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MTA Target Equations

Description: In solving the two-group, two medium equations for neutron diffusion in a finite one-dimensional multiplying system, the equations in each medium can be solved, and the boundary conditions used to determine the coefficients. This direct attack involves eight simultaneous linear equations. The opportunities for error are numerous, and, frequently, a great deal of accuracy is lost by subtractions; hence, it is felt that an alternative method of solution, in which numerical errors would be less … more
Date: May 22, 1952
Creator: Kramer, H. P. & Adelman, F.
Partner: UNT Libraries Government Documents Department
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High Energy Proton Spallation--Fission of Uranium

Description: The fission and spallation reactions caused in uranium by bombardment with high energy protons (340 to 350 Mev) were investigated. The reaction products were separated from the target by chemical processes and identified by their radioactive properties. The relative yields of the observed fission products were measured, and the results plotted as a function of mass number. Several of the spallation products were identified and their yields estimated.
Date: May 28, 1951
Creator: Folger, R. L.; Stevenson, P. C. & Seaborg, Glenn T. (Glenn Theodore), 1912-1999
Partner: UNT Libraries Government Documents Department
open access

Investigations of Some Unusual Nuclear Reactions and Study of Double Beta Decay

Description: The acceleration of charged particles in the Berkeley 60-inch and 184-inch cyclotrons has made it possible to study a large variety of nuclear reactions. The characterization of the products from these reactions is done by chemical separations of elemental fractions and subsequent identification of the nuclides formed.
Date: May 1951
Creator: Sharma, Hari Dutta
Partner: UNT Libraries Government Documents Department
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Ion Exchange Experiments with Polonium

Description: The state of polonium in aqueous solutions was investigated by means of ion exchange equilibrium studies. The distribution of the polonium between the solid and liquid phases was determined for solutions of various compositions using both a cation and an anion exchanges. These studies show that in the absence of a complexing agent polonium is hydrolyzed to such a degree that it forms monovalent cations and anions whose charge was not investigated in this study.
Date: May 11, 1951
Creator: Tompkins, Edward R.
Partner: UNT Libraries Government Documents Department
open access

Investigation Of Windows And Shields For Neutron Point Sources

Description: An empirical approach for the evaluation of shielding materials for macrochemical manipulations of spontaneously fissioning heavy elements (curium and californium) has revealed interesting comparisons. High-density metal halide solutions were compared with lead glass and with rare earth glass for use as shielding windows. Laminated shields of lead-paraffin and uranium-paraffin were compared with water and with paraffin for shielding walls.
Date: May 20, 1959
Creator: Browne, Howard J.; Kaufmann, John A. & Garden, Nelson B.
Partner: UNT Libraries Government Documents Department
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Monthly Progress Report No. 120 - March 15, 1953 To April 15, 1953

Description: Progress on projects on experimental physics, theoretical physics, MTA Target-Physics Program, accelerator construction and operation, chemistry, biology and medicine, plant and equipment.
Date: May 1, 1953
Creator: University of California Radiation Laboratory
Partner: UNT Libraries Government Documents Department
open access

Full Scale 48 MC Cavity For Sparking Tests of Gaps Corresponding to 0.45 To 4.5 Mev Beam Energy

Description: It is proposed to test gaps corresponding to deuteron energies in the range of 0.45 to 4.5 Mev. The accelerator to be modeled is a 48 mc/sec cylindrical cavity in the TM010 mode with [formula] repeat length, [formula] gap, 0.25 megavolt per cavity foot peak r.f. gradient and strong focusing magnets alternating polarity at each drift tube.
Date: May 19, 1953
Creator: Unnam, Craig S.
Partner: UNT Libraries Government Documents Department
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