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Spectrometric Techniques for Measuring Environmental Gamma Radiation

Description: From Introduction: "We discuss in detail the equipment, calibration procedures, and techniques used to analyze the spectra, present evidence to substantiate the validity of the dose rate estimates, and examine several problems associated with field measurements, in particular the effects of radon migration from the soil, soil moisture, and fallout."
Date: October 1964
Creator: Beck, Harold L.; Condon, William J. & Lowder, Wayne M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Las Vegas Area (ARMS-II)

Description: From Abstract: "An Aerial Radiological Measuring Survey (ARMS) of the Las Vegas area was made for the Civil Effects Test Operations, Division of Biology and Medicine, U.S. Atomic Energy Commission, by Edgerton, Germeshausen & Grier, Inc., between May 21 and June 23, 1961. The survey was part of a nationwide program to measure present environmental levels of gamma radiation. Approximately 6000 traverse miles were flown, at an attitude of 500 ft above the ground, in a 100-mile square centered nea… more
Date: October 1961
Creator: Guillou, R. B.; Hand, J. E. & Borella, H. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Parr Area (ARMS-II)

Description: From Purpose of Survey: "The ARMS-II Parr area survey was one of many that have been flown for the CETO since the nationwide ARMS program was started (1958). Figure 2 shows the location of the areas survey as of Apr. 1, 1964. The purpose of the program is to measure the present environmental levels of gamma radiation in areas around nuclear facilities and planned nuclear activities."
Date: April 1964
Creator: Guillou, R. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Norfolk-Peninsula Area (ARMS-II)

Description: From Introduction: "The ARMS-II Norfolk - Peninsula area survey was one many that have been flown for the CETO since the nationwide ARMS program was started (1958). Figure 2 shows the location of the areas that have been completed to date. The purpose of the program is to measure the present environmental levels of gamma radiation in areas around nuclear facilities and planned nuclear activities."
Date: December 6, 1961
Creator: Guillou, R. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Preliminary Investigation of Effects of Gamma Radiation on Age-Hardening Rate of an Aluminum-Copper Alloy

Description: "A preliminary investigation was made to determine the effects of gamma radiation on the age-hardening rate of an aluminum-copper alloy at temperatures of 32 and 70 degrees Fahrenheit. The gamma radiation from a 100-milligram radium source appeared to have no significant effect on the age-hardening rate of the alloy. A metallographic examination of the test specimens showed no microstructural changes that could be attributed to gamma radiation" (p. 1).
Date: June 20, 1947
Creator: Kittel, J. Howard
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Analysis of Hydroperoxides in Solid Polyethylene by MAS (13)C NMR and EPR

Description: {sup 13}C-enriched polyethylene was subjected to {gamma}-irradiation in the presence of air at 25 and 80 C for total doses ranging from 71 to 355 kGy. Significant quantities of hydroperoxides were detected in the 25 C irradiated sample by {sup 13}C magic angle spinning NMR spectroscopy. This method of detection was performed on the solid polymer and required no chemical derivatization or addition of solvent. The chemical stability and subsequent products of the hydroperoxide species were studie… more
Date: November 19, 1999
Creator: Assink, Roger A.; Celina, Mathias C.; Dunbar, Timothy D.; Alam, Todd M.; Clough, Roger Lee & Gillen, Kenneth T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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NNWSI [Nevada Nuclear Waste Storage Investigation] waste form testing at Argonne National Laboratory; Semiannual report, July--December 1987

Description: Tests are ongoing at Argonne National Laboratory to examine the reaction of glass with water under conditions that may exist in the proposed repository at Yucca Mountain, Nevada. Examination of glass reaction using the Unsaturated Test method as applied to simulated defense glass (SRL 165 black frit based) and simulated West Valley glass (ATM-10) is ongoing. The tests on SRL 165 glass have been ongoing for 104 weeks with nonstoichiometric release of Li, Na, B, and actinide elements being observ… more
Date: July 1, 1988
Creator: Bates, J.K.; Gerding, T.J.; Ebert, W.L.; Mazer, J.J. & Biwer, B.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Corrosion models for predictions of performance of high-level radioactive-waste containers

Description: The present plan for disposal of high-level radioactive waste in the US is to seal it in containers before emplacement in a geologic repository. A proposed site at Yucca Mountain, Nevada, is being evaluated for its suitability as a geologic repository. The containers will probably be made of either an austenitic or a copper-based alloy. Models of alloy degradation are being used to predict the long-term performance of the containers under repository conditions. The models are of uniform oxidati… more
Date: November 1, 1991
Creator: Farmer, J. C.; McCright, R. D. & Gdowski, G. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The University of Rochester Atomic Energy Project quarterly report, April 1, 1950--June 30, 1950

Description: This quarterly progress report gives an overview of the University of Rochester Atomic Energy Project for April 1, 1950 thru June 30, 1950. Sections included are entitled (1) Biological Effects of External Radiation (X-rays and gamma rays), (2) Biological Effects of External Radiation (Infra-red and ultraviolet), (3) Biological effects of radioactive materials (polonium, radon, thoron, and miscellaneous project materials), (4) Uranium, (5) Beryllium, (7) thorium, (8) fluoride, (9) zirconium, (1… more
Date: December 31, 1950
Creator: Blair, H.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Multipurpose scintillation camera

Description: The scintillation camera is a nonscanning instrument for displaying the distribution of radioactive isotopes. It can be used, for example, to show abnormalities in the thyroid gland with I-131, the size, shape and location of kidneys with Hg-203 Neohydrin or to locate brain tumors either with Hg-203 Neohydrin or with the new positron emitting agent, Ga-68 EDTA. For many applications, the scintillation camera has higher sensitivity than conventional isotope scanners, and will produce pictures in… more
Date: July 1, 1963
Creator: Anger, H.O.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Progress in evaluating the corrosion of candidate HLW container metals in irradiated air-steam mixtures

Description: The Yucca Mountain Site Characterization Project is evaluating Yucca Mountain in Nye County, Nevada, as a site for a potential high-level nuclear waste repository. Lawrence Livermore National Laboratory is concerned with the development and performance modeling of waste packages for the potential repository. Argonne National Laboratory has performed experimental studies in support of the waste package effort. This effort is currently guided by the Waste Package Plan, which calls for a systems e… more
Date: October 1, 1991
Creator: Reed, D.T. & Van Konynenburg, R.A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Shielding analysis for the 300 area light water reactor spent nuclear fuel within a modified multi-canister overpack canister in a modified multi-canister overpack cask

Description: Spent light water reactor fuel is to be moved out of the 324 Building. It is anticipated that intact fuel assemblies will be loaded in a modified Multi-Canister Overpack Canister, which in turn will be placed in an Overpack Transportation Cask. An estimate of gamma ray dose rates from a transportation cask is desired.
Date: April 11, 1997
Creator: Gedeon, S.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Corrosion behavior of copper-base materials in a gamma-irradiated environment; Final report

Description: Specimens of three copper-base materials were corrosion tested with gamma radiation exposure dose rates in the range of 1.9 {times} 10{sup 3} R/h to 4.9 {times} 10{sup 5} R/h. Materials used were pure copper, 7% aluminum bronze and 30% copper-nickel. Exposures were performed in moist air at 95{degree}C and 150{degree}C and liquid Well J-13 water at 95{degree}C, for periods of up to 16 months. Specimens were monitored for uniform weight loss, stress-induced corrosion and crevice corrosion. Speci… more
Date: September 1, 1990
Creator: Yunker, W.H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Non-destructive assay of {sup 242}Pu by resonance neutron capture

Description: For the accurate assay of plutonium by neutron correlation measurements, especially for material derived from high-burnup reactor fuel, the content of {sup 242}Pu in a sample must be determined. Since {sup 242}Pu has a long half-life (387,000 yr) and decays to {sup 238}U by alpha particle emission with the accompanying emission of only weak, low-energy gamma rays, gamma-ray spectrometry methods which are ordinarily employed to determine the isotopic composition of a plutonium sample are not fea… more
Date: August 1, 1995
Creator: Kane, W. R.; Lu, Ming-Shih; Aronson, A.; Forman, L. & Vanier, P. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Tests of perturbative QCD at CDF

Description: The inclusive jet cross-section measured by CDF is in excellent agreement with NLO QCD below E{sub T} of 200 GeV. Above 200 GeV the measured cross-section begins to deviate from the QCD predictions with an excess of 20-50% in the 260-360 GeV range. A similar excess is observed in the two-jet mass distribution and the {Sigma} E{sub T} cross-section. The prompt photon cross-section from the CDF is in qualatative agreement with next-to-leading order QCD but has a steeper slope at low p{sub T}. Rec… more
Date: October 1, 1995
Creator: Buckley-Geer, E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Extensions to the integral line-beam method for gamma-ray skyshine analyses

Description: A computationally simple method for estimating gamma-ray skyshine dose rates has been developed on the basis of the line-beam response function. Both Monte Carlo and pointkernel calculations that account for both annihilation and bremsstrahlung were used in the generation of line beam response functions (LBRF) for gamma-ray energies between 10 and 100 MeV. The LBRF is approximated by a three-parameter formula. By combining results with those obtained in an earlier study for gamma energies below… more
Date: August 1, 1995
Creator: Shultis, J. K. & Faw, R. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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An aerial radiological survey of the Wright-Patterson Air Force Base and surrounding area, Fairborn, Ohio

Description: An aerial radiological survey was conducted over areas of Wright-Patterson Air Force Base (WPAFB) and the immediate surrounding area, during the period July 7 through 20, 1994. The survey was conducted to measure and map the gamma radiation in the area. This mission was the first aerial radiation survey conducted at WPAFB. In the surveyed area, five small localized sources of gamma radiation were detected which were atypical of naturally-occurring radionuclides. On WPAFB property, these sources… more
Date: August 1995
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Progress in assessing the effect of ionizing radiation on the anticipated waste package environment at the Yucca Mountain potential repository site

Description: Progress in establishing the effect of ionizing radiation on the expected air/water vapor waste package environment is summarized. This work was performed at Argonne National Laboratory (ANL) in support of the Yucca Mountain Site Characterization Project. The radiolytic issues that have been identified are presented. Long-term gamma experiments with gas compositions ranging from dry air to high-humidity air were completed. The predominant nitrogen fixation products in all air-like systems studi… more
Date: December 31, 1991
Creator: Reed, D.T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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McSKY: A hybrid Monte-Carlo lime-beam code for shielded gamma skyshine calculations

Description: McSKY evaluates skyshine dose from an isotropic, monoenergetic, point photon source collimated into either a vertical cone or a vertical structure with an N-sided polygon cross section. The code assumes an overhead shield of two materials, through the user can specify zero shield thickness for an unshielded calculation. The code uses a Monte-Carlo algorithm to evaluate transport through source shields and the integral line source to describe photon transport through the atmosphere. The source e… more
Date: July 1, 1994
Creator: Shultis, J. K.; Faw, R. E.; Stedry, M. H. & Hall, W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Biomedical Research Group, Health Division annual report 1954

Description: This report covers the activities of the Biomedical Research Group (H-4) of the Health Division during the period January 1 through December 31, 1954. Organizationally, Group H-4 is divided into five sections, namely, Biochemistry, Radiobiology, Radiopathology, Biophysics, and Organic Chemistry. The activities of the Group are summarized under the headings of the various sections. The general nature of each section`s program, publications, documents and reports originating from its members, and… more
Date: December 1955
Creator: Langham, W. H. & Storer, J. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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PC/FRAM: New capabilities for the gamma-ray spectrometry measurement of plutonium isotopic composition

Description: We describe the new capability of and.present measurement results from the PC/FRAM plutonium isotopic analysis code. This new code allows data acquisition from a single coaxial germanium detector and analysis over an energy range from 120 keV to above I MeV. For the first time we demonstrate a complete isotopic analysis using only gamma rays greater than 200 keV in energy. This new capability allows the measurement of the plutonium isotopic composition of items inside shielded or heavy-walled c… more
Date: October 1, 1995
Creator: Sampson, T. E.; Kelley, T. A.; Cremers, T. L.; Konkel, T. R. & Friar, R. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Results of the gamma-neutron mapper performance test on 55-gallon drums at the RWMC

Description: The primary purpose of the gamma-neutron mapper (G@) is to provide accurate and quantitative spatial information of the gamma-ray and neutron radiation fields as a function of position about the excavation of a radioactive waste site. The GNM is designed to operate remotely and can be delivered to any point on an excavation by the robotic gantry crane developed by the dig-face project at the Idaho National Engineering Laboratory (INEL). It can also be easily adapted to other delivery systems. T… more
Date: July 1, 1995
Creator: Gehrke, R. J.; Lawrence, R. S.; Roybal, L. G.; Svoboda, J. M.; Harker, D. J.; Thompson, D. N. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Organic tanks safety program FY95 waste aging studies

Description: This report gives the second year`s findings of a study of how thermal and radiological processes may change the composition of organic compounds in the underground tanks at Hanford. Efforts were focused on the global reaction kinetics in a simulated waste exposed to {gamma} rays and the reactions of organic radicals with nitrite ion. The gas production is predominantly radiolytic. Decarboxylation of carboxylates is probably an aging pathway. TBP was totaly consumed in almost every run. Radiati… more
Date: September 1, 1995
Creator: Camaioni, D. M.; Samuels, W. D.; Clauss, S. A.; Lenihan, B. D.; Wahl, K. L.; Campbell, J. A. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Corrosion considerations of high-nickel alloys and titanium alloys for high-level radioactive waste disposal containers

Description: Corrosion resistant materials are being considered for the metallic barrier of the Yucca Mountain Project`s high-level radioactive waste disposal containers. High nickel alloys and titanium alloys have good corrosion resistance properties and are considered good candidates for the metallic barrier. The localized corrosion phenomena, pitting and crevice corrosion, are considered as potentially limiting for the barrier lifetime. An understanding of the mechanisms of localized corrosion of how var… more
Date: July 1, 1991
Creator: Gdowski, G. E. & McCright, R. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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