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Selected transuranic waste immobilization systems

Description: Waste contaminated with transuranic (TRU) elements may require treatment prior to final disposal. Pacific Northwest Laboratory has conducted research and development to identify and characterize the wastes; to evaluate the possible immobilization requirements and treatment alternatives; and to develop immobilization process technologies. This paper describes systems that are anticipated to be capable of immobilizing a selected TRU waste stream consisting of a blend of process sludge and inciner… more
Date: December 1, 1981
Creator: Timmerman, C.L.; Treat, R.L. & Ross, W.A.
Partner: UNT Libraries Government Documents Department
open access

Cyclic fatigue-crack propagation in ceramics: Long and small crack behavior

Description: Stress/life (S/N) and cyclic fatigue-crack growth properties are studied in a Mg-PSZ, with particular reference to the role of crack size. S/N data from unnotched specimens show markedly lower lives under tension-compression compared to tension-tension loading; fatigue limits'' (at 10{sup 8} cycles) for the former case approach 50% of the tensile strength. Under tension-tension loading, cyclic crack-growth rates of long'' (> 3 mm) cracks are found to be power-law dependent on the stress-intensi… more
Date: December 1, 1989
Creator: Steffen, A. A.; Dauskardt, R. H. & Ritchie, R. O.
Partner: UNT Libraries Government Documents Department
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Waste management strategy for nuclear fusion power systems from a regulatory perspective

Description: A waste management strategy for future nuclear fusion power systems is developed using existing regulatory methodology. The first step is the development of a reference fuel cycle. Next, the waste streams from such a facility are identified. Then a waste management system is defined to safely handle and dispose of these wastes. The future regulator must identify the decisions necessary to establish waste management performance criteria. The data base and methodologies necessary to make these de… more
Date: December 6, 1977
Creator: Heckman, R.A.
Partner: UNT Libraries Government Documents Department
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Constructibility issues associated with a nuclear waste repository in basalt

Description: This report contains the text and slide reproductions of a speech on nuclear waste disposal in basalt. The presentation addresses the layout of repository access shafts and subsurface facilities resulting from the conceptual design of a nuclear repository in basalt. The constructibility issues that must be resolved prior to construction are described. (DMC)
Date: December 4, 1981
Creator: Turner, D.A.
Partner: UNT Libraries Government Documents Department
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CDF (Collider Detector at Fermilab) detector simulation

Description: The Collider Detector at Fermilab (CDF) uses several different simulation programs, each tuned for specific applications. The programs rely heavily on the extensive test beam data that CDF has accumulated. Sophisticated shower parameterizations are used, yielding enormous gains in speed over full cascade programs. 3 refs., 5 figs.
Date: December 1, 1987
Creator: Freeman, J.
Partner: UNT Libraries Government Documents Department
open access

Electron positron factories

Description: In this paper, we will first indicate the key issues in designing a B-factory and a {phi}-factory, and illustrate the approaches that are being followed to address them. In general, reaching the B-factory parameter regime offers the most challenges, so we will emphasize it here. Then we will consider an extrapolation of our present understanding of collider performance and assess the maximum luminosity that could be anticipated. To reach extremely high luminosity, it may be necessary to conside… more
Date: December 1, 1990
Creator: Zisman, M. S.; Chattopadhyay, S.; Garren, A. A.; Lambertson, G. (Lawrence Berkeley Lab., CA (United States)); Bloom, E.; Corbett, W. J. et al.
Partner: UNT Libraries Government Documents Department
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Compatibility between vandium-base alloys and flowing lithium: Partitioning of hydrogen at elevated temperatures

Description: A major concern in fusion reactor design is possible hydrogen-isotope-induced embrittlement of structural alloys in the neutron environment expected in these reactors. Hydrogen fractionation occurs between lithium and various refractory metals according to a temperature-dependent distribution coefficient, K{sub H}, that is defined as the ration of the hydrogen concentration in the metallic specimen to that in the liquid lithium. In the present work, K{sub H} was determined for pure vanadium and… more
Date: December 1, 1989
Creator: Hull, A. B.; Chopra, O. K.; Loomis, B. & Smith, D.
Partner: UNT Libraries Government Documents Department
open access

FFTF auxiliary system testing program: results and overview (posters)

Description: The most important aspects of the Auxiliary System Testing Program to the overall startup of FFTF were in the areas of integrated testing of inerted cells, integrated leak rate testing of the containment building and testing of the waste gas processing systems for effluent cover gas and effluent cell atmosphere gases. The basic test methods and test results for these areas of the FFTF startup program are presented.
Date: December 1, 1979
Creator: Bliss, R. J. & Hunter, J. R.
Partner: UNT Libraries Government Documents Department
open access

Fossil energy research meeting

Description: U.S. ERDA's research programs in fossil energy are reviewed with brief descriptions, budgets, etc. Of general interest are discussions related to the capabilities for such research of national laboratories, universities, energy centers, etc. Of necessity many items are treated briefly, but a general overview of the whole program is provided. (LTN)
Date: December 1, 1977
Creator: Kropschot, R. H. & Phillips, G. C.
Partner: UNT Libraries Government Documents Department
open access

Materials testing using laser energy deposition

Description: A convenient method for determining the elastic constants of materials has been devised using the energy from a Q-switched neodymium-glass laser. Stress waves are induced in materials having circular rod or rectangular bar geometries by the absorption of energy from the laser. The wave transit times through the material are recorded with a piezoelectric transducer. Both dilatation and shear wave velocities are determined in a single test using an ultrasonic technique and these velocities are us… more
Date: December 20, 1977
Creator: Wilcox, W.W. & Calder, C.A.
Partner: UNT Libraries Government Documents Department
open access

Particle Cosmology Comes of Age

Description: The application of modern ideas in particle physics to astrophysical and cosmological settings is a continuation of a fruitful tradition in astrophysics which began with the application of atomic physics, and then nuclear physics. In the past decade particle cosmology and particle astrophysics have been recognized as 'legitimate activities' by both particle physicists and astrophysicists and astronomers. During this time there has been a high level of theoretical activity producing much specula… more
Date: December 1, 1987
Creator: Turner, M. S.
Partner: UNT Libraries Government Documents Department
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Richtmyer-Meshkov instabilities in stratified fluids

Description: We present an analytic theory of Richtmyer-Meshkov instabilities in an arbitrary number N of stratified fluids subjected to a shock. Following our earlier work on Rayleigh-Taylor instabilities, the theory assumes incompressible flow in which a shock is treated an impulsive acceleration, g = ..delta.. v delta(tau/sub s), ..delta..v being the jump velocity induced in the system by a shock at time tau/sub s/. We discuss the special cases N = 2 and N = 3, and illustrate both Rayleigh-Taylor and Ric… more
Date: December 16, 1983
Creator: Mikaelian, K.O.
Partner: UNT Libraries Government Documents Department
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Occurrence and use of complex resonances (poles in scattering and radiation problems)

Description: In a wide variety of physics problems, especially those which involve wave phenomena such as in electromagnetics and acoustics, a behavior results that can be described by systems of linear (partial) differential equations. Solutions to such problems often can be expressed simply in the form of an exponential series. Some specific background material for this approach is discussed, and a variety of example applications is summarized. (WHK)
Date: December 15, 1981
Creator: Miller, E. K.
Partner: UNT Libraries Government Documents Department
open access

Measurements of the hydrogenic recombination coefficient for the TFTR vacuum vessel

Description: Characteristic values of the recombination rate coefficient for hydrogen and deuterium in stainless steel have been measured for the inner wall of the TFTR vacuum vessel for vessel temperatures of 25 to 100 C. In situ measurements of k/sub r/ are important for predicting the hydrogen isotope retention in the wall as a function of time, temperature, and discharge exposure, particularly because existing laboratory measurements of k/sub r/ for stainless steel span a range of four orders of magnitu… more
Date: December 1, 1983
Creator: Dylla, H. F.; Cecchi, J. L. & Knize, R. J.
Partner: UNT Libraries Government Documents Department
open access

Overview of geotechnical methods to characterize rock masses

Description: The methods that are used to characterize discontinuous rock masses from a geotechnical point of view are summarized. Emphasis is put on providing key references on each subject. The topics of exploration, in-situ stresses, mechanical properties, thermal properties, and hydraulic properties are addressed.
Date: December 1, 1981
Creator: Heuze, F.E.
Partner: UNT Libraries Government Documents Department
open access

Monopole search using an accelerator detector

Description: A neutrino detector at the Brookhaven AGS has been used to investigate the feasibility of using an already constructed apparatus for GUT monopole searches. A flux limit (90%CL) of 5.2 x 10/sup -12/ cm/sup -2/ sec/sup -1/ str/sup -1/ was found. The limitations of such an approach are discussed.
Date: December 20, 1983
Creator: Ahrenes, L.A.; Aronson, S.H.; Connolly, P.L.; Erickson, T.E.; Gibbard, B.G.; Montag, M. et al.
Partner: UNT Libraries Government Documents Department
open access

Laser-damage thresholds of thin-film optical coatings at 248 nm

Description: We have measured the laser-induced damage thresholds for 248 nm wavelength light of over 100 optical coatings from commercial vendors and research institutions. All samples were irradiated once per damage site with temporally multi-lobed, 20-ns pulses generated by a KrF laser. The survey included high, partial, and dichroic reflectors, anti-reflective coatings, and single layer films. The samples were supplied by ten vendors. The majority of samples tested were high reflectors and antireflectiv… more
Date: December 11, 1981
Creator: Milam, D.; Rainer, F. & Lowdermilk, W.H.
Partner: UNT Libraries Government Documents Department
open access

Magnetron co-sputtering system for coating ICF targets

Description: Fabrication of Inertial Confinement Fusion (ICF) targets requires deposition of various types of coatings on microspheres. The mechanical strength, and surface finish of the coatings are of concern in ICF experiments. The tensile strength of coatings can be controlled through grain refinement, selective doping and alloy formation. We have constructed a magnetron co-sputtering system to produce variable density profile coatings with high tensile strength on microspheres. The preliminary data on … more
Date: December 9, 1981
Creator: Hsieh, E. J.; Meyer, S. F.; Halsey, W. G.; Jameson, G. T. & Wittmayer, F. J.
Partner: UNT Libraries Government Documents Department
open access

Recent measurements of the B hadron lifetime

Description: Recent measurements of the B hadron lifetime from PEP and PETRA experiments are presented. These measurements firmly establish that the B lifetime is long (approx.1 psec), implying that the mixing between the third generation of quarks and the lighter quarks is much weaker that the mixing between the first two generations.
Date: December 1, 1987
Creator: Ong, R.A.
Partner: UNT Libraries Government Documents Department
open access

Nuclear physics and cosmology

Description: Nuclear physics has provided one of the 2 critical observational tests of all Big Bang cosmology, namely Big Bang Nucleosynthesis. Furthermore, this same nuclear physics input enables a prediction to be made about one of the most fundamental physics questions of all, the number of elementary particle families. This paper reviews the standard Big Bang Nucleosynthesis arguments. The primordial He abundance is inferred from He--C and He--N and He--O correlations. The strengthened Li constraint as … more
Date: December 1, 1989
Creator: Schramm, D. N.
Partner: UNT Libraries Government Documents Department
open access

Conservation laws in the monopole-fermion system

Description: It is shown that the monopole induced baryon number non-conservation is a necessary consequence of the exact conservation laws of the full four dimensional fermion-gauge field-Higgs system and properties of the J=0 partial wave fermions. It is also shown that the charge associated with the unbroken gauge symmetry is exactly conserved in the monopole-fermion interaction. 11 references.
Date: December 1, 1983
Creator: Sen, A.
Partner: UNT Libraries Government Documents Department
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Analysis of production data from the Krafla geothermal field, Iceland

Description: The analysis of flow rate and enthalpy data from several wells completed in the same two-phase zone of Krafla geothermal reservoir has yielded consistent relative permeability parameters. It is found that k/sub rl/ + k/sub rv/ = 1 over the entire range of two-phase flow conditions from immobile liquid to immobile vapor. The available data provide relative permeability parameters as a function of flowing enthalpy only. The relationship between flowing enthalpy and in-place vapor saturation remai… more
Date: December 1, 1983
Creator: Pruess, K.; Bodvarsson, G. S. & Stefansson, V.
Partner: UNT Libraries Government Documents Department
open access

Search for tau decays to the eta meson

Description: Using a sample of 530,000 tau leptons collected by the Crystal Ball experiment at the e/sup +/e/sup -/ storage ring DORIS II, we have searched for tau decays to the eta meson. No eta signal is found in the inclusive analysis, tau ..-->.. eta X, of 1-prong decays, leading to the upper limits, BR(tau/sup -/ ..-->.. nu ..pi../sup -/eta) <0.3%, BR(tau/sup -/ ..-->.. ..pi../sup -/..pi../sup 0/eta) <0.9%, BR(tau/sup -/ ..-->.. nu ..pi../sup -/..pi../sup 0/..pi../sup 0/eta) <3.1%, BR(tau/sup -/ ..-->.… more
Date: December 1, 1987
Creator: Skwarnicki, T.
Partner: UNT Libraries Government Documents Department
open access

Radioactive gas and hydrogen removal after a LOCE at the LOFT Facility

Description: The use of a silver-zeolite halogen adsorber placed in series with a hydrogen catalytic recombiner and a cryogenic noble gas adsorber assembly constitutes a waste gas processing system (WGPS) capable of handling hydrogen and fission product gases following a Loss-of-Coolant Experiment (LOCE). This paper describes: the types and quantities of gases expected to be found at the facility after a failed-fuel LOCE; the purpose of the WGPS; and the general configuration and expected decontamination fa… more
Date: December 17, 1979
Creator: McCormick-Barger, J.W. & Sumpter, K.C.
Partner: UNT Libraries Government Documents Department
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