wey
gamma
cadiation are
shown.
first few millimeters of
midline
dose of ganma
The doses
of
radiation
to
the
surface
and
thie
the body were substantially higher than the
radiation.
3 cm dose of radiation.
The curves presented are 4 percent of
In addition,
the
clinical observations ot
the
the
skin
lesions forcefully demonstrated that the dose to the skin varied
considerably between
individual because of
individuals and over
the
the spotty nature of
Another feature of
the radiation burns
fallout radiation is
arrived about 4-5 hours after detonation.
of dose as a function of
continuously as
to the skin.
The fallout
Figure 13 shows che accumulation
time after detonation.
dose was received at a higher dose rate.
by
the dose rate had fallen
The dose rate decreased
The major portion of the
the time that 90% of
to less
than 40% of
the dose
initial
thus is much different from any aninal exposure condition in the
literature.
The
influence
of a dose
rate
fro
value and
its decay.
the fallout material decayed.
had been received,
surface of any given
falling by a 1.2 power function
is not known.
4
.
q
he
j
he
it was stated that 150 rad over one week, 200 tad
;
na
over one month, or 300 rad over tour months is believed to be sublethal and
SZ
of
a
ra.
Repair of kadiation
Injury
This has been constderea in some detail in a
In the NCKP dissertation,
that no medical care would
be
required,
report of the MCKP (37),
However, 25U rad over
one week,
350 rad over one month, or 500 rad over four months is estimated to be in
when =.
the
mortality witnout
tnerapy
is estimated
extensive medical care will be required.
nut midiine
to
be SUZ or more and.
3
longer,
Seek
45G rad is received over one week, 600 rad or more over one month or
a
8
These are doses of rad is ied
tissve dose in rad.
.
Whether studies on mice are applicable
z
to man is mot known.
as
ln recent“
unpublished studies, we have investigafed the influence of varying the “thie ink
interval trom 1-24 hours between 2.5 Gy, 250 kVp x ray to nice,
of
10 Gy.
mice
This
survive
is
shown
30 days.
in Figure 14.
As
a
ay o
the mice
survive.
Figure
15 snows
the
Seta ot .
heen
the 5% murtality rane and that some medical care will be required.
Bonk
hematopoietic
stem cell
(cr) wt
de;
tot
eff,
ant
{up
aa¢