09-21-1994 12:11
S162€25311
P. 003
BNL-MED. DEPT.
Mr. Chairman, Congresamen and Observers:
I have been asked to summarize the early effects of sxposure of|aninals
amd man to external radiotion with particular reference to the effects of fallout
radiation on the Marshallese, the Los Alamos accident amd radium,
I
have been asked to comment on the beta burns in the Marshallese and
of beta burns.
addition I
qther examples
Since my personal experience is limited to the Mar
lese and ar
imal experimentation I shall limit myself to these and supply reference material
for the others.
It is quite impossible to cover all of this material in a reaso
ble period
of time so I shall concentrate upon the effects of exposure to extersht radiation
on animals and man with a clinical description of the syndrome of radh ation sickness as a funetion of dose of radiation and highlight the discussion ith illus-
trative material collected in the study of the Marshallese (1).
My prepared statement includes numerous references and further :n terial
that time will not permit discussion of at length here.
Radiation syndromes vary as a function of the type of exposure,
the time after exposure to radiation.
he dose and
In general radiation injuries ¢ an be divided
into three. gerieral classes:
os
a) "The: syndromes of whole body radiation injury produced by per etrating
lonizing radiation which are dose and time dependent.
b)
«Superficial radiation burns produced by soft radiations (be
and lov
energy x or gamma radiations).
e)
Radiation injury produced by the deposition of radionuclides
vithin
the body.
In the latter casa the clinical picture varies with the site and amounf
Each of the above is associated with an early phase in which acut
and signs may be observed, and a late phase in which chronic changes o
tions such as cancer may be observed.
of deposition.
symptoms
manifesta=
I wish to emphasize also that the degree