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Radionuclide migration as a function of mineralogy

Description: The migration of radionuclides is studied as a function of mineralogy utilizing batch sorption and column experiments. The transport behavior of alkaline, alkaline-earth, and transition metals, and actinide species is studied in pure mineral separates. The solid phases utilized for these investigations are silicates, alumino-silicates, carbonates, and metal oxides and oxyhydroxides. The results of this effort are utilized to aid in the elucidation of the dominant chemical mechanisms of radionuc… more
Date: February 1, 1991
Creator: Triay, I. R.; Mitchell, A. J. & Ott, M. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Characterization of spent fuel approved testing material--ATM-104

Description: The characterization data obtained to date are described for Approved Testing Material 104 (ATM-104), which is spent fuel from Assembly DO47 of the Calvert Cliffs Nuclear Power Plant (Unit 1), a pressurized-water reactor. This report is one in a series being prepared by the Materials Characterization Center at Pacific Northwest Laboratory (PNL) on spent fuel ATMs. The ATMs are receiving extensive examinations to provide a source of well-characterized spent fuel for testing in the US Department … more
Date: December 1, 1991
Creator: Guenther, R. J.; Blahnik, D. E.; Jenquin, U. P.; Mendel, J. E.; Thomas, L. E. & Thornhill, C. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Characterization of spent fuel approved testing material---ATM-105

Description: The characterization data obtained to data are described for Approved Testing Material 105 (ATM-105), which is spent fuel from Bundles CZ346 and CZ348 of the Cooper Nuclear Power Plant, a boiling-water reactor. This report is one in a series being prepared by the Materials Characterization Center at Pacific Northwest Laboratory (PNL) on spent fuel ATMs. The ATMs are receiving extensive examinations to provide a source of well-characterized spent fuel for testing in the US Department of Energy O… more
Date: December 1, 1991
Creator: Guenther, R. J.; Blahnik, D. E.; Campbell, T. K.; Jenquin, U. P.; Mendel, J. E.; Thomas, L. E. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Studies of fission product movement in tuffaceous media

Description: For approximately 25 years the United States has conducted underground nuclear tests at a site in the state of Nevada. These tests have left a variety of fission products at depths of 100 to 1000 meters below the land surface. The geologic media here consist primarily of tuffs and rhyolites. More than 150 tests were conducted at or below the water table. We are studying locations of past tests to determine whether residual fission products move through the underground environment and, if so, by… more
Date: September 1, 1991
Creator: Thompson, J. L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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The use of air as a natural tracer infractured hydrothermal systems, Los Azufres, Mexico, case study

Description: Injection of atmospheric air mixed with cold water has been occurring since 1982 at the Los Azufres geothermal field. Several chemical and thermodynamical evidences show that air injection into this fractured hydrothermal system could be considered as a long term natural tracer test. Nitrogen and Argon separated from the air mixture migrate, under the action of the induced injection-extraction gradient, from reinjection sectors to production zones following preferential paths closely related to… more
Date: January 1, 1991
Creator: Arriaga, Mario César Suárez; Puente, Héctor Gutiérrez & Ochoa, Josefina Morena
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Annual hydrologic data summary for the White Oak Creek Watershed: Water Year 1990 (October 1989--September 1990)

Description: This report summarizes, for the Water Year 1990 (October 1989-- September 1990), the dynamic hydrologic data collected on the Whiteoak Creek (WOC) Watershed's surface and subsurface flow systems. These systems affect the quality or quantity of surface water and groundwater. The collection of hydrologic data is one component of numerous, ongoing Oak Ridge National Laboratory (ORNL) environmental studies and monitoring programs and is intended to 1. characterize the quantity and quality of water … more
Date: September 1, 1991
Creator: Borders, D. M.; Gregory, S. M.; Clapp, R. B.; Frederick, B. J.; Moore, G. K.; Watts, J. A. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Calculated thickness of tungsten alloy required for specified attenuation of gamma radiation from sup 137 CS

Description: The traditional method of evaluating and calibrating health physics instruments is to use a calibrator that consists of a single high-activity gamma radiation source with different attenuators to select the radiation level desired for tesing. To have accurate radiation intensities inside the calibrator cavity, the attenuators must be designed from precise absorption calculations. This paper reports calculations made to determine the thickness of tungsten alloy metal required for specific attenu… more
Date: January 1, 1991
Creator: Chiles, M. M.; Allin, G. W. & Pace, J. V. III
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Ferrocyanide-containing waste tanks: Ferrocyanide chemistry and reactivity

Description: The complexing constant for hexacyano-iron complexes, both Fe(2) and Fe(3), are exceptionally large. The derived transition metal salts or double salts containing alkali metal ions are only slightly soluble. The various nickel compounds examined in this study, i.e., those predicted to have been formed in the Hanford waste scavenging program, are typical examples. In spite of their relative stability towards most reagents under ambient conditions, they are all thermodynamically unstable towards … more
Date: September 1, 1991
Creator: Scheele, R. D.; Burger, L. L.; Tingey, J. M.; Bryan, S. A.; Borsheim, G. L.; Simpson, B. C. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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BNL volume H sup minus source

Description: The volume H{sup minus} ion source under development at Brookhaven is unique in that it has a toroidal plasma region, which feeds ions into the central extraction region through a conically shaped filter field. In pulsed operation, it produced 25 mA of H{sup minus} in a 1 cm{sup 2} aperture, with an electron-to-H{sup minus} ratio of {approx} 3. At 19 mA, a normalized, 90% emittance of 0.44 {pi} mm-mrad has been measured. Up to 50 mA has been extracted through a 1.87 cm{sup 2} aperture. Although… more
Date: January 1, 1991
Creator: Prelec, K. & Alessi, J.G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Tank 241-A-105 leak assessment

Description: Tank 241-A-105 is one of 149 single shell tanks constructed at Hanford to contain and store highly radioactive wastes originating from the processing of spent nuclear reactor fuel. Radiation detection and temperature monitoring devices installed beneath the tank indicate that several episodes of leakage of waste from the tank have occurred. The aim of this study was to evaluate the previous estimates and reanalyze the data to provide a more accurate estimate of leakage from the tank. The princi… more
Date: June 1, 1991
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Soviet precision timekeeping research and technology

Description: This report is the result of a study of Soviet progress in precision timekeeping research and timekeeping capability during the last two decades. The study was conducted by a panel of seven US scientists who have expertise in timekeeping, frequency control, time dissemination, and the direct applications of these disciplines to scientific investigation. The following topics are addressed in this report: generation of time by atomic clocks at the present level of their technology, new and emergi… more
Date: August 1, 1991
Creator: Vessot, R. F. C.; Allan, D. W.; Crampton, S. J. B.; Cutler, L. S.; Kern, R. H.; McCoubrey, A. O. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A novel phase transition in alloys

Description: The intermediate-phase of the intermetallic alloy CsPb is shown to be a plastic crystal characterized by jump reorientations of Cs{sub 4}Pb{sub 4} structural units. The wave vector variation of elastic and quasielastic intensities is well reproduced by a simple model if independent structural units jumping between the four orientations observed in the crystal at room temperature. This represents the first observation of a plastic crystal phase in a metal alloy. 17 refs., 6 figs.
Date: September 1, 1991
Creator: Saboungi, M.L. & Price, D.L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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MBE-4 experiments with bright Cesium+ beams

Description: Since 1985 the Heavy Ion Fusion Accelerator Research program at the Lawrence Berkeley Laboratory has been studying current amplification and emittance variations in MBE-4, a four-cesium-beam ion induction linac. This experiment models much of the accelerator physics of the electrostatically focused section of a fusion driver. Four space-charged Cs{sup +} beams, initially about one meter in length at currents of 5--10 mA, are focused by electrostatic quadrupoles and accelerated in parallel from … more
Date: August 1, 1991
Creator: Fessenden, T.J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Facility effluent monitoring plan determinations for the 400 Area facilities

Description: This Facility Effluent Monitoring Plan determination resulted from an evaluation conducted for the Westinghouse Hanford Company 400 Area facilities on the Hanford Site. The Facility Effluent Monitoring Plan determinations have been prepared in accordance with A Guide for Preparing Hanford Site Facility Effluent Monitoring Plans. Two major Westinghouse Hanford Company facilities in the 400 Area were evaluated: the Fast Flux Test Facility and the Fuels Manufacturing and examination Facility. The … more
Date: September 1, 1991
Creator: Nickels, J.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Fission product transport and behavior during two postulated loss of flow transients in the air

Description: This document discusses fission product behavior during two postulated loss-of-flow accidents (leading to high- and low-pressure core degradation, respectively) in the Advanced Test Reactor (ATR). These transients are designated ATR Transient LCPI5 (high-pressure) and LPP9 (low-pressure). Normally, transients of this nature would be easily mitigated using existing safety systems and procedures. In these analyses, failure of these safety systems was assumed so that core degradation and fission p… more
Date: January 1, 1991
Creator: Adams, J.P. & Carboneau, M.L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Patterns of sediment accumulation in Watts Bar Reservoir based on sup 137 Cesium

Description: The US Department of Energy has recently undertaken an environmental restoration program designed to achieve remediation of hazardous materials released from the Oak Ridge Reservation (ORR). The distribution of {sup 137}Cs was investigated in sediments from Watts Barr Reservoir and the Clinch River as a possible marker for other contaminants released from the ORR. We have performed additional analyses on the data gathered for this study to investigate possible relationships between {sup 137}Cs … more
Date: January 1, 1991
Creator: Brandt, Craig C.; Rose, Kenneth A.; Cook, Robert B.; Dearstone, Krista C.; Brenkert, Antoinette L. & Olsen, Curtis R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Whole-body counting in the Marshall Islands

Description: In 1978 the Marshall Islands Radiological Safety Program was organized to perform radiation measurements and assess radiation doses for the people of the Bikini, Enewetak, Rongelap and Utirik Atolls. One of the major field components of this program is whole- body counting (WBC). WBC is used to monitor the quantity of gamma- emitting radionuclides present in individuals. A primary objective of the program was to establish {sup 137}Cesium body contents among the Enewetak, Rongelap and Utirik pop… more
Date: January 1, 1991
Creator: Sun, L. C.; Clinton, J.; Kaplan, E. & Meinhold, C. B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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A comparison of spent fuel assembly control instruments: The Cadarache PYTHON and the Los Alamos Fork

Description: Devices to monitor spent fuel assemblies while stored under water with nondestructive assay methods, have been developed in France and in the United States. Both devices are designed to verify operator's declared values of exposures and cooling-time but the applications and thus the designs of the systems differ. A study, whose results are presented in this paper, has been conducted to compare the features and the performances of the two instruments. 4 refs., 9 figs.
Date: January 1, 1991
Creator: Bignan, G.; Capsie, J.; Romeyer-Dherbey, J. (CEA Centre d'Etudes Nucleaires de Cadarache, 13 - Saint-Paul-lez-Durance (France). Direction des Reacteurs Nucleaires) & Rinard, P. (Los Alamos National Lab., NM (United States))
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Dose assessment for a sup 137 Cs contamination incident

Description: Radiological surveys along the CSX Transportation Group railroad tracks in Oak Ridge, Tennessee, have found areas of {sup 137}Cs contamination which probably resulted from low-level waste operations during the 1960s. This paper summarizes an assessment of potential radiation doses to the public, including railroad workers, from exposure to the {sup 137}Cs. The significance of the contamination and needs for remediation are evaluated by comparing the dose estimates and survey data with proposed … more
Date: January 1, 1991
Creator: Kocher, David C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Technical basis for internal dosimetry at Hanford

Description: The Hanford Internal Dosimetry Program, administered by Pacific Northwest Laboratory for the US Department of Energy, provides routine bioassay monitoring for employees who are potentially exposed to radionuclides in the workplace. This report presents the technical basis for routine bioassay monitoring and the assessment of internal dose at Hanford. The radionuclides of concern include tritium, corrosion products ({sup 58}Co, {sup 60}Co, {sup 54}Mn, and {sup 59}Fe), strontium, cesium, iodine, … more
Date: July 1, 1991
Creator: Sula, M.J.; Carbaugh, E.H. & Bihl, D.E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The reactivity of cesium nickel ferrocyanide towards nitrate and nitrite salts

Description: Beginning in late 1988, the Pacific Northwest Laboratory (PNL) began an experimental program at the request of Westinghouse Hanford Company (WHC) to investigate the effects of temperature on the oxidation reaction between synthetic nickel cesium ferrocyanide (FeCN) and nitrates and nitrites representative of materials present in some of the Hanford single-shell tanks (SSTs). After completing a preliminary series of experiments in 1988, the program was expanded to include five tasks to evaluate … more
Date: September 1, 1991
Creator: Burger, L.L. & Scheele, R.D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Identification of artificial gamma-emitting nuclides using a scintillator-based gamma-ray spectral logging system

Description: The standard spectral gamma ray logging system used at the Nevada Test Site (NTS) contains a large sodium iodide detector which provides high efficiency but low energy resolution. To enhance the capabilities of this system for identifying artificial gamma-emitting nuclides, I developed and implemented a simple procedure for extracting artificial components from low-resolution gamma-ray spectra. This procedures uses three bias spectra, developed by a consultant using numerical modeling, represen… more
Date: January 1, 1991
Creator: Conaway, J.G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Iodine chemical forms in LWR severe accidents

Description: Calculated data from seven severe accident sequences in light water reactor plants were used to assess the chemical forms of iodine in containment. In most of the calculations for the seven sequences, iodine entering containment from the reactor coolant system was almost entirely in the form of CsI with very small contributions of I or HI. The largest fraction of iodine in forms other than CsI was a total of 3.2% as I plus HI. Within the containment, the CsI will deposit onto walls and other su… more
Date: January 1, 1991
Creator: Weber, C.F.; Beahm, E.C. & Kress, T.S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Technical memo on new results on CsI photocathodes: Enhancement and aging

Description: It appears that there are 4 processes involved in the enhancement and aging of a CsI or CsI-TMAE photocathode: water absorption, charging up of the photocathode, a self annealing aging, and a permanent aging. The evidence for these processes are presented. 9 refs., 6 figs.
Date: September 1, 1991
Creator: Anderson, D.F.; Kwan, S. (Fermi National Accelerator Lab., Batavia, IL (United States)); Hoeneisen, B. (Universidad San Francisco de Quito (Ecuador)) & Peskov, V. (European Organization for Nuclear Research, Geneva (Switzerland). World Lab.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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