Office of Scientific & Technical Information Technical Reports - 241 Matching Results

Search Results

Results: 1 - 24 next
open access

2\beta + \gamma from B^0 to D^\mp K^0 \pi^\pm Decays at BaBar: aSimulation Study

Description: The authors present the results of a simulation study to perform the extraction of 2{beta} + {gamma} from B{sup 0} {yields} D{sup {-+}}K{sup 0}{pi}{sup {+-}} decays through a time-dependent Dalitz analysis of BaBar data.
Date: April 16, 2007
Creator: Polci, Francesco; Schune, Marie-Helene; Stocchi, Achille & /Orsay, LAL
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

16-APR-03 Final Release of ENDF/B-V for use with LLNL Codes

Description: The new data files were prepared in two steps. First, the ENDF/B-V database was translated to an ENDL-format ascii database. The ENDL ascii format is a point-wise tabular storage scheme where intermediate values are extracted via interpolation. Sufficient point-wise information was generated in the translation to insure an extraction tolerance of 0.1% for most of the data. The only exception is along the incident neutron energy axis of the outgoing particle energy probability density function w… more
Date: April 16, 2003
Creator: Hill, T S; McNabb, D P; Hedstrom, G W; Beck, B & Hagmann, C A
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Abelian Hidden Sectors at a GeV

Description: We discuss mechanisms for naturally generating GeV-scale hidden sectors in the context of weak-scale supersymmetry. Such low mass scales can arise when hidden sectors are more weakly coupled to supersymmetry breaking than the visible sector, as happens when supersymmetry breaking is communicated to the visible sector by gauge interactions under which the hidden sector is uncharged, or if the hidden sector is sequestered from gravity-mediated supersymmetry breaking. We study these mechanisms in … more
Date: April 16, 2009
Creator: Morrissey, David E.; Poland, David; U., /Harvard; Zurek, Kathryn & U., /Fermilab /Michigan
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Analysis of the impact of energy crops on water quality. Final report

Description: This report consists of two separate papers. The first, ``The potential use of agricultural simulation models in predicting the fate of nitrogen and pesticides applied to switchgrass and poplars,`` describes three models (CREAMS, GLEAMS, and EPIC) for the evaluation of the relationships which determine water quality in the agroecosystem. Case studies are presented which demonstrate the utility of these models in evaluating the potential impact of alternative crop management practices. The secon… more
Date: April 16, 1993
Creator: Hatfield, J. L. & Gale, W. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Analytical capabilities of RIMS: absolute sensitivity and isotopic analysis. [Resonance ionization mass spectrometry]

Description: The cw laser RIMS approach has been demonstrated to accurately measure large Lu isotope ratios and detect small levels of minor isotopes even in the presence of isobaric interferences. The same approach can also be used to obtain high resolution optical spectra of rare isotopes. For elements with higher ionization potentials (e.g., Tc), multicolor ionization schemes are necessary for cw RIMS measurements. Two-color RIMS spectra of Tc using pulsed lasers illustrate the feasibility of this approa… more
Date: April 16, 1984
Creator: Nogar, N. S.; Downey, S. W. & Miller, C. M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Applications of gamma-ray spectrometry in the quantitative nondestructive assay of special nuclear materials

Description: Nearly all applications of gamma-ray spectrometry in the quanitative assay of special nuclear materials can be grouped into five general categories. They are as follows: (1) Quanitative passive assay, of which transmission-corrected passive assay methods for measuring isotopic masses/concentrations are an important subset; (2) Enrichment measurements on infinitely thick'' samples for absolute determination of isotopic fractions/concentrations; (3) Measurements of isotopic ratios using relative … more
Date: April 16, 1990
Creator: Sampson, Thomas E. & Parker, Jack L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Applications of Photonuclear Physics for International Safeguards and Security

Description: Studies of nuclear resonance fluorescence based applications are presented. Important for these applications are data for isotopes such as {sup 239}Pu. Nuclear resonance fluorescence measurements of {sup 239}Pu were performed at the free electron laser facility at UC Santa Barbara using photons from a bremsstrahlung beam with an endpoint energies between 4.0 MeV and 5.5 MeV. Though no discrete states with significant confidence level were measured, we have excluded the region above 27(3) eV-bar… more
Date: April 16, 2010
Creator: Johnson, M. S.; Hall, J. M.; McNabb, D. P.; McFarland, J.; Norman, E.; Bertozzi, W. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

ARIES segmented gamma-ray scanner user manual

Description: The segmented gamma-ray scatter (SGS) designated as Win{_}SGS at the Los Alamos Plutonium Facility has been installed and is intended for use in quantifying the radioisotope content of DOE-STD-3013-96 equivalent containers. The SGS features new software written in C and a new user interface that runs under Microsoft Windows{trademark}. The operation of the ARIES Segmented Gamma-ray Scanner is documented in this manual. It covers user instructions as well as hardware and software details. Additi… more
Date: April 16, 1998
Creator: Biddle, R. S.; Sheppard, G. A. & Schneider, C. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Assessment of Contribution of Contemporary Carbon Sources to Size-Fractionated Particulate Matter and Time-Resolved Bulk Particulate Matter Using the Measurement of Radiocarbon

Description: This study was motivated by a desire to improve understanding of the sources contributing to the carbon that is an important component of airborne particulate matter (PM). The ultimate goal of this project was to lay a ground work for future tools that might be easily implemented with archived or routinely collected samples. A key feature of this study was application of radiocarbon measurement that can be interpreted to indicate the relative contributions from fossil and non-fossil carbon sour… more
Date: April 16, 2009
Creator: Hwang, H. M.; Young, T. M. & Buchholz, B. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Assessment of the Incentives, Disincentives, and Alternatives for Steel Industry CO2 Reduction

Description: This report presents the results of the third element of a trilogy of studies sponsored by the U.S. Department of Energy's Office of Industrial Technologies on the consumption of energy and the emissions of carbon dioxide in the U.S. steel industry
Date: April 16, 2002
Creator: Leuchte, Paul T.; Stubbles, DR. John & Fruehan, Professor
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Astro-E2 XRS/EBIT Microcalorimeter XC-ray Spectrometer

Description: The X-ray Spectrometer (XRS) instrument is a revolutionary non-dispersive spectrometer that will form the basis for the Astro-E2 observatory to be launched in 2005. We have recently installed a flight spare XRS microcalorimeter spectrometer at the EBIT-I and SuperEBIT facility at LLNL replacing the XRS from the earlier Astro-E mission and providing twice the resolving power. The XRS microcalorimeter is an x-ray detector that senses the heat deposited by the incident photon. It achieves a high e… more
Date: April 16, 2004
Creator: Porter, F S; Brown, G V; Boyce, K R; Kelley, R L; Kilbourne, C A; Beiersdorfer, P et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Asymmetric Intramolecular Alkylation of Chiral Aromatic Imines via Catalytic C-H Bond Activation

Description: The asymmetric intramolecular alkylation of chiral aromatic aldimines, in which differentially substituted alkenes are tethered meta to the imine, was investigated. High enantioselectivities were obtained for imines prepared from aminoindane derivatives, which function as directing groups for the rhodium-catalyzed C-H bond activation. Initial demonstration of catalytic asymmetric intramolecular alkylation also was achieved by employing a sterically hindered achiral imine substrate and catalytic… more
Date: April 16, 2007
Creator: Watzke, Anja; Wilson, Rebecca; O'Malley, Steven; Bergman, Robert & Ellman, Jonathan
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Atomic Scale Chemical and Structural Characterization of Ceramic Oxide Heterostructure Interfaces

Description: The research plan was divided into three tasks: (a) growth of oxide heterostructures for interface engineering using standard thin film deposition techniques, (b) atomic level characterization of oxide heterostructure using such techniques as STEM-2 combined with AFM/STM and conventional high-resolution microscopy (HRTEM), and (c) property measurements of aspects important to oxide heterostructures using standard characterization methods, including dielectric properties and dynamic cathodolumin… more
Date: April 16, 2003
Creator: Singh, R. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Bench-scale testing of on-line control of column flotation using a novel analyzer. Second quarterly technical progress report, January 1, 1993--March 31, 1993

Description: This document contains the second quarterly technical progress report for PTI`s Bench-Scale Testing Project of a circuit integrating PTI`s KEN-FLOTE{trademark} Column Flotation Technology and PTI`s On-Line Quality Monitor and Control System. The twelve-month project involves installation and testing of a 200--300 lb/hr. bench-scale testing circuit at PETC`s Coal Preparation Process Research Facility (CPPRF) for two bituminous coals (Upper Freeport and Pittsburgh No. 8 Seam Raw Coals). The proje… more
Date: April 16, 1993
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Bigplate: an oblique angle explosive EOS test

Description: Bigplate is an advanced explosive equation of state (EOS) test. It consists of a point detonator driving a large disc (100 mm radius) of explosive, which pushes a 0.5 mm thick copper or tantalum plate. The plate is observed by a five-beam Fabry-Perot interferometer, which has beams at 0, 10, 20,40 and 80 mm on the plate. A short Fabry gives the jump-off to high accuracy; a long Fabry runs out to I0-15 microsec. A detailed error analysis is given, with the final velocity measurements considered … more
Date: April 16, 1998
Creator: Anderson, S; Avara, R; Fried, L; Janzen, J; McGuire, E; Souers, P C et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Biofuels News--Winter 2001, Vol. 4, No. 1

Description: Newsletter for the DOE Biofuels Program. Articles on collaborative projects with USDA, and OIT. Contains an interview with Doug Kaempf, co-director of the National Biobased Products and Bioenergy Coordination Office.
Date: April 16, 2001
Creator: Tuttle, J.H.
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
open access

BLOWER SYSTEM DYNAMICS

Description: An analysis is presented of the dynamics of a turboblower acting together with its connecting circuit. This is to be distinguished from the aero- thermodynamics involved in the design of the blower itself. The effect on system stability of blower and circuit characteristics is discussed. (auth)
Date: April 16, 1958
Creator: Furgerson, W.T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Branching Fraction and Charge Asymmetry Measurements inB to J/psi pi pi Decays

Description: The authors study the decays B{sup 0} {yields} J/{psi} {pi}{sup +}{pi}{sup -} and B{sup +} {yields} J/{psi} {pi}{sup +}{pi}{sup 0}, including intermediate resonances, using a sample of 382 million B{bar B} pairs recorded by the BABAR detector at the PEP-II e{sup +}e{sup -} B factory. They measure the branching fractions {Beta}(B{sup 0} {yields} J/{psi} {rho}{sup 0}) = (2.7 {+-} 0.3 {+-} 0.17) x 10{sup -5} and {Beta}(B{sup +} {yields} J/{psi} {rho}{sup +}) = (5.0 {+-} 0.7 {+-} 0.31) x 10{sup -5}… more
Date: April 16, 2007
Creator: Aubert, B.; Bona, M.; Boutigny, D.; Karyotakis, Y.; Lees, J. P.; Poireau, V. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Breazeale Reactor Modernization Program

Description: The Penn State Breazeale Nuclear Reactor is the longest operating licensed research reactor in the nation. The facility has played a key role in educating scientists, engineers and in providing facilities and services to researchers in many different disciplines. In order to remain a viable and effective research and educational institution, a multi-phase modernization project was proposed. Phase I was the replacement of the 25-year old reactor control and safety system along with associated wi… more
Date: April 16, 2003
Creator: Davison, C. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Building a programmable interface for physics codes using numeric python

Description: With its portability, ease to add built-in functions and objects in C, and fast array facility among many other features, Python proved to be an excellent language for creating programmable scientific applications. In addition to the two modules presented, there are also other progresses at LLNL in using Python. For example, Python interfaces are being developed for at least three graphics packages, and Python interpreter and applications have been built on distributed platforms such as meiko a… more
Date: April 16, 1996
Creator: Yang, T.-Y.B.; Dubois, P.F. & Motteler, Z.C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

CALCULATION OF DEMONSTRATION BULK VITRIFICATION SYSTEM MELTER INLEAKAGE AND OFF-GAS GENERATION RATE

Description: The River Protection Project (RPP) mission is to safely store, retrieve, treat, immobilize, and dispose of the Hanford Site tank waste. The Demonstration Bulk Vitrification System (DBVS) is a research and development project whose objective is to demonstrate the suitability of Bulk Vitrification treatment technology waste form for disposing of low-activity waste from the Tank Farms. The objective of this calculation is to determine the DBVS melter inleakage and off-gas generation rate based on … more
Date: April 16, 2008
Creator: TH, MAY
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
Back to Top of Screen