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Continued studies of calorimeter performance at the Lawrence Livermore Laboratory

Description: Calibrations of two calorimeters used for tritium and plutonium assays were made. Data from three new standards of about 0.5, 1, and 5 W were added to the results of a previous report and analyzed together. The accuracies of both calorimeters appear to fall within the specified 0.5 percent, although the data now available for the large calorimeter is insufficient to permit a more definite conclusion. An expression of the bias correction for each calorimeter with respect to the sample power cann… more
Date: November 17, 1975
Creator: Steward, S.A. & Tsugawa, R.T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Passive Nmis Measurements to Estimate Shape of Plutonium Assemblies (Slide Presentation)

Description: The purpose of this work is to estimate shape of plutonium assemblies using new signatures acquired by passive NMIS measurements (no external source). Applications include identification of containerized regular shapes of plutonium, identification by shape without template, verification of shape for template initialization, and potential utility for estimating shape of holdup in plutonium processing facilities. To illustrate the technique and test its feasibility, laboratory measurements have b… more
Date: November 25, 1998
Creator: March-Leuba, J. A.; Mattingly, J. K.; Mihalczo, J. T.; Perez, R. B. & Valentine, T. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Active source requirements for assay of sludge drums on the BIR WIT system

Description: The design of the active source for active and passive computed tomography (A&PCT) is critical with respect to accuracy and throughput. The A&PCT active source requirements are highly dependent upon the attenuation properties of the waste matrix within the drum. On of the most highly attenuating waste matrices is sludge. This waste stream will consist of solidified aqueous waste consisting of IDC 001 first stage sludge and IDC 007 wet sludge. Also, the stream consists of solidified organic wast… more
Date: April 27, 1998
Creator: Roberson, G. P. & Camp, D. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Nondestructive assay using active and passive computed tomography

Description: The United States Department of Energy (DOE) has over 600,000 transuranic (TRU) waste drums temporarily stored at nearly 40 sites within the United States. Contents of these drums must be characterized before they are transported for permanent disposal. Traditional gamma-ray methods used to characterize nuclear waste introduce errors that are related to nonuniform measurement responses associated with unknown radioactive source and matrix material distributions. These errors can be reduced by a… more
Date: July 1, 1998
Creator: Roberson, G. P. ,LLNL
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Tank characterization report for single-shell tak 241-C-112. Revision 1

Description: One major function of the Tank Waste Remediation System (IWRS) is to characterize wastes in support of waste management and disposal activities at the Hanford Site. Analytical data from sampling and analysis and other available information about a tank are compiled and maintained in a tank characterization report (CR). This report and its appendixes serve as the CR for single-shell tank 24 1 -C- 1 12. The objectives of this report are: 1) to use characterization data in response to technical is… more
Date: June 11, 1997
Creator: Simpson, B.C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Secondary sulfate minerals from Alum Cave Bluff: Microscopy and microanalysis

Description: Microcrystals of secondary sulfate minerals from Alum Cave Bluff, Great Smoky Mountains National Park, were examined by scanning electron microscopy and identified by X-ray fluorescence (XRF) in the SEM. Among the samples the author discovered three new rare-earth sulfates: coskrenite-(Ce), levinsonite-(Y), and zugshunstite-(Ce). Other minerals illustrated in this report include sulfur, tschermigite, gypsum, epsomite, melanterite, halotrichite, apjohnite, jarosite, slavikite, magnesiocopiapite,… more
Date: July 1, 1997
Creator: Lauf, R.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Particulate Hot Gas Stream Cleanup Technical Issues

Description: The characteristics of entrained particles generated by advanced coal conversion technologies and the harsh flue gas environments from which these particles must be removed challenge current ceramic barrier filtration systems. Measurements have shown that the size distribution, morphology, and chemical composition of particles generated by pressurized fluidized-bed combustion (PFBC) and gasification processes differ significantly from the corresponding characteristics of conventional pulverized… more
Date: July 1, 1997
Creator: Potius, D. & Snyder, T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Gamma ray scanner systems for nondestructive assay of heterogeneous waste barrels

Description: Traditional gamma measurement errors are related to non-uniform measurement responses associated with unknown radioactive source and matrix material distributions. These errors can be reduced by application of tomographic techniques that measure these distributions. LLNL has developed two tomographic-based waste assay systems. They use external radioactive sources and tomography-protocol to map the attenuation within a waste barrel as a function of mono-energetic gamma-ray energy in waste conta… more
Date: August 1, 1997
Creator: Martz, H. E.; Roberson, G. P.; Decman, D. J.; Camp, D. C. & Levai, F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Tank Vapor Characterization Project. Headspace vapor characterization of Hanford Waste Tank AX-102: Results from samples collected on June 27, 1995

Description: This report describes the analytical results of vapor samples taken from the headspace of the waste storage tank 241-AX-102 (Tank AX-102) at the Hanford Site in Washington State. The results described in this report were obtained to characterize the vapors present in the tank headspace and to support safety evaluations and tank-farm operations. The results include air concentrations of selected inorganic and organic analytes and grouped compounds from samples obtained by Westinghouse Hanford Co… more
Date: November 1, 1995
Creator: Clauss, T. W.; Pool, K. H.; Evans, J. C.; McVeety, B. D.; Thomas, B. L.; Olsen, K. B. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

222-S Laboratory Quality Assurance Plan. Revision 1

Description: This Quality Assurance Plan provides,quality assurance (QA) guidance, regulatory QA requirements (e.g., 10 CFR 830.120), and quality control (QC) specifications for analytical service. This document follows the U.S Department of Energy (DOE) issued Hanford Analytical Services Quality Assurance Plan (HASQAP). In addition, this document meets the objectives of the Quality Assurance Program provided in the WHC-CM-4-2, Section 2.1. Quality assurance elements required in the Guidelines and Specifica… more
Date: July 31, 1995
Creator: Meznarich, H.K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Molecular characterization of a maize regulatory gene. Progress report, July 1989--March 1990

Description: This progress report contains information concerning the characterization of the Maize regulatory gene. The findings of this research program have immediate significance. Firstly, it provides support for the notion that R proteins, produced by the regulatory gene, are functionally equivalent. Secondly, the success of these experiments provides a simple transient assay for either natural or constructed R protein mutations. The relative ease of this assay coupled with overnight results are import… more
Date: December 31, 1990
Creator: Wessler, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Nondestructive inspection assessment of eddy current and electrochemical analysis to separate inconel and stainless steel alloys

Description: This report presents a nondestructive inspection assessment of eddy current and electrochemical analysis to separate inconel alloys from stainless steel alloys as well as an evaluation of cleaning techniques to remove a thermal oxide layer on aircraft exhaust components. The results of this assessment are presented in terms of how effective each technique classifies a known exhaust material. Results indicate that either inspection technique can separate inconel and stainless steel alloys. Based… more
Date: February 1, 1998
Creator: Moore, David G. & Sorensen, N. Rob
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Transuranic storage and assay facility interim safety basis

Description: The Transuranic Waste Storage and Assay Facility (TRUSAF) Interim Safety Basis document provides the authorization basis for the interim operation and restriction on interim operations for the TRUSAF. The TRUSAF ISB demonstrates that the TRUSAF can be operated safely, protecting the workers, the public, and the environment. The previous safety analysis document TRUSAF Hazards Identification and Evaluation (WHC 1987) is superseded by this document.
Date: February 12, 1997
Creator: Porten, D. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Particulate Hot Gas Stream Cleanup Technical Issues: Quarterly report, July 1-September 30, 1996

Description: This is the eighth in a series of quarterly reports describing the activities performed under Contract No. DE-AC21-94MC31160. Analyses of Hot Gas Stream Cleanup (HGCU) ashes and descriptions of filter performance address aspects of filter operation that are apparently linked to the characteristics of the collected ash or the performance of the ceramic barrier filter elements. Task 1 is designed to generate a data base of the key characteristics of ashes collected from operating advanced particl… more
Date: December 9, 1996
Creator: Pontius, D.H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Infrared microcalorimetric spectroscopy using uncooled thermal detectors

Description: The authors have investigated a novel infrared microcalorimetric spectroscopy technique that can be used to detect the presence of trace amounts of target molecules. The chemical detection is accomplished by obtaining the infrared photothermal spectra of molecules absorbed on the surface of an uncooled thermal detector. Traditional gravimetric based chemical detectors (surface acoustic waves, quartz crystal microbalances) require highly selective coatings to achieve chemical specificity. In con… more
Date: October 1, 1997
Creator: Datskos, P. G.; Rajic, S.; Datskou, I. & Egert, C. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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International Atomic Energy agency use of facility calorimeters for safeguards purposes

Description: The IAEA is performing nuclear materials safeguards on an inventory of pure and scrap plutonium oxide powder materials held in Vault 3 of the Plutonium Finishing Plant at the Hanford Site,Washington State. The IAEA uses qualitative and quantitative techniques (weighing, sampling, and destructive analyses) to verify the presence and quantity of the nuclear materials under safeguards. In contrast, the plant operator generally uses non-destructive plutonium assay based on gamma spectrometry and ca… more
Date: June 28, 1996
Creator: Mcrae, L.P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Tank characterization report for Double-Shell Tank 241-SY-102

Description: This tank characterization report presents an overview of Double-Shell Tank 241-SY-102 (hereafter, Tank 241-SY-102) and its waste contents. It provides estimated concentrations and inventories for the waste components based on the latest sampling and analysis activities and background tank information. This report describes the results of three sampling events. The first core sample was taken in October 1988. The tank supernate and sludge were next core sampled in February and March of 1990 (Ti… more
Date: June 9, 1995
Creator: DiCenso, A.T.; Amato, L. C. & Winters, W. I.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Solid-phase characterization in flammable-gas-tank sludges by electron microscopy

Description: The crystallinity, morphology, chemical composition, and crystalline phases of several Tank 241-SY-101 (hereinafter referred to as SY-101) and Tank 241-SY-103 (hereinafter referred to as SY-103) solid samples were studied by transmission electron microscopy (TEM), electron energy dispersive spectroscopy (EDS), and electron diffraction. The main focus is on the identification of aluminum hydroxide thought to be present in these tank samples. Aluminum hydroxide was found in SY-103, but not in SY-… more
Date: September 1, 1995
Creator: Liu, J.; Pederson, L. R. & Qang, L. Q.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Determination of the purity of polonium by means of the vacuum balance (Ad Interim Report)

Description: The assay technique is discussed in detail. The results of three purity determinations are: 94.92 per cent, 100.50 per cent, and 106.9 per cent. The errors present in each determination are stated. The inherent dangers in the present procedure are pointed out, and an improved method is outlined.
Date: March 8, 1949
Creator: Haring, M. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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W-026, acceptance test report imaging passive/active neutron(IPAN) (submittal {number_sign}54.3 - C3)

Description: In the Spring of 1996, Site Acceptance Tests were performed for the 2 Imaging Passive/Active Neutron (IPAN) assay systems installed in the WRAP I Facility. This report includes the test documentation and the completed test checklists, with comments and resolutions. All testing was completed, with comments resolved by August 1996.
Date: February 21, 1997
Creator: Watson, T.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Measurements of radionuclides in Pond C with an underwater HPGe detector

Description: This study on Pond C is part of a broader effort to appraise Savannah River Site (SRS) waterways impacted by the Par Pond Dam remediation program that commenced 1991. In addition, the results were sought to provide a more complete appraisal of the status of historical radioactive releases that remain in the Lower Three Runs system. Gamma emitting radionuclide concentrations in Pond C sediment were measured with an underwater HPGe detector. The predominant radionuclide was Cs-137 and the only ot… more
Date: August 1, 1995
Creator: Winn, Willard G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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GAMQUEST, A computer program to identify gamma rays

Description: This paper describes the application of the computer program GAMQUEST to the study of gamma-ray spectra. The program is especially suited to the analysis of samples produced by neutron activation, and of environmental samples containing radioactive pollutants. GAMQUEST searches a large database (with data for over 60,000 gamma rays) to identify the various spectral lines from samples. The program runs on the VAX/6610 computer cluster of the Lawrence Berkeley Laboratory, and can be accessed from… more
Date: May 1, 1994
Creator: Brown, E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Geochemical and stable isotope variations in baseflow from an urbanized watershed: White Rock Creek, Dallas, Texas

Description: Public concerns about surface water quality and its impact on health issues have put a premium on the ability to predict surface and groundwater quality in urban areas. The movement of toxins and nutrients in urban areas is largely controlled by interactions with soil and aquifer minerals along hydrologic pathways. Despite progress in theoretical modeling of the effects of these interactions on water chemistry, it is presently impossible to predict overall trends in urban water quality. Determi… more
Date: March 1, 1995
Creator: Hercod, Debra J.; Brady, Patrick V. & Gregory, Robert T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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