‘
408483
sists 0 ao
Shis document con
A
lt. .
Copy LL. ee
wane
137&th AEC 5, Letter to the President qomerding Project MILLRACH and Additional
| Meeting
b 528-58
snots
8
tor
Operation H.
General Starbird discussed
with the Commaissicners the
question of including additional shots in Operation HARDTACK.
(451-1958
matcly eight megatons of fission yleld would be contributed tu the
COLLECTION RG B26 - Hie of The Secretary
than Mr. ldbby's original caiculations.
atmosphere by the shots already approved for operation HARDTACK,
General Starbird replicd that the total figures for the amount of
fission that would be spread world-wide was now somewhat higher
Box no.2OS_(NN 3 -326=93—070)
rotpen MRA W 7 Hadtack vol: 3
General Starbird then reviewed the additional shots to be
included in HARDTACK and said their contribution to the atmosphere
of fallout would not be significant.
However, 1f one of the
contingency shots now being considered for HARDTACK 1s included,
q
there might necessarily be an increase in Mr, Libby's calculations
on fallout from the teat.
During the preceding discussion, Col. Sherrill loft the
neeting briefly.
Mr. Potts said he believed Mr, Libby's original calculations
incladed figures on the pronused ecntLagency shot and expressed
surprise that there was a considerable inerenzse
in the estimated
figures on HARDTACK fallout,
At this point, Mr, Grahan Icft the meeting briefly.
Referring to a chart, General Starbird explained in detail
————
r
REPOSITORY NARA - Co(leye Pa
Mr. Ploberg commented that Ur. Libby had calculatedthat approxi-
the size of the proposed additional shots and contingency shots as
weil aa the estimated world-wide fallout from these shots,
Pe Epa
BEST COPY AVAILASLE
DEPARTMENTOF FREBUYDET
IST REVIEW-DATI: S-24-95°
AUTHORITY: DAOC IMIDE Fanp ft fs
NAME: Leh,Kaiweee |
4:
2ND REVIEW-DATU: SekZ~yt J . BDoivre
AUTHORITY; ADD
Passe
Name: Bab shanorgtr gegen
He
wiles
!
BRS
a
'
>