conveniently be reached between about 400 and 1000 kilometers and well out of the sensible atmosphere." Secondly, Bradbury recommends an experiment to study the actual effects of the XW-SOX1Y2 utilizing that device at an altitude of 125 to 150 kilometers and making certain detailed output measurements. Hi He notes the DOD proposals for testing in that regime and emphasizes that we must get the AEC purposes fulfilled as well as the DOD purposes even if it means additional tests. Bradbury finally notes that LASL makes no recommendation for tests in a category entitled "Physics Experiments to Determine Future Course of Action," which apparently is a Livermore category. He feels it is more important at this time to determine the actual performance of the untested portion of the stockpile, particularly the designs which have evolved during the moratorium. He states, “With unlimited atmospheric testing, our test proposals would certainly consider the long range ‘significance of physics experiments upon weapons design. od, we believe of a two to three month test peri Under the present rules, however, tha immediately best served by confirmatory, that the country's interest are experiments that nts. To prepare for meaningful - applicable, exploratory experime essentially to extremes is, in our opinion, will push the state of the art impossible to do in three months."

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