mM
fa
A
WwW
those doses that you are showing on the board, when trans-
FF
I think it should be emphasized that
lated into dose units, are just a couple of hundred milit-
aw
EISENBUD:
grams.
ony
~
with the controlled unexposed population,
minute,
CONARD:
I was going to get around to that in a
EISENBUD:
Do
CONARD:
Sorry, I didn't mean to anticipate,
Then another isotope that was found was
10
cobalt-60 to som extent, which is about 1/10 the single
ll
level.
12
haven't done-.-
13
14
15°)
EISENBUD:
CONARD:
Any what?
Have you looked for it?
Not specifically, no; but we haven't had
whole-body counts now in a couple of years.
16
17
18
We haven't seen any iron-55 in the people but we
EISENBUD:
You can't do it with whole-body counting.
It decays by internal conversion and gives you an electron--CONARD:
Maybe we'll pick it up in the urine.
19
EISENBUD:
20
in your laboratory.
21
and look at it with a thin crystal.
22
23
24
25
26
27
28
No.
Yes,
It should be very interesting in that
group to see what the iron-55 level is.
esting isotope,
Maybe you have som
What you do is separate out the iron-55
DONALDSON:
EISENBUD:
Sample blood.
Iron-55 is an inter-
It's been neglected up till now because the
emission is a 6 Kev. electron which has a rank of ony one
micron in tissue and it's teen generally ignored.
goes to very small volumes of tissue.
But iron
Specifically it tends
29
to concentrate in these little globules and you get a very
30
high dose there because essentially all of the range of the
31
iron-55 electron is comparable with the diameter of the
32
globule,
33
Stafford Warren
DOEJUCLA &2
MILLET:
May I ask if the unexposed population