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14 MeV neutron work at the Lawrence Livermore National Laboratory

Description: The 14 MeV neutron work at Lawrence Livermore National Laboratory (LLNL) covers two main areas of interest to this Symposium: (1) measurements and calculations of differential cross sections; and (2) integral measurements of the neutron and gamma emission spectra. In both areas a large number of materials have been studied, spanning a wide mass range (6 < A < 239), of interest to fusion and hybrid reactors. In this presentation a brief description of the experimental techniques and calculationa… more
Date: July 1, 1985
Creator: Hansen, L. F.
open access

Accelerator physics experiments at Aladdin

Description: The Aladdin accelerator is a 1 GeV synchrotron light source located at the University of Wisconsin. The results of experimental studies of the Aladdin accelerator are described. The primary purpose of the experiments reported was to investigate reported anomalies in the behavior of the linear lattice, particularly in the vertical plane. A second goal was to estimate the ring broadband impedance. Experimental observations and interpretation of the linear properties of the Aladdin ring are descri… more
Date: July 1, 1985
Creator: Chattopadhyay, S.; Cornacchia, M.; Jackson, A. & Zisman, M. S.
open access

Adsorption of energy in photocatalytic reactors

Description: The dissociation of water to hydrogen and oxygen requires energy ..delta..G/sub 298/ = 228 kJ/mole. By irradiating a semiconductor with light of energy greater than this amount, one may produce electrons in the excited state and electron vacancies at the surface that can perform the photochemical reduction (2H/sup +/ + 2e/sup -/ ..-->.. 2H ..-->.. H/sub 2/) and oxidation (20H/sup -/ + 2/sup +/ ..-->.. H/sub 2/O/sub 2/ ..-->.. H/sub 2/O + (1/2)O/sub 2/). There are several semiconductors, SrTiO/s… more
Date: July 1, 1985
Creator: Somorjai, G.A.
open access

Alleged Fraud, Waste and, and Abuse: General Dynamics Corp.

Description: Numerous Federal agencies -- including the Justice Department and Congressional committees -- are investigating allegations of fraud at the Electric Boat Division of General Dynamics Corporation, the nation's third largest defense contractor. This issue brief provides a chronological summary, based on newspaper and magazine accounts, of each of these investigations.
Date: July 12, 1985
Creator: O'Rourke, Ronald
open access

Ambient Pressure Effects on the Sputter Particle Distribution of Insulating Materials

Description: The effect of ion bombardment on several grades of alumina was investigated. Changes in the electrical resistance of the substrate as a function of incoming ion energy were of particular interest. Attention was also paid to the sputter particle distribution as a function of ambient pressure. This distribution was found to be dependent on the ion to substrate mass ratio. In general, the distribution follows a curve of growth; approximating a cosine distribution at the lower pressures and mass ra… more
Date: July 1, 1985
Creator: Glaser, J. W.
open access

Artificial Sweeteners

Description: This report discusses the artificial sweeteners have been a source of controversy in the U.S. for over 73 years. One of the factors driving these issues has been an interplay of a large consumer demand for low calorie sweeteners and controversy concerning certain safety standards set forth in the Food, Drug and Cosmetic Act (FDCA.
Date: July 12, 1985
Creator: Taylor, Sarah E
open access

Assessment of near-surface dissolution at and near the Waste Isolation Pilot Plant (WIPP), southeastern New Mexico

Description: The area at and near the WIPP site was examined for evidence of karst development on the geomorphic surface encompassing the site. Certain surficial depressions of initial concern were identified as blowouts in sand dune fields (shallow features unrelated to karstification). An ancient stream system active more than 500,000 yr ago contained more water than any system since. During that time (Gatuna, Middle Pleistocene), many karst features such as Clayton Basin and Nash Draw began to form in th… more
Date: July 1, 1985
Creator: Bachman, G.O.
open access

The Balanced Budget Proposal: Some Macroeconomic Implications

Description: This brief report outlines some possible macroeconomic implications of observing a statutory or constitutional commitment to balance the Federal budget. It does not address the legal questions about the proposal or their implementation, nor the economic and political questions related to decisions about the level of Federal revenues or expenditures. On the latter, its analysis refers to revenue and expenditure levels, in relation to total national product, typical of recent years.
Date: July 29, 1985
Creator: Henderson, John B.
open access

Bioenergetics of Juvenile Salmon During the Spring Outmigration, 1983 Annual Report.

Description: Main stem reservoirs in the Columbia River Basin may have increased the energy demands of smolts during outmigration by prolonging migration and exposing smolts to seasonally rising water temperatures. A bioenergetic model for spring chinook salmon smolts (Oncorhynchus tshawytscha) is being developed to test these hypotheses. Results have thus far indicated that the seaward migration can be separated into two distinct phases. Phase I can be described as a period of intense smolt development in … more
Date: July 1, 1985
Creator: Rondorf, Dennis W.
open access

Biological trace element measurements using synchrotron radiation

Description: The feasibility of performing x-ray fluorescence trace element determinations at concentrations substantially below the ppM level for biological materials is demonstrated. Conditions for achieving optimum sensitivity were ascertained. Results achieved for five standard reference materials were, in most cases, in excellent agreement with listed values. Minimum detectable limits of 20 ppM were measured for most elements.
Date: July 1, 1985
Creator: Giauque, R. D.; Jaklevic, J. M. & Thompson, A. C.
open access

Birdcage neutron coincidence counter manual

Description: A thermal neutron coincidence counter has been constructed for the assay of fast critical assembly fuel plates stored in birdcages. Standard coincidence counting electronics are used. This manual describes the birdcage, the measurement system, and its performance characteristics. 3 refs.
Date: July 1, 1985
Creator: Krick, M. S.; Menlove, H. O. & Ramalho, A.
open access

Bounce-averaged Fokker-Planck code for stellarator transport

Description: A computer code for solving the bounce-averaged Fokker-Planck equation appropriate to stellarator transport has been developed, and its first applications made. The code is much faster than the bounce-averaged Monte-Carlo codes, which up to now have provided the most efficient numerical means for studying stellarator transport. Moreover, because the connection to analytic kinetic theory of the Fokker-Planck approach is more direct than for the Monte-Carlo approach, a comparison of theory and nu… more
Date: July 1, 1985
Creator: Mynick, H.E. & Hitchon, W.N.G.
open access

Brightness, coherence, and propagation characteristics of synchrotron radiation

Description: A formalism is presented by means of which the propagation and imaging characteristics of synchrotron radiation can be studied, taking into account the effects of diffraction, electron beam emittance, and the transverse and longitudinal extent of the source. An important quantity in this approach is the Wigner distribution of the electric fields, which can be interpreted as a phase-space distribution of photon flux, and thus can be identified with the brightness. When integrated over the angula… more
Date: July 1, 1985
Creator: Kim, K. J.
open access

Budget Deficits: Causes, Effects and Some Remedial Options

Description: In 1981 Congress enacted extensive changes in taxing and spending policies that supporters of these changes expected to generate sufficient revenues, despite a series of tax rate cuts, to balance the budget by FY84. After the onset of recession in early 1982, however, the Reagan Administration's projections showed widening budget deficits, which culminated in an actual FY83 deficit of $195.4 billion. Despite enactment of the Tax Equity and Fiscal Responsibility Act of 1982, and, more recently, … more
Date: July 15, 1985
Creator: Grinnell, David & Cox, William
open access

The Case for and Against an Import Surcharge

Description: The United States is now running a deficit of over $100 billion in its foreign trade and the Federal budget is in the red by roughly $200 billion. To deal with these two deficits, Congress is considering a temporary import surcharge. This brief examines the case for and against such a surcharge as well as its use against Japan.
Date: July 12, 1985
Creator: Reifman, Alfred
open access

Characterization of cell suspensions from solid tumors

Description: The desirable features of cells in suspension will necessarily be dependent upon the use for which the cells were prepared. Adequate cell yield or recovery is defined by the measurement to be performed. Retention of cellular morphology is important for microscopic identification of cell types in a heterogenous cell suspension, and may be used to determine whether the cells in suspension are representative of those in the tumor in situ. Different dispersal protocols may yield cells with differen… more
Date: July 10, 1985
Creator: Pallavicini, M.
open access

Chemical kinetics modeling of the influence of molecular structure on shock tube ignition delay

Description: The current capabilities of kinetic modeling of hydrocarbon oxidation in shock waves are discussed. The influence of molecular size and structure on ignition delay times are stressed. The n-paraffin fuels from CH/sub 4/ to n-C/sub 5/H/sub 12/ are examined under shock tube conditions, as well as the branched chain fuel isobutane, and the computed results are compared with available experimental data. The modeling results show that it is important in the reaction mechanism to distinguish between … more
Date: July 1, 1985
Creator: Westbrook, C.K. & Pitz, W.J.
open access

Clearance of Tc-99m DTPA Aerosol from Coal Miners' Lungs

Description: Alterations in regional epithelial permeability were assessed in 22 retired West Virginia coal miners' lungs by measuring the clearance of inhaled 0.5-..mu..m Tc-99m DTPA aerosol. Activity was measured in both lungs and in regions of interest placed over the lung periphery in the apical, middle, and basal portions of each lung. Clearance rates (T/sub 1/2/) for 5 nonsmokers, 8 ex-smokers, and 9 smokers were significantly faster than for comparable subjects measured elsewhere, who were not coal m… more
Date: July 1, 1985
Creator: Susskind, H.; Brill, A. B. & Harold, W. H.
open access

Collection and analysis of geothermal gases

Description: Rapid, reliable procedures are described for the collection and analysis of geothermal gases at Los Alamos National Laboratory. Gases covered are H/sub 2/, He, Ar, O/sub 2/, N/sub 2/, CH/sub 4/, C/sub 2/H/sub 6/, CO/sub 2/, and H/sub 2/S. The methods outlined are suitable for geothermal exploration. 8 refs., 5 figs., 2 tabs.
Date: July 1, 1985
Creator: Shevenell, L.; Goff, F.; Gritzo, L. & Trujillo, P. E., Jr.
open access

Commercial LFCM vitrification technology. Quarterly progress report, October-December 1984

Description: This report is the first in a series of quarterly reports compiled by the Nuclear Waste Treatment Program Office at Pacific Northwest Laboratory to document progress on commercial liquid-fed ceramic melter (LFCM) vitrification technology. Progress in the following technical subject areas during the first quarter of FY 1985 is discussed: pretreatment systems, melting process chemistry, glass development and characterization, feed preparation and transfer systems, melter systems, canister filling… more
Date: July 1, 1985
Creator: Burkholder, H. C. & Jarrett, J. H.
open access

Commercial Nuclear Waste Research and Development Program. Quarterly report, April-June 1985

Description: Support was provided to DOE/NV during preparation of a proposal, requested by the DOE San Francisco office, for performance of SP-100 Ground Engineering Systems tests at the E-MAD facility. The site selection committee visited the Nevada Test Site in May for a tour and briefings on all aspects of the proposal. The fuel assembly used in the two-year metal cask simulation test was removed from the test stand and characterized to document its post-test condition. Fuel assembly integrity monitoring… more
Date: July 1985
open access

Compilation of carbon-14 data

Description: A review and critical analysis was made of the original sources of carbon-14 in the graphite moderator and reflector zones of the eight Hanford production reactors, the present physical and chemical state of the carbon-14, pathways (other than direct combustion) by which the carbon-14 could be released to the biosphere, and the maximum rate at which it might be released under circumstances which idealistically favor the release. Areas of uncertainty are noted and recommendations are made for ob… more
Date: July 8, 1985
Creator: Paasch, R. A.
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