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Xe-135 Production from Cf-252

Description: 135Xe is a good indicator that fission has occurred and is a valuable isotope that helps enforce the Comprehensive Test Ban Treaty. Due to its rather short half life and minimal commercial interest, there are no known sources where 135Xe can be purchased. Readily available standards of this isotope for calibrating collection and analytical techniques would be very useful. 135Xe can be produced in the fissioning of actinide isotopes, or by neutron capture on 134Xe. Since the neutron capture cros… more
Date: March 1, 2012
Creator: McGrath, C. A.; Houghton, T. P.; Pfeiffer, J. K. & Hague, R. K.
Partner: UNT Libraries Government Documents Department
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Impact of Fission Products Impurity on the Plutonium Content of Metal- and Oxide- Fuels in Sodium Cooled Fast Reactors

Description: This short report presents the neutronic analysis to evaluate the impact of fission product impurity on the Pu content of Sodium-cooled Fast Reactor (SFR) metal- and oxide- fuel fabrication. The similar work has been previously done for PWR MOX fuel [1]. The analysis will be performed based on the assumption that the separation of the fission products (FP) during the reprocessing of UOX spent nuclear fuel assemblies is not perfect and that, consequently, a certain amount of FP goes into the Pu … more
Date: September 1, 2013
Creator: Hiruta, Hikaru & Youinou, Gilles
Partner: UNT Libraries Government Documents Department
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Estimation of Fission Product Beta Activity in Uranium Containing U-237 and UX

Description: Abstract: "It has been found that a mixture of acetone and ethyl ether containing nitric acid will wash uranium and 98 per cent of its natural daughters from a celluloss pulp column. Eight per cent of a "fission product" spike also comes through in this fraction but may be reduced by suitable modifications. A second development with two molar hydrochloric acid washes out 83 per cent of the original spike activities, and an additional three per cent is obtained by extruding the column, ashing, a… more
Date: 1951
Creator: Meinhard, J. E.
Partner: UNT Libraries Government Documents Department
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Separation of Beryllium from Fission Products in a Nitrate Medium - Preliminary Experiments Using Solvent Extraction

Description: Preliminary experiments using acetylacetone in the presence of ethylenediaminetetraacetic acid to separate major quantities of beryllium from fission products are reported. Using 2M beryllium solutions, decontamination factors of the order of 10/sup 3/ were obtained with trace quantities of the more important fission products. This is sufficiently encouraging for the work to be repeated at higher activity levels.
Date: March 1963
Creator: Aggett, J
Partner: UNT Libraries Government Documents Department
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IMPACT OF FISSION PRODUCTS IMPURITY ON THE PLUTONIUM CONTENT IN PWR MOX FUELS

Description: This report presents the results of a neutronics analysis done in response to the charter IFCA-SAT-2 entitled 'Fuel impurity physics calculations'. This charter specifies that the separation of the fission products (FP) during the reprocessing of UOX spent nuclear fuel assemblies (UOX SNF) is not perfect and that, consequently, a certain amount of FP goes into the Pu stream used to fabricate PWR MOX fuel assemblies. Only non-gaseous FP have been considered (see the list of 176 isotopes consider… more
Date: March 1, 2012
Creator: Youinou, Gilles & Alfonsi, Andrea
Partner: UNT Libraries Government Documents Department
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Identification of Reaction Products Formed During Magnesium Reduction of Uranium Tetrafluoride: Report

Description: Abstract: "This report describes the results of X-ray diffraction examination of reaction products from a series of experiments performed by Mallinckrodt Chemical Works as an acid in understanding the process of bomb reduction of UF4. UF4 is initially reduced to UF3 by magnesium at 560 C., and subsequently to metal at 600 C. MgF2 from the initial reaction forms a coating on the magnesium which retards the final spontaneous reaction."
Date: May 15, 1953
Creator: Schwartz, C. M. & Vaughan, D. A.
Partner: UNT Libraries Government Documents Department
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Some Studies of the Products of the High-Energy Fission Process

Description: Abstract: "The energy-dependence of the formation cross section of certain nuclides formed in fission of uranium and thorium has been studied. Excitation functions in the hundred-Mev region are given for Ni66, Zr97, Ag111, Ba131, and Ba139. Protons, deuterons, and alpha particles from the Berkeley 184-inch frequency modulated synchro-cyclotron were used to induce the activities."
Date: December 23, 1952
Creator: Lindner, H. & Osborne, R. N.
Partner: UNT Libraries Government Documents Department
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HAPO IB Fission Product Shipping Cask Design Evaluation Report

Description: As a result of the interest in fission products for use as heat sources and/or radiation sources, in early 1960. Hanford was authorized to supply a semi-refined cerium-144 rare earth product to Oak Ridge National Laboratories. Facilities were installed for collecting this product and a cask war designed for shipping this product as a stabilized, dry powder. Since that time, numerous improvements have been made in the design of the HAPO I cask as described in Revision O of this document. In add… more
Date: December 28, 1962
Creator: Smith, C. W.
Partner: UNT Libraries Government Documents Department
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A Mass Spectrograph for the Analysis of Fission Product Mixtures

Description: From introduction: "The analysis of mixtures of fission products with a mass spectrograph offers certain advantages. A chemical separation of the fission products found in the solution at Hanford is not necessary with the mass spectrograph technique. A sample of the mixtures can be placed on the sample holder and then the sample holder is mounted in the mass spectrograph. This reduces the amount of handling of the active solutions to one relatively simple and short operation. The health hazards… more
Date: June 12, 1946
Creator: Lewis, Lloyd G., 1917-
Partner: UNT Libraries Government Documents Department
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The Less Familiar Elements in the Atomic Energy Program

Description: Many factors are responsible for the rapid growth of analytical chemistry during the past ten to fifteen years. One of the most important of these factors is the greatly increased significance to present day chemistry of many elements that in the recent past were principally chemical curiosities. Since the Atomic Energy program is concerned with many such elements, it is of interest to discuss the cause for this concern and the resulting effect on the field of analytical chemistry. A number … more
Date: October 12, 1953
Creator: Bushey, A. H.
Partner: UNT Libraries Government Documents Department
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Angular Distribution of Fragments from Neutron-Induced Fission

Description: The angular distribution of fission fragments from the neutron-induced fission of several isotopes has been studied. Distributions were observed for thermal neutrons on U233 and U235, Lady Godiva leakage neutrons on U235 and U238, and 14 Mev neutrons on U233, U235, U238, Th232, and Np237. No anisotropy was observed for thermal neutron fission, whereas for Lady Godiva neutrons and 14 Mev neutrons the probability of fission along the axis of the neutron beam was determined to be higher than for f… more
Date: May 7, 1953
Creator: Brolley, John Edward, 1919- & Dickinson, W. C.
Partner: UNT Libraries Government Documents Department
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Fission Product Poisoning in a Pile

Description: Abstract. The effect of the neutron flux on the relative importance of different fission product poisons is discussed. The general expression for the poising of a fission product is given with the various equations for special cases of interest. The formulae are applied to the problem of finding the poisoning due to fission products at the end of one day in a pile operating with a flux of 4 x 10(14) neutrons/cm(2)/soc. These results are summarized in the table on page 12. Appendix I contains a … more
Date: December 15, 1944
Creator: Way, Katharine, 1903-
Partner: UNT Libraries Government Documents Department
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Metabolism of Fission Products in Man: Marshallese Experience

Description: Information on the metabolism of fission products in man has been obtained largely from studies carried out with parenterally-administered soluble salts of radioisotopes administered in medical treatment or in tracer studies. The recent development of the whole-body gamma spectrometer with its highly sensitive detection system has been of considerable value in extending these studies by providing data on very low levels of isotopes in man over long periods of time.
Date: December 7, 1962
Creator: Cohn, S. M.
Partner: UNT Libraries Government Documents Department
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Plutonium Fuel Programs at Argonne National Laboratory

Description: Most of the plutonium fuel programs at ANL are aimed at the utilization of plutonium in fast reactor power systems. The principal incentive and instrument for the development of plutonium-bearing fuels is the second loading of KBR-II.
Date: unknown
Creator: Foote, Frank G. (Frank Gale), 1906-.
Partner: UNT Libraries Government Documents Department
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