NEW YORK UNIVERSITY MEDICAL CENTER
R
Institute of Environmental Medicine .
550 FIRST AVENUE, NEW YORK, N.Y, 10016
“AREA 212 679-3200
401647
ANTHONY I. LANZA RESEARCH LABORATORIES AT UNIVERSITY VALLEY
LONG MEADOWROAD, STERLING FOREST, TUXEDO, N.Y,
MAIL AND TELEPHONE ADDRESS: 550 FIRST AVENUE, NEW YORK, N.Y, 10016
April 18, 1977
'Dr. Robert A. Conard
Medical Department
Brookhaven National Laboratory
Upton, New York
oy
11973 .
,
Dear Bob:
I apologize for the delay in mailing out the external
whole body counting results on Drs.
However,
as I mentioned, we are still awaiting the results of thea
bioassay measurements of concentrations of plutonium and
americium in their urines.
At any rate, since it's been:
some time since their visit to our lab, I'll report on the
in vivo measurements in this letter and send you the results
of thebioassay when they become available.
Drs.
arrived at the
Institute of Environmental Medicine on 11 March 1977 to
undergo whole body and thorax counting procedures for isotopes
of plutonium and/or americium.
General occupational histories
for each individual were recorded, and measurements of some of
the more important anthropomorphic parameters are given in
Table 1.
Three independent counting procedures were employed
for each subject.
The initial measurement for all persons who
-are counted in this laboratory consists of a modified meterarc
geometry with the subject sitting in a standardized stainless
steel. chair.
An 8"x4" NaI(T1)
crystal detector is emplayed ta
quantitate the presence of photons of energy greater than 100
keV including normal activities from K-40 that is present in
the body.
Both subjects were thus counted for a total of 30
minutes each in this geometry.
Results of these measurements
are then utilized along with other information for selection
of a series of control subjects who have no history of
possible radionuclide contamination.
‘Figures 1 and 2 give the
gamma-ray pulse height for Drs.
respectively
‘and illustrate what was determined quantitatively, i.e., that
PRIVACY ACT MATERIAL REMOVED
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