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ANNUAL SUMMARY RESEARCH REPORT IN CHEMISTRY, JULY 1, 1959-JUNE 30, 1960

Description: Pilot-plant work on ion exchange separation of rare earths indicates that elution with HEDTA on hydrogen-form resin should conserve Sc. Then, after Sc, Lu, Yb, Tm, and Er are diverted to an auxiliary bed, the remaining rare earths can be resolved with EDTA. Data from investigations of rare-earth glycolate solubilities at 20 and 60 deg C are tabulated. In other work, the effectiveness of glycolic acid for fractionally precipitating rare earths was investigated, and the solubilities and compositi… more
Date: September 1, 1960
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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RESRAD update

Description: A microcomputer program called RESRAD, which implements a pathway analysis method for radiological risk assessment, was developed by Argonne National Laboratory (ANL) in 1989. This program is used to derive allowable residual concentrations of radionuclides in soil and to predict effective dose equivalents and excess cancer incidence risks incurred by an individual exposed to radioactive materials. Since its development, the RESRAD code has been adopted by DOE in Order 5400.5 for the derivation… more
Date: May 1, 1993
Creator: Yu, C.; Cheng, J. J.; Zielen, A. J.; Jones, L. G.; LePoire, D. J.; Wang, Y. Y. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Status report on LWR spent fuel IAEA leach tests

Description: Spent light-water-reactor (LWR) fuel with an average burnup of 28,000 MWd/MTU was leach-tested at 25/sup 0/C using a modified version of the International Atomic Energy Agency procedure. Leach rates were determined from tests conducted in five different solutions: deionized water, sodium chloride (NaCl), sodium bicarbonate (NaHCO/sub 3/), calcium chloride (CaCl/sub 2/) and Waste Isolation Pilot Plant B brine solutions. Elemental leach rates are reported based on the release of /sup 90/Sr + /sup… more
Date: March 1, 1980
Creator: Katayama, Y.B.; Bradley, D.J. & Harvey, C.O.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Entry State Distributions of Discrete Yrast Transitions in Heavy Ion Induced Fusion Reactions

Description: Gamma rays emitted during yrast transitions from compound nuclei are detected with a 4..pi.. multielement gamma ray detector system. Both total pulse height (H) and coincidence fold data (k) are obtained for each event. Results presented include entry state distribution states, k and H projections for some of these distributions, and k and H as a function of spin of the yrast transition. 5 figs. (DWL)
Date: May 28, 1985
Creator: Lee, I. Y.; Baktash, C.; Beene, J. R.; Fewell, M. P.; Halbert, M. L.; Johnson, N. R. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Radiochemical studies for the nuclear chemical mining of copper. [Nuclear explosive fracturing]

Description: Experiments were performed to study the long-term reactions of radioactive materials that would be produced in the nuclear chemical mining of chalcopyrite copper ore. These reactions were carried out in autoclaves for up to eight months at 2.76 MPa of oxygen and 363 K. Dissolving rates of radioactive glass in copper-leaching product solutions were determined by the gamma-counting of solution aliquots. The glass decomposition rate was linear at approximately 1 x 10/sup -10/ kg/s.m/sup 2/. A radi… more
Date: February 19, 1976
Creator: Jackson, D. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Appendix to Health and Safety Laboratory environmental quarterly, March 1, 1976--June 1, 1976. [Tabulated data on content of lead in surface air and /sup 7/Be, /sup 95/Zr, /sup 137/Cs, /sup 144/Ce, and /sup 90/Sr in surface air, milk, drinking water, and foods sampled in USA]

Description: Tabulated data are presented on: the monthly deposition of /sup 89/Sr and /sup 90/Sr at some 100 world land sites; the content of lead and /sup 7/Be, /sup 95/Zr, /sup 137/Cs, and /sup 144/Ce in samples of surface air from various world sites; and the content of /sup 90/Sr in samples of milk, drinking water, and animal and human diets collected at various locations throughout the USA. (CH)
Date: July 1, 1976
Creator: Hardy, E. P. Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Performance testing of radiobioassay laboratories: In vivo measurements, Final Report

Description: A study of two rounds of in vivo laboratory performance testing was undertaken by Pacific Northwest Laboratory (PNL) to determine the appropriateness of the in vivo performance criteria of draft American National Standards Institute (ANSI) standard ANSI N13.3, Performance Criteria for Bioassay.'' The draft standard provides guidance to in vivo counting facilities regarding the sensitivity, precision, and accuracy of measurements for certain categories of commonly assayed radionuclides… more
Date: April 1990
Creator: MacLellan, J. A.; Traub, R. J. & Olsen, P. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Measurement of Leaching From Simulated Nuclear-Waste Glass Using Radiotracers

Description: The use of radiotracer spiking as a method of measuring the leaching from simulated nuclear-waste glass is shown to give results comparable with other analytical detection methods. The leaching behavior of /sup 85/Sr, /sup 106/Ru, /sup 133/Ba, /sup 137/Cs, /sup 141/Ce, /sup 152/Eu, and other isotopes is measured for several defense waste glasses. These tests show that radiotracer spiking is a sensitive, multielement technique that can provide leaching data, for actual waste elements, that are d… more
Date: September 1982
Creator: Bates, J. K.; Jardine, L. J. & Steindler, M. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Deexcitation processes in nuclear reactions. Progress report, May 1, 1976--July 31, 1977. [Summaries of research activities at Purdue University]

Description: A number of nuclear reaction studies are in progress. Measurements of the energy dependence of recoil properties of /sup 131/Ce, /sup 131/La, and /sup 131/Ba formed in the interaction of /sup 238/U with 0.8-400 GeV protons are described. Preliminary results on the angular distribution and differential ranges of Sc and Ba nuclides formed in the interaction of /sup 238/U with 0.8, 3.0, and 11.5 GeV protons are given. Preliminary angular distribution measurements of products formed in the interact… more
Date: August 1, 1977
Creator: Porile, N. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Formation of large target residues in intermediate energy nuclear collisions

Description: We have used radiochemical techniques to measure the yields, angular distributions and velocity spectra of the large (A/sub frag/ greater than or equal to 2/3 A/sub tgt/) target residues from the fragmentation of /sup 197/Au by intermediate energy /sup 12/C, /sup 20/Ne, /sup 32/S, /sup 40/Ar, /sup 84/Kr, and /sup 139/La projectiles. The fragment moving frame angular distributions are asymmetric for the lighter projectiles (C-Ar). The fragment velocity spectra are Maxwellian for the Kr induced r… more
Date: April 1, 1987
Creator: Loveland, W.; Aleklett, K.; Sihver, L.; Xu, Z. & Seaborg, G. T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Effects of doping on hybridization gapped materials

Description: Doping studies are presented on three materials exhibiting hybridization gaps: Ce{sub 3}Bi{sub 4}Pt{sub 3}, U{sub 3}Sb{sub 4}Pt{sub 3}, and CeRhSb. In the case of trivalent La, Y, or Lu substituting for Ce or U, there is a suppression of the low temperature gap and an increase in the electronic specific heat, {gamma}. In the case of tetravalent Th substitutions for U there is no change in {gamma} and in the case of tetravalent Zr substitution for Ce in CeRhSb, there is an enhanced semiconductor… more
Date: June 5, 1991
Creator: Canfield, P. C.; Thompson, J. D.; Hundley, M. F.; Lacerda, A. & Fisk, Z.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Quantitative determination of tritium in metals and oxides

Description: Metallic samples are analyzed for tritium by heating the sample at 1225 K in a moist oxygen stream. The volatile products are trapped and the tritium is quantitatively determined by scintillation spectroscopy. The method is used to determine less than 1 ppb of tritium in 100-mg samples of lithium, iron, nickel, cerium, plutonium, and plutonium dioxide. Analysis of 18 cuts of a tritium-zirconium, copper foil standard over a 3-yr period showed a tritium content of 45 ppM and a standard deviation … more
Date: April 1, 1979
Creator: Vance, D.E.; Smith, M.E. & Waterbury, G.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Leaching of fully radioactive high-level waste glass

Description: As part of continuing Department of Energy (DOE)-sponsored studies in waste management, the Pacific Northwest Laboratory (PNL) has been conducting the High-Level Waste Immobilization Program. The purpose of this program is to develop and demonstrate technology for incorporating nuclear wastes into final waste forms. The preparation and leach testing of fully radioactive, zinc borosilicate glass, which was prepared from power reactor waste, are described. Leach testing using the International At… more
Date: September 1, 1978
Creator: Bradley, D.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Polymer surface coatings for downconversion of uv radiation and inhibition of photodegradation. Semiannual technical status report, June 1978--January 1979

Description: Cerous (III) polymethacrylate (CPMA), prepared by saponifying a commercial polymethyl methacrylate (PLEXIGLAS) and subsequently neutralized with cerous nitrate, were cast into film from its ethyl acetate solution. CPMA films were subjected to intense uv radiation in order to accelerate the solarization, and they were found to be substantially less susceptible to uv induced degradation than the control which was the film cast from polymethacrylic acid (PMA). A set of CPMA coated PLEXIGLAS films … more
Date: January 27, 1979
Creator: Yen, W M & Yu, H
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Neutron activation techniques for the measurement of trace metals in environmental samples

Description: Neutron activation techniques for measuring trace metals in fresh waters, seawater, marine organisms, sediments, and atmospheric particulates are discussed. Principles of neutron activation analysis, neutron irradiation facilities and procedures, and sample preparation including preconcentration and postirradiation separations are outlined. (109 references) (LK)
Date: January 1, 1974
Creator: Robertson, D. E. & Carpenter, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Research in Nuclear Physics. Progress Report No. 7

Description: A twenty-inch analyzing magnet has been completed except for the final trimming of the pole pieces. In onder to further examine the systematics in the angular distribution of elastically scattered alpha particles, the scattering of alpha particles from spectroscopically pure O/sup 16/ and hydrogen sulfide gases was studied. The change of the static quadrupole interaction in indium metal wth temperature was investigated. Results give a value Q = 10/sup -24/ cm/sup 2/. An experimental study of th… more
Date: June 15, 1957
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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