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2-D Reflectometer Modeling for Optimizing the ITER Low-field Side Reflectometer System

Description: The response of a low-field side reflectometer system for ITER is simulated with a 2?D reflectometer code using a realistic plasma equilibrium. It is found that the reflected beam will often miss its launch point by as much as 40 cm and that a vertical array of receiving antennas is essential in order to observe a reflection on the low-field side of ITER.
Date: September 2, 2005
Creator: Kramer, G. J.; Nazikian, R.; Valeo, E. J.; Budny, R. V.; Kessel, C. & Johnson, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

3-D Model of Broadband Emission from Supernova Remnants Undergoing Non-linear Diffusive Shock Acceleration

Description: We present a 3-dimensional model of supernova remnants (SNRs) where the hydrodynamical evolution of the remnant is modeled consistently with nonlinear diffusive shock acceleration occurring at the outer blast wave. The model includes particle escape and diffusion outside of the forward shock, and particle interactions with arbitrary distributions of external ambient material, such as molecular clouds. We include synchrotron emission and cooling, bremsstrahlung radiation, neutral pion production… more
Date: July 2, 2008
Creator: Lee, Shiu-Hang; Kamae, Tuneyoshi & Ellison, Donald C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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3 GeV Booster Synchrotron Conceptual Design Report

Description: Synchrotron light cna be produced from a relativistic particle beam circulating in a storage ring at extremely high intensity and brilliance over a large spectral region reaching from the far infrared regime to hard x-rays. The particles, either electrons or positrons, radiate as they are deflected in the fields of the storage ring bending magnets or of magnets specially optimized for the production of synchrotron light. The synchrotron light being very intense and well collimated in the forwar… more
Date: June 2, 2009
Creator: Wiedemann, Helmut
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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10-kJ Status and 100-kJ Future for NIF PetaWatt Technology

Description: We discuss the status of the NIF ARC, an 8-beam 10-kJ class high-energy petawatt laser, and the future upgrade path of this and similar systems to 100-kJ-class with coherent phasing of multiple apertures.
Date: July 2, 2007
Creator: Siders, C W; Crane, J K; Rushford, M C; Haefner, L C; Hernandez, J E; Dawson, J W et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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300 AREA URANIUM CONTAMINATION

Description: {sm_bullet} Uranium fuel production {sm_bullet} Test reactor and separations experiments {sm_bullet} Animal and radiobiology experiments conducted at the. 331 Laboratory Complex {sm_bullet} .Deactivation, decontamination, decommissioning,. and demolition of 300 Area facilities
Date: July 2, 2009
Creator: Borghese, J. V.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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137Cs and 210Po in Pacific Walrus and Bearded Seal from St. Lawrence Island, Alaska

Description: The activity concentration of Cesium-137 ({sup 137}Cs) and naturally-occurring Polonium-210 ({sup 210}Po) were measured in the muscle tissue, kidney and liver of Pacific walrus (Odobenus rosmarus divergens) and bearded seal (Erignathus barbatus) collected by native hunters from the Bering Sea. The mean {sup 137}Cs concentrations in muscle, liver and kidney of Pacific walrus were 0.07, 0.09 and 0.07 Bq kg{sup -1} (N= 5, wet weight), respectively, and 0.17, 0.10, and 0.17 Bq kg{sup -1} (N=2, wet … more
Date: February 2, 2005
Creator: Hamilton, T F; Seagars, D J; Jokela, T & Layton, D
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

2002 Gordon Research Conference on Mutagenesis. Final Progress Report

Description: The Gordon Research Conference (GRC) on MUTAGENESIS was held at Bates College from 7/28/02 thru 8/2/02. The Conference was well-attended with 157 participants. The attendees represented the spectrum of endeavor in this field coming from academia, industry, and government laboratories, both U.S. and foreign scientists, senior researchers, young investigators, and students.
Date: August 2, 2002
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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2003 Brookhaven National Laboratory Annual Illness and Injury Surveillance Report, Revised September 2007

Description: Annual Illness and Injury Surveillance Program report for 2003 for Brookhaven National Lab. The U.S. Department of Energy’s (DOE) commitment to assuring the health and safety of its workers includes the conduct of epidemiologic surveillance activities that provide an early warning system for health problems among workers. The IISP monitors illnesses and health conditions that result in an absence of workdays, occupational injuries and illnesses, and disabilities and deaths among current workers. more
Date: October 2, 2007
Creator: United States. Department of Energy. Office of Illness and Injury Prevention Programs.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

2008 B20 Survey Results

Description: Describes results of a sample survey of the quality of B20, a biodiesel blend, collected from U.S. public pumps and fleets as part of a joint effort by NREL, the NBB, and engine manufacturers.
Date: February 2, 2009
Creator: Alleman, T. L. & McCormick, R. L.
Item Type: Refine your search to only Presentation
Partner: UNT Libraries Government Documents Department
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235U and TRU Holdup Measurements on the 321-M Sawbenches

Description: The Analytical Development Section of Savannah River Technology Center (SRTC) was requested by the Facilities Disposition Projects (FDP) to determine the holdup of enriched uranium in the 321-M facility as part of an overall deactivation project of the facility. The 321-M facility was used to fabricate enriched uranium fuel assemblies, lithium-aluminum target tubes, neptunium assemblies, and miscellaneous components for the production reactors. The results of the holdup assays are essential for… more
Date: July 2, 2004
Creator: Dewberry, R
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A 3D Contact Smoothing Method

Description: Smoothing of contact surfaces can be used to eliminate the chatter typically seen with node on facet contact and give a better representation of the actual contact surface. The latter affect is well demonstrated for problems with interference fits. In this work we present two methods for the smoothing of contact surfaces for 3D finite element contact. In the first method, we employ Gregory patches to smooth the faceted surface in a node on facet implementation. In the second method, we employ a… more
Date: May 2, 2002
Creator: Puso, M. A. & Laursen, T. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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7Be(p,(gamma))8B S-factor from Ab Initio No-Core Shell Model Wave Functions

Description: Nuclear structure of {sup 7}Be, {sup 8}B and {sup 7,8}Li is studied within the ab initio no-core shell model (NCSM). Starting from high-precision nucleon-nucleon (NN) interactions, wave functions of {sup 7}Be and {sup 8}B bound states are obtained in basis spaces up to 10 h bar{Omega} and used to calculate channel cluster form factors (overlap integrals) of the {sup 8}B ground state with {sup 7}Be+p. Due to the use of the harmonic oscillator (HO) basis, the overlap integrals have incorrect asym… more
Date: December 2, 2005
Creator: Navratil, P; Bertulani, C A & Caurier, E
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Ab Initio and Ab Exitu No-Core Shell Model

Description: We outline two complementary approaches based on the no core shell model (NCSM) and present recent results. In the ab initio approach, nuclear properties are evaluated with two-nucleon (NN) and three-nucleon interactions (TNI) derived within effective field theory (EFT) based on chiral perturbation theory (ChPT). Fitting two available parameters of the TNI generates good descriptions of light nuclei. In a second effort, an ab exitu approach, results are obtained with a realistic NN interaction … more
Date: October 2, 2007
Creator: Vary, J. P.; Navratil, P.; Gueorguiev, V. G.; Ormand, W. E.; Nogga, A.; Maris, P. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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AB Initio Calculations of Elastic Constants of BCC V-NB System at High Pressures

Description: First-principles total energy calculation based on the exact muffin-tin orbital and full potential linear muffin-tin orbital methods were used to calculate the equation of state and shear elastic constants of bcc V, Nb, and the V{sub 95}Nb{sub 05} disordered alloy as a function of pressure up to 6 Mbar. We found a mechanical instability in C{sub 44} and a corresponding softening in C at pressures {approx} 2 Mbar for V. Both shear elastic constants show softening at pressures {approx} 0.5 Mbar f… more
Date: May 2, 2005
Creator: Landa, A; Klepeis, J; Soderlind, P; Naumov, I; Velikokhatnyi, O; Vitos, L et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Ab-Initio No-Core Shell Model

Description: We discuss the no-core shell model approach, an ab initio method with effective Hamiltonians derived from realistic nucleon-nucleon (NN) potentials as a function of the finite harmonic-oscillator (HO) basis space. We present results for three and four nucleon systems in model spaces that include up to 50{Dirac_h}{Omega} and 18{bar h}{Omega} HO excitations, respectively. For these light systems we are in agreement with results obtained by other exact methods. Also, we calculate the properties of… more
Date: March 2, 2001
Creator: Barrett, B R; Navratil, P; Vary, J P & Ormand, W E
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

AC magnetohydrodynamic microfluidic switch

Description: A microfluidic switch has been demonstrated using an AC Magnetohydrodynamic (MHD) pumping mechanism in which the Lorentz force is used to pump an electrolytic solution. By integrating two AC MHD pumps into different arms of a Y-shaped fluidic circuit, flow can be switched between the two arms. This type of switch can be used to produce complex fluidic routing, which may have multiple applications in {micro}TAS.
Date: March 2, 2000
Creator: Lemoff, A V & Lee, A P
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Accelerating and Colliding Polarized Protons in RHIC With Siberian Snakes

Description: We successfully injected polarized protons in both RHIC rings and maintained polarization during acceleration up to 100 GeV per ring using two Siberian snakes in each ring. Each snake consists of four helical superconducting dipoles which rotate the polarization by 180{sup o} about a horizontal axis. This is the first time that polarized protons have been accelerated to 100 GeV. We report on our experiences during commissioning and operation of collider with polarized protons.
Date: June 2, 2002
Creator: Roser, T.; Ahrens, L.; Alessi, J.; Bai, M.; Beebe-Wang, J.; Brennan, J. M. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

ACCELERATING POLARIZED PROTONS TO HIGH ENERGY.

Description: The Relativistic Heavy Ion Collider (RHIC) is designed to provide collisions of high energy polarized protons for the quest of understanding the proton spin structure. Polarized proton collisions at a beam energy of 100 GeV have been achieved in RHIC since 2001. Recently, polarized proton beam was accelerated to 250 GeV in RHIC for the first time. Unlike accelerating unpolarized protons, the challenge for achieving high energy polarized protons is to fight the various mechanisms in an accelerat… more
Date: October 2, 2006
Creator: Bai, M.; Ahrens, L.; Alekseev, I. G.; Alessi, J.; Beebe-Wang, J.; Blaskiewicz, M. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Acceptable Knowledge Summary Report for Mixed TRU Waste Streams: SR-W026-221F-HET-A through D

Description: This document, along with referenced supporting documents provides a defensible and auditable record of acceptable knowledge for the heterogeneous debris mixed transuranic waste streams generated in the FB-Line after January 25, 1990 and before March 20, 1997.
Date: October 2, 2001
Creator: Lunsford, G.F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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