Download or read book Some He Tests and Observations on Craters and Base Surges written by Donald C. Campbell and published by . This book was released on 1951 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: A series of He Tests was planned at the Nevada Test Site preparatory to the nuclear explosions in Operation JANGLE. These HE shots were designed to obtain, under similar conditions, data to be used as a basis for making predictions concerning the phenomena to be studied during the nuclear explosions. The HE program, as originally conceived, was expanded to permit further study of the base surge and crater phenomena. Ten HE shots (a total of thirteen explosions) were conducted in the upper Yucca Flat and Frenchman Flat areas. Practically all of the instrumentation by the various participating agencies was done on the first series (HE-1 through HE-4). With a few minor exceptions, all instrumentation performed in a satisfactory manner. Shot HE-2 consisting of 40,000 pounds of TNT was fired with the c. g. 4.63 feet below the surface. There was a high order of detonation and the shot was completely successful.