"beeper"™ pilot Pilot operator of the radio equipment used to control drone aircraft, On testing missions, beeper pilot was aboard the "mother" planes, (or control aircraft), beta particle A form of radioactivity in which betaparticles are emitted from the radioactive body. boosted weapon A weapon to which some gaseous substance has been added such as deuterium, tritiun, or lithium hydride to produce significant increase in fissioning and consequent increase in yield, boosting If a large supply of neutrons is suddenly injected into a system undergoing fission, while neutron miltiplication is still occuring (before appreciable expansion has taken place), the total number of fissions and thus the efficiency and energy yield will be greatly increased, The first test of boosting was made in the ITEM Shot during Operation GREENHOUSE, 1951, calorimeter Apparatus for measuring quantities of heat, Class A weapons A term commonly applied to me of the four (or Class B, C, or D) clean weapon general classes of thermonuclear weapons, specified by the Joint Chiefs of Staff, for development. A weapon so designed that upon detonation the amount of contaminating material, in the form of either fission fragments or irradiated material (or both), is relativel low by comparison with other possible design variations of the same mark numbered weapon, A weapon may also be "clean" by comparison with different mark numbered weapons of the same general yield, cloud tracking The process of following the nuclear cloud with aircraft in order that sampling aircraft could move readily vectored into the cloud at the exact times required for obtaining the specific samples, 320 AFWIghL SVEH~2-003