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SERVO SYSTEM FOR MAGNETIC CONTROLLED CONSTANT INTENSITY FLAT TOP BEAM SPILL- OUT

Description: It is noted that a uniform flat-top beam spill-out cannot be obtained in the Cosmotron by manual control. A servo system is proposed which will control this spill-out by sensing the external beam intensity, and correcting the magnet voltage to keep this intensity constant. This servo must operate through the transfer function of the main ignitron system and the flat-top filter. An analysis of these special transfer functions is presented. (J.R.D.)
Date: November 21, 1961
Creator: Cottingham, J.G.

FISSION FRAGMENT ENERGY DEPOSITION EFFICIENCY FOR THIN URANIUM-CONTAINING ELEMENTS AND THE FIXATION OF NITROGEN

Description: It is noted that in chemonuclear reaction systems the efficiency of conversion of nuclear to chemical energy is directly related to the fraction of the total fission fragment recoil energy liberated in the system which is directly absorbed by the chemical reactant. This fraction is termed the fission fragment energy deposition. The use of gas dosimetry for determining the deposition efficiency is described, and G value data are given for nitrogen fixation by fission fragment energy. (J.R.D.)
Date: March 1, 1963
Creator: Steinberg, M.; Loffelholz, M. & Pruzansky, J.