QB ADI RA Nd ak 74 of 16 ane C-: Series eB a wa i Cp oF Copy No. pages 3 This document consists of UNITED STATES _ ATOMIC ENERGY COMMISSION WASHINGTON, D. C.. duly 31, 1950 My dear Mr. Secretary: The Atomic Energy Commission is aware through our association with the Military Liaison Committee of some of the diffi- culties that are arising in the Department of Defense with regard to supporting the atomic weapons tests scheduled for Eniwetok in the spring of 1951 (Operation GREENHOUSE). We are informed fur- ther that in discussing a continental test site as a supplement or alternative for Eniwetok, the question has been raised whether large scale tests may be dispensed with at this time, It is the purpose of this memorandum to inform you briefly the reasons why such tests are a vital part of the atomic weapons program. The test program planned for Operation GREENHOUSE has three aspects of cutstanding importance: - (1) It has an immediate bearing on the quality of the United States stockpile of atomic bombs; (2) It 1s intended to develop an important body of information on the blast and radiological effects of atomic weapons; (3) It is expected to make a direct and significant contribution to our understanding of the technical and economical feasibility of a thermonuclear weapon, which is now inadequate. of these bombs will have néwnuclear configurations which, ‘in combination with newly designed non-nuclear components, gonsiderable extension of the known weapons art. | will marka. oo. Vance of this latter bomb is thatit maybe carried by smaller aircraft than are required to carry the present stockpile weapon, ana for the same reason will be better adapted for use in the most ‘promising guided missiles now under development. It should therefore increase the flexibility of use of atomic weapons, as in tactical operations in the field. ~ jj] - : Cotes Cg OB i'd pal tt ahaa “ef defi - Qs PTD) S48 roaolhleaJ ANYeRsieroeze Vaiss pe tied Benes A Ye"The document cantaina Rested Date as defined hv the Atomle Enarny at 1994, Unauthorized dlaciceureaud to Aciministrative ond Crindnal Sancti } — } Ads BBQ) FBP Adis a ® 4 ae . *

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