PRIVACY ACT MATERIALREMOVED
fo:
neers
—
L.H. Hempelmann, H-Diy., 5/24/%8, Bubjs
Personnel Based on Interviews with
.
:
Exhibit 1
age 3
"Dosage Estimates on Bandstone
_
.
i
"he Kow we compute the source strength of the griny, greasy or soct-like
substance vhich the men got fron lifting the filter unite. It vas visible
as black gunk on the white cottan gloves,
"
Also, ® monitor had varned
that thei: gloves vere hot. There are not specific data
on this gamma measurement af the hotness of the gloves. ‘Suppose however
that a gamma reafing of 0.5 mR/hr were found at 1 meter distance. This is
a low reading compared to the 20R per hour mentioned by
es having
been measured by Yan der Oriff at 25 feet from the nose of a plane.
The
reading of 0.5 mR/hr at 1 meter becomes 5 x 10" nR/br @ 1 om assuming @
point source.
From section 2 above we have 1.1 x 10? B epn/ 7/mR/hr which
leads to;
eo
Ll x10? x 5x 10° 5.5 x 109 B op
= 8.4 x 20° Bocps total activity on glove
or * 220 B pe total glove activity
The valus of 220 B pe on the glove falls within the order of magnitude of
beta activity reyguired on the gloves in order that a beta dose of 500 rep
at the 2 - 3 mm depth be delivered.
It also is a very amall fraction of
the total activity gathered on the filter papers.
é
5,
Which source of radiation, namely:
handling the filter papers or smear-
ing the black gimk on gloves, is the major contributor isa a matter of coni
jecture.
For instance, Btanley helped lift down & filter boxes, then removed
his gloves and bare-handed helped prepare about 20 filter papers for shipment.
On the other hand, Lang lifted 6 filter boxes and helped staple papers keeping his gloves on all the while axcept for a changes of gloves after lifting
COPIED/DQE.
LANL RO”
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PRIVACY ACT MATERIAL REMOVED
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