Tone Peel
Erhibit L
PRIVACY ACT MATERIAL REMOVED
May 24, 1948
TO:
"
L. H. Henpelnann, H-Divyision
:
EROMs
‘Js 0, Boffasn
Oo
SUBJECT: DOSAGEESTIMATES ON SARDSTONE PERSONNEL BASED ON IBIEHVIEWSWITH
1. Rod Spence supplied the following data on the hottest filter papers
measured st 10:05 p.m., Saturday, May 15, 1948. This is 36 hours after
zero tines
|
Paper #1 6 60" (153 om), 14 ywi/nr; or 450 ak/hr @ 2 bre
Paper f2 6 kO" (108 ou), 18 yxR/hr; or 600 nk/hr @ 2 hrs
The papers are sbout 10" x 18". The intensity at 36 hrs is based on a 1.2
power decay of Yintensity with time.
It is assumed that we have a point
source effect. Ths above sources referred ts 1 om distance become:
2.
Paper #1
1.0 x 10! ex/fr @1 em € 2 hrs
Paper $2
7 208 an/ar 6 1 on.@ 2 bre
First we shall estimate the order of magnitude of beta curies an the
filter sheets.
Fron measuremsnte on vater boiler ectivation of WaCl for
a we found
}
betas;
Bx 10° Pp cya/mgn NaCl
gemmas; 0.72 )nR/br/mgz Mall @ 1 em dist
The relation between B ani Yactivity is then 8 z 10*/o.72 or 1.1 x 109 B
cpn/jeR/hr for HaBh
Filter paper #2 above than had at 2 hrs tine:
7
Tx10°x14 210727
T-T x 10
COPIED/DOE
LANL Ra”
10
= 1. 3x 107
1.3 x 10°°/3.7 x 102° =z»
.
opm per sheet, total
cps per sheet,
0.35 B curies G 2 hrs per ‘sheet
PRIVACY ACT MATERIAL REMOVED
Exhibit L
RE
9g/,17 /;om
wy, CANCELLED
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misay
eCYT
UTH
Arar DOE/Oc
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