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in subjects: "Alpha Decay Radioisotopes"

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Gamma densitometer for measuring Pu density in fuel tubes

A fuel-gamma-densitometer (FGD) has been developed to examine nondestructively the uniformity of plutonium in aluminum-clad fuel tubes at the Savannah River Plant (SRP). The monitoring technique is ..gamma..-ray spectroscopy with a lead-collimated Ge(Li) detector. Plutonium density is correlated with the measured intensity of the 208 keV ..gamma..-ray from /sup 237/U (7d) of the /sup 241/Pu (15y) decay chain. The FGD measures the plutonium density within 0.125- or 0.25-inch-diameter areas of th… more

Date: January 1, 1982

Creator: Winn, Willard G.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Research in radiobiology. Annual report of work in progress in the internal irradiation program

Separate abstracts were prepared for 13 sections of this report. A list is included of publications during the time period covered by this report.

Date: March 31, 1977

Creator: Jee, W.S.S.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Safety analysis report for the /sup 238/PuO/sub 2/ fuel form facility

The Plutonium Fuel Form (PuFF) Facility has been constructed at the Savannah River Plant to manufacture 30 to 60 kg/yr of /sup 238/Pu fuel forms for space power applications. This facility is located in the existing Building 235-F near the geographical center of the Savannah River Plant (SRP) site. Pilot production is scheduled to begin in July 1977, with full-scale production in April 1978. The process line of the facility consists of nine separate, interconnected shielded cells; five shielded… more

Date: August 1, 1977

Creator: Angerman, C.L.; Bickford, D.F.; Gould, T.H. Jr. & Smith, P.K.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Octupole Correlations in the Heavy Elements

The effects of octupole correlations on the nuclear structure of the heavy elements are discussed. The cluster model description of the heavy elements is analyzed. The relevance of 2/sup 6/-pole deformation and fast El transitions to an octupole model is considered. 30 refs., 21 figs., 1 tab.

Date: January 1, 1986

Creator: Chasman, R. R.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Environmental and radiological safety studies. Interaction of /sup 238/PuO/sub 2/ heat sources with terrestrial and aquatic environments. Progress report, July 1--September 30, 1977

The containers for /sup 238/PuO/sub 2/ heat sources in radioisotope thermoelectric generators are designed with large safety factors to ensure that they will withstand reentry from orbit and impact with the earth and safely contain the nuclear fuel until it is recovered. Existing designs have proved more than adequately safe, but the Office of the Assistant Director for Space Application of the ERDA Division of Nuclear Research and Application continually seeks more information about the heat s… more

Date: November 1, 1977

Creator: Waterbury, G.R. (comp.)

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Cycling of transuranic radionuclides in the Columbia River, its Estuary, and the Northeast Pacific Ocean. Progress report, February 1981-December 1981

Progress from February, 1981 through December, 1981 in research dealing with the behavior of transuranic and other radionuclides in the Columbia River downstream from the Hanford Reservation is summarized. All of the objectives outlined in last year's renewal proposal except one were met. The analyses of all cores raised from the Columbia River between McNary Reservoir and the mouth of the river were completed. This permits the establishment of a budget for Pu and Am. Analyses of four natural m… more

Date: December 1, 1981

Creator: Beasley, T.M.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Neutron multiplicities for the transplutonium nuclides

This paper continues, with respect to the transplutonium nuclides, earlier efforts to collate and evaluate data from the scientific literature on the prompt neutron multiplicity distribution from fission and its first moment <nu> = ..sigma..nuPnu. The isotopes considered here for which P/sub nu/ and or <nu> data (or both) were found in the literature are of americium (Am), curium (Cm), berkelium (Bk), californium (Cf), einsteinium (Es), fermium (Fm), and nobelium (No).

Date: January 1, 1985

Creator: Holden, N. E. & Zucker, M. S.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Analysis of soil and water at the Four Mile Creek seepline near the F H areas of SRS

Several soil and water samples were collected along the Four Mile Creek (FMC) seepline at the F H Areas of the Savannah River Site. The samples were analyzed for concentrations of metals, radionuclides, and inorganic constituents. The results of the analyses are summarized below for the soil and water samples.

Date: June 20, 1990

Creator: Haselow, J. S.; Harris, M.; Looney, B. B.; Halverson, N. V. & Gladden, J. B.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Environmental impact of uranium mining and milling: an American view

The radiation dose rates to man from uranium milling activities are discussed. The sources of radiation, the radioisotopes involved, and the environmental exposure pathways are described. Risks of cancer to exposed individuals are presented and recommendations made for mitigation of contamination. (ACR)

Date: August 18, 1981

Creator: Momeni, M. H.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Radon suppression in storage silos at the United States Department of Energy Feed Material Production Center, Fernald, Ohio

Two silos at the Department of Energy Feed Material Production Facility in Fernald, Ohio, contain an estimated 8800 metric tons of high-grade pitchblende ore residue solids, which contain approximately 3,300 curies (Ci) of radium and 1810 Ci of thorium. These silos are the subject of an on-going CERCLA RI/F Program. Fugitive radon emissions from the silos exceed EPA limits. In addition, structural analyses have revealed that the silos have little credible remaining design life. While pursuing f… more

Date: January 1, 1991

Creator: Land, R.R. (Bechtel National, Inc. (USA)); Biancheria, A. (Westinghouse Materials Co., Fernald, OH (USA)) & Craig, J.R. (USDOE, Washington, DC (USA))

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Total half-lives for selected nuclides

Measurements of the half-lives of {sup 3}H, {sup 10}Be, {sup 14}C, {sup 26}Al, {sup 40}K, {sup 39}Ar, {sup 53}Mn, {sup 87}Rb, {sup 92}Nb, {sup 129}I, {sup 138}La, {sup 147}Sm, {sup 176}Lu, {sup 174}Hf, {sup 180}Ta, {sup 187}Re, {sup 186}Os, {sup 190}Pt, {sup 204}Pb, {sup 210}Pb, {sup 210}Po, {sup 222}Rn, {sup 224}Th, {sup 226}Ra, {sup 227}Ac, {sup 228}Ra, {sup 228}Th, {sup 230}Th, {sup 232}Th, {sup 231}Pa have been compiled and evaluated. The effect of the {sup 14}C half-life value on carbon da… more

Date: January 1, 1989

Creator: Holden, Norman E.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Mixed field peronnel dosimetry: Part 1, High temperature peak characteristics of the reader-annealed TLD-600

The high temperature peaks (TL peaks 6--7) of TLD-600 are known to have higher responses to high LET radiation than to low LET radiation. These high temperature peak characteristics were studied for the automatic reader-annealed Harshaw albedo neutron TLD. The high temperature peaks response is linear for neutrons over the dose equivalent range tested (0.05--3 mSv of a {sup 252}Cf source moderated by a 15 cm radius polyethylene sphere), but is supralinear above 20 mSv of {sup 137}Cs photons. Th… more

Date: February 1, 1991

Creator: Liu, J.C. (Stanford Linear Accelerator Center, Menlo Park, CA (USA)) & Sims, C.S. (Oak Ridge National Lab., TN (USA))

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Environmental effects research. Environmental Research Division annual report, January-December 1983. Part 3

The Terrestrial Ecology group continued its involvement in the National Crop Loss Assessment Network, and studies of O/sub 3/ effects on winter wheat and soybeans were completed. Experiments on O/sub 3/ x SO/sub 2/ interactions on soybeans were also performed. The Microcosms for Acid Rain Studies (MARS) project had its first full year of research and much information concerning acid rain impacts on soil-plant systems was collected. A study of the influence of temporal variations in rain acidity… more

Date: December 1, 1984

Item Type: Report

Partner: UNT Libraries Government Documents Department

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1985 annual site environmental report for Argonne National Laboratory

This is one in a series of annual reports prepared to provide DOE, environmental agencies, and the public with information on the level of radioactive and chemical pollutants in the environment and on the amounts of such substances, if any, added to the environment as a result of Argonne operations. Included in this report are the results of measurements obtained in 1985 for a number of radionuclides in air, surface water, ground water, soil, grass, bottom sediment, and milk; for a variety of c… more

Date: March 1, 1986

Creator: Golchert, N.W.; Duffy, T.L. & Sedlet, J.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Ground-water flow and transport modeling of the NRC-licensed waste disposal facility, West Valley, New York

This report describes a simulation study of groundwater flow and radionuclide transport from disposal at the NRC licensed waste disposal facility in West Valley, New York. A transient, precipitation driven, flow model of the near-surface fractured till layer and underlying unweathered till was developed and calibrated against observed inflow data into a recently constructed interceptor trench for the period March--May 1990. The results suggest that lateral flow through the upper, fractured till… more

Date: October 1, 1991

Creator: Kool, J. B. & Wu, Y. S.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Derivation of uranium residual radioactive material guidelines for the Elza Gate Site

Residual radioactive material guidelines for uranium were derived for a large, homogeneously contaminated area at the Elza Gate Site in Oak Ridge, Tennessee. The derivation of the single-nuclide and total uranium guidelines was based on the requirement that the 50-year committed effective dose equivalent to hypothetical individual who lives or works in the immediate vicinity of the Elza Gate Site should not exceed a dose of 100 mrem/yr following decontamination. The DOE residual radioactive gui… more

Date: February 1, 1991

Creator: Cheng, J. J.; Yu, C. & Devgun, J. S.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Investigation of the transport of actinide-bearing soil colloids in the soil-aquatic environment

Research indicated that organic and inorganic particles strongly influence the distribution ratios of Am(III), Np(V), and Cm(III). Gel Permeation chromatography experiments indicate that distribution ratios are stongly dependent on the concentration of particles having molecular weights of approximately 50,000. These molecules or particles are probably polymers of humic acid. Particle-size dependent distribution ratios have been obtained for the Ritzville, Burbank, and Fuquay soils. Equations a… more

Date: November 1, 1978

Creator: Sheppard, J.C.; Campbell, M.; Kittrick, J. & Cheng, T.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Status of Data Testing of ENDF/B-V Reactor Dosimetry File

The ENDF/B-V Reactor Dosimetry File was released August 1979, and Phase II data testing started. The results presented here are from Brookhaven National Laboratory only, and are considered preliminary. The tests include calculated spectrum-averaged cross sections using /sup 235/U fission spectrum (Watt), /sup 252/Cf spontaneous fission spectrum (Watt and Maxwellian), and the Coupled Fast Reactor Measurement Facility (CFRMF) spectrum. 6 tables.

Date: January 1, 1979

Creator: Magurno, B. A.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Delayed neutron spectra and intensities from evaluated precursor data

Recently evaluated and model estimated precursor data are used with preliminary ENDF/B-VI fission yields to calculate total and time-group anti nu/sub d/ and spectra. 8 refs.

Date: January 1, 1985

Creator: England, T. R.; Brady, M. C.; Wilson, W. B.; Schenter, R. E. & Mann, F. M.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Least squares fit of thermal data for fissile nuclei

Since our previous paper was written, we have learned of one new set of measurements that would have been included had we known of it: Gwin, Spencer and Ingle's measurement of the nu-prompt ratios of the four fissile materials with respect to /sup 252/Cf. Their recently published paper reports revised final results for /sup 233/U, /sup 235/U and /sup 239/Pu and includes a measurement on anti nu/sub p/(241)/anti nu/sub p/(252) that was not attempted previously. In some of the fitted results repo… more

Date: January 1, 1984

Creator: Divadeenam, M. & Stehn, J.R.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Amchitka Radiobiological Program. Progress report, January 1977--December 1977. [/sup 3/H, /sup 90/Sr, /sup 239/Pu, /sup 240/Pu, /sup 40/K, /sup 7/Be]

The Amchitka Radiobiological Program began in 1970 and is a continuing program to collect biological and environmental samples for radiometric analyses. An account of the program from July 1970, to December 1976, has been given in seven previous progress reports from the Laboratory of Radiation Ecology to the Nevada Operations Office of the U.S. Department of Energy. This report is an account of the program for calendar year 1977. Results of analyses for samples collected in September 1977 have… more

Date: July 1, 1978

Creator: Seymour, A.H. & Johnson, A.F.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Technical background information for the environmental and safety report, Volume 5: the 1977 Clinch River sediment survey - data presentation

This study determined the fate and distribution of nuclides in the Clinch River by analyzing selected cores for transuranic radionuclide activity and examined the effect of the altered flow regime in the Clinch River on the distribution of the fission product activity. Cores were collected along the full length of the Clinch River from the WOC outfall (CRM 20.8) to locations in the Tennessee River on either side of the junction of the two rivers. The sampling was concentrated around CRM 20.8 an… more

Date: November 1, 1982

Creator: Oakes, T. W.; Ohnesorge, W. F.; Eldridge, J. S.; Scott, T. G.; Parsons, D. W.; Hubbard, H. M. et al.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Revisions to the hydrogen gas generation computer model

Waste Management Technology has requested SRTC to maintain and extend a previously developed computer model, TRUGAS, which calculates hydrogen gas concentrations within the transuranic (TRU) waste drums. TRUGAS was written by Frank G. Smith using the BASIC language and is described in the report A Computer Model of gas Generation and Transport within TRU Waste Drums (DP- 1754). The computer model has been partially validated by yielding results similar to experimental data collected at SRL and … more

Date: August 31, 1992

Creator: Jerrell, J.W.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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On-Line Measurement of Stack-Gas Particulate Radionuclides

This paper describes an advanced process-monitoring system for the automatic sample collection, analysis, reporting, and alarming of the concentration of long-lived radionuclides in nuclear process stack-gas effluents. This system, the Moving Filter Radioactive Aerosol Monitor, collects particulates in a conditioned sampling chamber, under computer control, for subsequent and separate alpha and beta counting and analysis. The alpha measurement is performed with a solid-state surface-barrier det… more

Date: November 1987

Creator: Stong, F. S.; Troyer, G. L. & Criddle, J. D., Jr.

Item Type: Article

Partner: UNT Libraries Government Documents Department