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3DFEMWATER: A three-dimensional finite element model of water flow through saturated-unsaturated media

Description: The 3DFEMWATER model is designed to treat heterogeneous and anisotropic media consisting of as many geologic formations as desired, consider both distributed and point sources/sinks that are spatially and temporally dependent, accept the prescribed initial conditions or obtain them by simulating a steady state version of the system under consideration, deal with a transient head distributed over the Dirichlet boundary, handle time-dependent fluxes due to pressure gradient varying along the Neum… more
Date: August 1, 1987
Creator: Yeh, G.T.
Item Type: Refine your search to only Report
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Actinide removal from aqueous solution with activated magnetite

Description: An actinide aqueous waste treatment process using activated magnetite has been developed at Rocky Flats. The use and effectiveness of various magnetites in lowering actinide concentrations in aqueous solution are described. Experiments indicate that magnetite particle size and pretreatment (activation of the magnetite surface with hydroxyl ions greatly influence the effective use of magnetite as an actinide adsorbent. With respect to actinide removal, Ba(OH)/sub 2/-activated magnetite was more … more
Date: August 10, 1987
Creator: Kochen, R.L. & Thomas, R.L. (ed.)
Item Type: Refine your search to only Report
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Aging of nuclear station diesel generators: Evaluation of operating and expert experience: Phase 1, Study

Description: Pacific Northwest Laboratory evaluated operational and expert experience pertaining to the aging degradation of diesel generators in nuclear service. The research, sponsored by the US Nuclear Regulatory Commission (NRC), identified and characterized the contribution of aging to emergency diesel generator failures. This report, Volume I, reviews diesel-generator experience to identify the systems and components most subject to aging degradation and isolates the major causes of failure that may a… more
Date: August 1, 1987
Creator: Hoopingarner, K. R.; Vause, J. W.; Dingee, D. A. & Nesbitt, J. F.
Item Type: Refine your search to only Report
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Aging of nuclear station diesel generators: Evaluation of operating and expert experience: Workshop

Description: Pacific Northwest Laboratory (PNL) evaluated operational and expert experience pertaining to the aging degradation of diesel generators in nuclear service. The research, sponsored by the US Nuclear Regulatory Commission (NRC), identified and characterized the contribution of aging to emergency diesel generator failures. This report, Volume II, reports the results of an industry-wide workshop held on May 28 and 29, 1986, to discuss the technical issues associated with aging of nuclear service em… more
Date: August 1, 1987
Creator: Hoopingarner, K. R. & Vause, J. W.
Item Type: Refine your search to only Article
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Analytical cytology applied to detection of induced cytogenetic abnormalities

Description: Radiation-induced biological damage results in formation of a broad spectrum of cytogenetic changes such as translocations, dicentrics, ring chromosomes, and acentric fragments. A battery of analytical cytologic techniques are now emerging that promise to significantly improve the precision and ease with which these radiation induced cytogenetic changes can be quantified. This report summarizes techniques to facilitate analysis of the frequency of occurrence of structural and numerical aberrati… more
Date: August 6, 1987
Creator: Gray, J.W.; Lucas, J.; Straume, T. & Pinkel, D.
Item Type: Refine your search to only Article
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Annular Core for Modular High-Temperature Gas-Cooled Reactor (MHTGR)

Description: The active core of the 350 MW(t) MHTGR is annular in configuration, shaped to provide a large external surface-to-volume ratio for the transport of heat radially to the reactor vessel in case of a loss of coolant flow. For a given fuel temperature limit, the annular core provides approximately 40% greater power output over a typical cylindrical configuration. The reactor core is made up of columns of hexagonal blocks, each 793-mm high and 360-mm wide. The active core is 3.5 m in o.d., 1.65 m in… more
Date: August 1, 1987
Creator: Turner, R. F.; Baxter, A. M.; Stansfield, O. M. & Vollman, R. E.
Item Type: Refine your search to only Article
open access

Application of microwave energy for in-drum solidification of simulated precipitation sludge

Description: The application of microwave energy for in-container solidification of simulated transuranic contaminated precipitation sludges has been tested. Results indicate volume reductions to 83% are achievable by the continuous feeding of pre-dried sludge into a waste container while applying microwave energy. An economic evaluation was completed showing achievable volume and weight reductions to 87% compared with a current immobilization process for wet sludge. 7 refs., 15 figs., 16 tabs.
Date: August 17, 1987
Creator: Petersen, R. D.; Johnson, A. J.; Swanson, S. D. & Thomas, R. L. (ed.)
Item Type: Refine your search to only Report
open access

The Application of Photoconductive Detectors to the Measurement of X-Ray Production in Laser Produced Plasmas

Description: Photoconductive detectors (PCDs) offer an attractive alternative for the measurement of pulsed x-rays from laser produced plasmas. These devices are fast (FWHM approx.100 ps), sensitive and simple to use. We have used InP, GaAs, and Type IIa diamond as PCDs to measure x-rays emission from 100 eV to 100 keV. Specifically, we have used these detectors to measure total radiation yields, corona temperatures, and hot electron generated x-rays from laser produced plasmas. 5 refs., 4 figs.
Date: August 1, 1987
Creator: Kania, D.R.; Bell, P. & Trebes, J.
Item Type: Refine your search to only Article
open access

Argonne National Laboratory 1985 publications

Description: This report is a bibliography of scientific and technical 1985 publications of Argonne National Laboratory. Some are ANL contributions to outside organizations' reports published in 1985. This compilation, prepared by the Technical Information Services Technical Publications Section (TPB), lists all nonrestricted 1985 publications submitted to TPS by Laboratory's Divisions. The report is divided into seven parts: Journal Articles - Listed by first author, ANL Reports - Listed by report number, … more
Date: August 1, 1987
Creator: Kopta, J.A. (ED.) & Hale, M.R. (comp.)
Item Type: Refine your search to only Report
open access

Atlas of Atomic Spectral Lines of Neptunium Emitted by Inductively Coupled Plasma

Description: Optical emission spectra from high-purity Np-237 were generated with a glovebox-enclosed inductively coupled plasma (ICP) source. Spectra covering the 230-700 nm wavelength range are presented along with general commentary on the methodology used in collecting the data. The Ames Laboratory Nuclear Safeguards and Security Program has been charged with the task of developing optical spectroscopic methods to analyze the composition of spent nuclear fuels. Such materials are highly radioactive even… more
Date: August 1, 1987
Creator: DeKalb, E.L. and Edelson, M. C.
Item Type: Refine your search to only Report
open access

Aviation Safety: FAA Near Midair Collision Reports

Description: This report discusses the minimum separation distance in a near midair collision report which the event must meet in order to be classified a "near miss." If a pilot of flight crew member subjectively believes that the near miss occurred, the report of that event is accepted by the Federal Aviation Administration (FAA) and counts as a near miss in the FAA data base regardless of the actual separation distance. While no proximity limits are placed on near midair collision reports, the agency doe… more
Date: August 13, 1987
Creator: Moore, J. Glen
Item Type: Refine your search to only Report
open access

Axial power loss along open field lines

Description: Studies are underway to evaluate the linear mirror geometry as a candidate for a high-fluence, neutron irradiation facility. This steady-state, low-Q design is currently perceived to comprise a two-component plasma driven by neutral beams with mirror confinement of the hot ions and with no electrostatic axial reduction in the warm ion end losses. Warm-ion fueling and end-wall power density will require substantial cold plasma exterior to the mirror cell and neutral gas near the end wall. In thi… more
Date: August 1, 1987
Creator: Correll, D.L.
Item Type: Refine your search to only Article
open access

Beta measurements at Department of Energy facilities

Description: Pacific Northwest Laboratory performed a two-step process to characterize the current beta measurement practices at DOE facilities. PNL issued a survey questionnaire on beta measurement practices to DOE facilities and reported the results. PNL measured beta doses and spectra at seven selected DOE facilities and compared selected measurement techniques in the facility environment. This report documents the results of the radiation field measurements and the comparison of measurement techniques a… more
Date: August 1, 1987
Creator: Rathbun, L. A.; Swinth, K. L. & Haggard, D. L.
Item Type: Refine your search to only Report
open access

Bibliography of the technical literature of the Materials Joining Group, Metals and Ceramics Division, 1951 through June 1987

Description: This document contains a listing of the written scientific information originating in the Materials Joining Group (formerly the Welding and Brazing Group), Metals and Ceramics Division, Oak Ridge National Laboratory during 1951 through June 1987. It is a registry of about 400 documents as nearly as possible in the order in which they were issued.
Date: August 1, 1987
Creator: David, S. A.; Goodwin, G. M. & Gardner, K. (comps.)
Item Type: Refine your search to only Report
open access

Bifunctional chelates of Rh-105 and Au-199 as potential radiotherapeutic agents

Description: Since last year we have (1) Investigated the production of Rh-105 by the Szilard-Chalmers process using Ru(acac){sub 3} targets, (2) Synthesized several new ligands and their rhodium complexes, (3) Done preliminary studies of the radiochemical properties of some of these complexes of Rh-105 at 10{sup -4} -10{sup -3} M concentration, and (4) Done preliminary animal studies on one of the complexes.
Date: August 31, 1987
Creator: Troutner, D.E. & Schlemper, E.O.
Item Type: Refine your search to only Report
open access

Calculated sputtering and atomic displacement cross-sections for applications to medium voltage analytical electron microscopy

Description: The development of medium voltage electron microscopes having high brightness electron sources and ultra-high vacuum environments has been anticipated by the microscopy community now for several years. The advantages of such a configuration have been discussed to great lengths, while the potential disadvantages have for the most part been neglected. The most detrimental of these relative to microcharacterization are the effects of electron sputtering and atomic displacement to the local specime… more
Date: August 1, 1987
Creator: Bradley, C.R. & Zaluzec, N.J.
Item Type: Refine your search to only Article
open access

Catastrophic Health Insurance: Comparison of the Major Provisions of the "Medicare Catastrophic Protection Act of 1987" (H.R. 2470, as passed by the House July 22, 1987) and the "Medicare Catastrophic Loss Prevention Act of 1987" (S. 1127, as passed by the Senate Finance Committee, July 27, 1987)

Description: Catastrophic Health Insurance: Comparison of the Major Provisions of the “Medicare Catastrophic Protection Act of 1987” (H.R. 2470, as passed by t h e House July 22, 1987) and the "MEDICARE CATASTROPHIC LOSS PREVENTION ACT OF 1987" (S. 1127, as reported by the S e n a t e Finance Committee, July 27, 1987)
Date: August 5, 1987
Creator: O'Sullivan, Jennifer
Item Type: Refine your search to only Report
open access

Central Calorimeter Thermal Gradient Module Connection Analysis

Description: Two 20 kW condensing and one 10 kW steady state cooling coils will be used to cool and condense gaseous argon in the Central Calorimeter (CC) Cryostat. Since this cool down (300K to 90K) will inevitably cause shrinkage in the modules contained inside the cryostat, the connections between the modules have to be designed to withstand the increase in forces and moments induced by this contraction. This paper presents finite element analysis (ANSYS{reg_sign}) results to aid in the design or modific… more
Date: August 7, 1987
Creator: Rudland, D. L.
Item Type: Refine your search to only Report
open access

Characteristics of multimuon events from fourth generation quarks at the SSC (superconducting super collider)

Description: Multimuon events can be a distinctive signature for pair production of t-quarks or 4th generation quarks at the SSC. In this paper we address aspects of the multimuon event topology relevant to detector design for the SSC. In particular, we discuss energy measurement, rapidity range, segmentation and the need for hadronic calorimetry in a dedicated muon detector.
Date: August 14, 1987
Creator: Baer, H.
Item Type: Refine your search to only Article
open access

The charge state of iron implanted into sapphire

Description: Several techniques (RBS, TEM, CEMS) have been used to characterize sapphire single crystals implanted with iron at room temperature to fluences of 10/sup 16/ to 10/sup 17/ ions cm/sup -2/. At low fluences the as-implanted iron is found mainly in the ferrous state. As the fluence is increased, Fe/sup 3 +/ and metallic iron clusters became dominant. There is a strong correlation between the probability of finding specific configurations of iron ions within four cation coordination shells and the … more
Date: August 1, 1987
Creator: McHargue, C. J.; Sklad, P. S.; White, C. W.; Farlow, G. C.; Perez, A.; Kornilios, N. et al.
Item Type: Refine your search to only Article
open access

Chemical Technology Division progress report for the period April 1, 1985 to December 31, 1986

Description: This progress report summarizes the research and development efforts conducted in the Chemical Technology Division (Chem Tech) during the period April 1, 1985, through December 31, 1986. The following major areas are covered in the discussion: nuclear and chemical waste management, environmental control technology, basic science and technology, biotechnology research, transuranium-element processing, Nuclear Regulatory Commission programs, radioactive materials production, computer/engineering … more
Date: August 1, 1987
Item Type: Refine your search to only Report
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