135195

> ATOMIC ENEMGY

F. B. Forzel,

Program 6

(Norv. 22, 1952)

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PURPOSE OF TESTS

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66-767
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With due regard for the preliminary nature of teste results to date, it

{is useful and probably Justified to draw some tentative conclusions.

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‘The

interest in blast on Operation Ivy falls into three phases, which formed
the framevork of Program 6,
Firat, Decnase of the large aize of the veapon, the earth's atuonyhere

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can no longer be consideredhoangeneous in stulyingits blast hyrodynunics.
On the scale of these boubs, particularly MIKE, at pressures of practical

& interest, the bosbwasLiterally burst inarelatively thin lejer of air at

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eee surfaces.meet of tho blast wave propagatedin anear vacuum at
highaltitede vherescund velocities arelow andvindsare highsodvariable.
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