CHAPTER 1 DEVICES TESTED 1.1 MIKE DEVICE 1.1.1 Objective of Detonation The objective of Mike Shot was to test, by actual detonation, the theory of design for a thermonuclear reaction on a large scale, the results of which test could be used to design, test, and produce stockpile thermonuclear weapons. 1.1.4 Yield In order to be assured that a thermonuclear reaction progressed to a desired magnitude, the Mike device was essentially overdesigned. The yield of this device is considered to be within the range of 6 to 12 Mt. A better yield figure is not available at the date of writing, pending a more complete analysis of test data.*f *Application of the LASL analytic solution method to the EG&G photographic data has reSulted in thefollowing aa the fireball yield figure as of May 15, 1953: Mike, 11 +1 Mt; King, 550 + 20 kt. tSee note on p. 14.