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Proceedings of the 23rd Seismic Research Symposium: Worldwide Monitoring of Nuclear Explosions

Description: These proceedings contain papers prepared for the 23rd Seismic Research Review: Worldwide Monitoring of Nuclear Explosions, held 2-5 October, 2001 in Jackson Hole, Wyoming. These papers represent the combined research related to ground-based nuclear explosion monitoring funded by the National Nuclear Security Administration (NNSA), Defense Threat Reduction Agency (DTRA), Air Force Technical Applications Center (AFTAC), the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO), and other in… more
Date: October 2, 2001
Creator: Warren, N. Jill & Chavez, Francesca C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Distributed drift chamber design for rare particle detection in relativistic heavy ion collisions

Description: This report describes a multi-plane drift chamber that was designed and constructed to function as a topological detector for the BNL AGSE896 rare particle experiment. The chamber was optimized for good spatial resolution, two track separation, and a high uniform efficiency while operating in a 1.6 Tesla magnetic field and subjected to long term exposure from a 11.6 GeV/nucleon beam of 10**6 Au ions per second.
Date: October 2, 2001
Creator: Bellwied, R.; Bennett, M. J.; Bernardo, V.; Caines, H.; Christie, W.; Costa, S. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Ion flux from vacuum arc cathode spots in the absence and presence of a magnetic field

Description: Because plasma production at vacuum cathode spots is approximately proportional to the arc current, arc current modulation can be used to generate ion current modulation that can be detected far from the spot using a negatively biased ion collector. The drift time to the ion detector can used to determine kinetic ion energies. A very wide range of cathode materials have been used. It has been found that the kinetic ion energy is higher at the beginning of each discharge and approximately consta… more
Date: October 2, 2001
Creator: Anders, Andre & Yushkov, George Yu.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Mechanical property testing of irradiated zircaloy cladding under reactor transient conditions.

Description: Specimen geometries have been developed to determine the mechanical properties of irradiated Zircaloy cladding subjected to the mechanical conditions and temperatures associated with reactivity-initiated accidents (RIA) and loss-of-coolant accidents (LOCA). Miniature ring-stretch specimens were designed to induce both uniaxial and plane-strain states of stress in the transverse (hoop) direction of the cladding. Also, longitudinal tube specimens were also designed to determine the constitutive p… more
Date: October 2, 2001
Creator: Daum, R. S.; Majumdar, S.; Tsai, H.; Bray, T. S.; Billone, M. C.; Koss, D. A. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Plasma Diagnostics in High Resolution X-Ray Spectra of Magnetic Cataclysmic Variables

Description: Using the Chandra HETG spectrum of EX Hya as an example, we discuss some of the plasma diagnostics available in high-resolution X-ray spectra of magnetic cataclysmic variables. Specifically, for conditions appropriate to collisional ionization equilibrium plasmas, we discuss the temperature dependence of the H- to He-like line intensity ratios and the density and photoexcitation dependence of the He-like R line ratios and the Fe XVII I(17.10 {angstrom})/I(17.05 {angstrom}) line ratio. We show t… more
Date: October 2, 2001
Creator: Mauche, Christopher W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: Swiss Air]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: October 2, 2001, 10:00 p.m.
Duration: 52 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
open access

Thermodynamic Modeling of the SRS Evaporators: Part II. The 3H System

Description: Accumulations of two solid phases have formed scale deposits in the Savannah River Site 2H Evaporator system since late 1996. The aluminosilicate scale deposits caused the evaporator pot to become inoperable in October 1999. Accumulations of the diuranate phase have caused criticality concerns in the SRS 2H Evaporator. In order to ensure that similar deposits are not and will not form in the SRS 3H Evaporator, thermodynamically derived activity diagrams specific to the feeds processed from Tank… more
Date: October 2, 2001
Creator: Jantzen, Carol M. & Laurinat, J. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Li Diffusion and High-Voltage Cycling Behavior of Thin-Film LiCoO2 Cathodes

Description: Mass transport and thermodynamic properties of Li{sub x}CoO{sub 2} were studied by the potentiostatic intermittent titration technique (PITT) using solid-state thin-film batteries that provide a well-defined diffusion geometry. Both the chemical diffusion coefficient and the thermodynamic factor have minima at the phase boundaries of the Li/vacancy ordered phase ''Li{sub 0.5}CoO{sub 2}''. The self-diffusion coefficient of Li has a minimum at x = 0.5 associated with the Li/vacancy ordering. As t… more
Date: October 2, 2001
Creator: Jang, Y.-I.
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
open access

Design of Metal Hydride Vessels for Processing Tritium

Description: Metal hydrides offer safe, compact and efficient ways to process tritium in areas including storage, pumping, compression, transportation and purification. Westinghouse at Savannah River Site in USA has developed and implemented metal hydride based technology for various tritium applications over the past 20 years. This paper presents our experience in designing different types of metal hydride vessels for tritium processing.
Date: October 2, 2001
Creator: Heung, L.K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Impact of the Low-Temperature Reactivity of Reillex(TM) HPQ on Actinide Processing

Description: Reactive System Screening Tool(TM) data and a computational model are used to predict the impact of pressurization on a typical process-scale ion exchange column due to gases generated by a low temperature exothermic reaction (LTE). The LTE results from a reaction between nitric acid and the ethylbenzene pendant groups of the Reillex(TM) HPQ resin. This reaction would occur if the resin bed were inadvertently heated above 70 degrees C.
Date: October 2, 2001
Creator: Laurinat, J.E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Organic Dye Effects on DNAPL Entry Pressure in Water Saturated Porous Media

Description: One of three diazo dyes with the same fundamental structure have been used in most studies of DNAPL behavior in porous media to stain the NAPL: Sudan III, Sudan IV, or Oil-Red-O. The dyes are generally implicitly assumed to not influence DNAPL behavior. That assumption was tested using simple entry pressure experiments.
Date: October 2, 2001
Creator: Iversen, G.M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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