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35
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available on the exposure of employees of the Rocky Flats
facility and to relate this to the hot particle problen.
J. R. Mann and R. A. Kirchner discuss the exposures that
resulted from a plutonium fire at Rocky Flats on 15 October
1965.°°
Some 400 employees were working in the room at the
time the fire occurred.
These employees were subsequently
placed in a whole body counter to determine their lung burdens
of Pu-239.
However, Mann and Kirchner reported only on those
25 employees who were exposed above the MPLB of 0.016 uCi.
Table V presents the information on the exposure of
these 25 employees.
Utilizing the other information presented
by Mann and Kirchner, we have also estimated in Table V
the fraction of the lung burden activity (uCi) associated
with hot particles and the number of hot particles that this
~~
represents.
63/
Mann, J.R. and R.A. Kirchner, Op. cit.