Botes on Mtg, 25 Aug '51 Difficulties: (1) Most of the lines do not seem to be in the right part of the spectrum (i.e., the visible or detecting range of the instrument). oe ined (2) DELETED DE! ETED ee DELETED — (3) MNRL's Greenhouse-George records have so fer given no indication of such lines. ¥. Effecta Thies is mentioned because in all probability we shall not be able to avoid making a few such determinations. It is hoped that they can be kept to the minimm, e.g., measurements of blast and thermal radiation as functions of distance. Ge Others In this category are included ideas which have been mentioned in a very preliminary fashion and which have received no real consideration from the practical point of view. Among them are the x-ray experiment, @ suggestion by Alvarez for a temperature measurement, neutrino, neutronneutron scattering, and electromagnetic effect experiments. IV. MODES OF OPERATION \ In Table 3 are listed the experiments of Sec III, with comments as to their feasibility as a function of ‘the three types of operation discussed below. A. Airplane It has been suggested that the bomb be put in a drone plane and detonated along with the plane. At first glance, this has an operational advantage in that the bomb could be assembled in the plane at a convenient field, detonated over the Pacific with no particular worry about a site. A plane of the C-124 type has been spoken of; this can carry up to 75,000 _ Ibs to an altitude of 10,000 ft, and could be ready within six months. DELETED DELiy DELETED On the other hand, as can be seen from Table 3, most if not all of the diagnostic measurements are ruled out by such an approach. Further, there is the argument that drones are quite difficult to control: there has not been an operation in the past where all functioned properly, -15- es ,

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