CHAPTER 1 DEVICES AND TECHNICAL CONCLUSIONS 1.1 GENERAL OBJECTIVES The objectives of Operation Castle were threefold: first, to fire some seven experimentn! devices, six of which were to be in the megaton range and several of which were to be proci tests of weapons; second, to obtain th2t diagnostic information on these devices which is necéssary to evaluate properly their performance in case of either success or failure; and third, to obtain effects information for megaton-region devices. re a a [The first five of these were designed by the Los Alamcs Scientific Laboratory (LASL), and the last two were designed by the University of California Radiation Laboratory (UCRL) at Livermore. During the operation, observations were made which allowedchangesinthe devices and even removed some from the schedule. The first two fired,! Agave yields appreciably above those expected\.. | . T “Thesurprisinglylow yield uf oo ~__ thethird shot fired, cOmbined withth: ~ of the diagnostic measur...ents acs cisted with that shot, led to a belief that the, Would not be profitable s ul the. cli» that shot was canceled. Thustheoperation co..." ~ F f 4 wwiththefiringofsixshots 7 ’i + . Pages 10 Yiruw ib Deleted.