ML19220D043
| ML19220D043 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 04/02/1979 |
| From: | Kammerer C NRC OFFICE OF CONGRESSIONAL AFFAIRS (OCA) |
| To: | Cubie J CONGRESS (JOINT & ROTATING COMMITTEES, ETC.) |
| References | |
| NUDOCS 7905160225 | |
| Download: ML19220D043 (1) | |
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UNITED STATES 7:
NUCLEAR REGULATORY COMMISSION
,1 C p.- t/
wAsHmCTON. D. C. 20555 g
s; April 2, 1979
., < ng (3* M S i r.
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- M Jim Cubie b/en,7Ed'/)
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W,fgr FRCM:
Carl Kammerer g g g-li
SUBJECT:
THREE MILE ISLAt;D THER"0LUMIt!ESCEt;T l
L.
a-COSIMETER (TLD) DATA 4
ei~
Enclosed are three sets of TLD data collected around the Three Mile Island facility. TLD's measure l
the direct radiation at the locaticr. in the environ-3 ment where they are placed.
It is routine to have TLG's placed at key locations surrounding all l
cperat Mg power reactors. They measure both natural g
background radiation plus any additional radiation
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contributed by thd facility.
TLD's are normally
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exchanged on a quarterly basis.
In the Three Mile Island case, the radiation exposure measured by l
the TLD's was primarily a result of passing " clouds" l
of radioactive gases released from the facility.
1 The first set of data represents the total exposure
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(background plus that frcm the incident) from the beginning of the calendar quarter until 3/29/79.
These data are frcm licenses ;:osted TLD's.
The f
next two sets of TLD data represe.
exposure l
periods of 24-48 hours.
One set is iicensee data j
and one set is flRC data.
yy, l
f Carl Kan,t.erer grj~/ 3 J
PS:
BRH-FDA posted 250 TLD's. in the plant environs
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to a distance of 20 miles from the site.
These were-g--.,J posted on 3/31 and 4/1 and will remain posted for
!!^k$i several weeks.
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