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Modeling of Fission Gas Release in UO2

Description: A two-stage gas release model was examined to determine if it could provide a physically realistic and accurate model for fission gas release under Prometheus conditions. The single-stage Booth model [1], which is often used to calculate fission gas release, is considered to be oversimplified and not representative of the mechanisms that occur during fission gas release. Two-stage gas release models require saturation at the grain boundaries before gas is release, leading to a time delay in rel… more
Date: January 23, 2006
Creator: Krohn, MH
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Comparison of Packed Beds and Qiagen Columns for Recovering Trace Amounts of B. anthracis DNA from Liquid Suspensions

Description: The goal of this work was to optimize and evaluate LLNL's in-bed amplification technology to improve the level of detection for suspensions containing trace amounts of anthracis DNA. The binding/cleaning performance of the packed bed is compared to the conventional commercial approach; Qiagen column cleanup and elution, followed by detection through an ex-situ amplification process. Five liquid suspensions were spiked with B.anthracis DNA in concentration series. These suspensions were: (1) wat… more
Date: June 23, 2006
Creator: Sorensen, K; Arroyo, E; Erler, A; Christian, A T; Camp, D & Wheeler, E K
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

International Symposium on Site Characterization for CO2Geological Storage

Description: Several technological options have been proposed to stabilize atmospheric concentrations of CO{sub 2}. One proposed remedy is to separate and capture CO{sub 2} from fossil-fuel power plants and other stationary industrial sources and to inject the CO{sub 2} into deep subsurface formations for long-term storage and sequestration. Characterization of geologic formations for sequestration of large quantities of CO{sub 2} needs to be carefully considered to ensure that sites are suitable for long-t… more
Date: February 23, 2006
Creator: Tsang, Chin-Fu
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Characterization of NIR InGaAs imager arrays for the JDEM SNAPmission concept

Description: We present the results of a study of the performance of InGaAs detectors conducted for the SuperNova Acceleration Probe (SNAP) dark energy mission concept. Low temperature data from a nominal 1.7um cut-off wavelength 1kx1k InGaAs photodiode array, hybridized to a Rockwell H1RG multiplexer suggest that InGaAs detector performance is comparable to those of existing 1.7um cut-off HgCdTe arrays. Advances in 1.7um HgCdTe dark current and noise initiated by the SNAP detector research and development … more
Date: May 23, 2006
Creator: Seshadri, S.; Cole, M. D.; Hancock, B.; Ringold, P.; Wrigley, C.; Bonati, M. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

DETONATION PRESSURE MEASUREMENTS ON PETN

Description: PETN is widely recognized as an example of nearly ideal detonation performance. The chemical composition is such that little or no carbon is produced in the detonation products. The reaction zone width is less than currently detectable. (<1 ns) Observations on PETN have thus become a baseline for EOS model predictions. It has therefore become important to characterize the detonation parameters as accurately as possible in order to provide the most exacting comparisons of EOS predictions with… more
Date: June 23, 2006
Creator: Green, L. G. & Lee, E. L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

COMPARATIVE CORROSION BEHAVIOR OF TWO PALLADIUM CONTAINING TITANIUM ALLOYS

Description: The ASTM standard B 265 provides the requirements for the chemical composition of titanium (Ti) alloys. It is planned to use corrosion resistant and high strength titanium alloys to fabricate the drip shield at the proposed Yucca Mountain Repository. Titanium grade (Gr) 7 (R52400) and other Ti alloys are currently being characterized for this application. Ti Gr 7 contains 0.15% Palladium (Pd) to increase its corrosion performance. In this article we report results on the comparative short term … more
Date: July 23, 2006
Creator: T. Lian, T. Yashiki, T. Nakayama, T. Nakanishi, R. B. Rebak
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Performance and Capabilities of the NASA Space Radiation Laboratory at BNL.

Description: The NASA Space Radiation Laboratory (NSRL) at BNL was commissioned in October 2002 and the facility became operational in July 2003. NSRL was constructed in collaboration with NASA for the purpose of performing radiation effect studies for the NASA space program. NSRL can accept a wide variety of ions from BNL's AGS Booster; these are slow extracted with kinetic energies ranging from 0.3 to 3 GeV/n. Fast extraction from Booster to NSRL has also been developed and used. Many different beam condi… more
Date: June 23, 2006
Creator: Brown, K. A.; Ahrens, L.; Chiang, I. H.; Gardner, C.; Gassner, D.; Hammons, L. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Improved Miscible Nitrogen Flood Performance Utilizing Advanced Reservoir Characterization and Horizontal Laterals in a Class I Reservoir -- East Binger (Marchand) Unit

Description: A significant work program was implemented from 2002 to 2005 in the East Binger Unit (''EBU'') miscible nitrogen injection project in an effort to reduce gas cycling and economically increase ultimate oil recovery. This work included the drilling of new wells, both horizontal and vertical, as well as pattern realignment through producer-to-injector conversions. Monitoring of overall performance of the pilot area continues. Response to the various projects continues to be very favorable. Injecti… more
Date: March 23, 2006
Creator: Sinner, Joe
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Rhic Operational Status and Upgrade Plans.

Description: Since 2000 RHIC has collided, at 8 energies, 4 combinations of ion species, ranging from gold ions to polarized protons, and including the collisions of deuterons with gold ions. During that time the heavy ion and polarized proton peak luminosities increased by two orders and one order of magnitude respectively. The average proton polarization in store reached 65%. Planned upgrades include the evolution to the Enhanced Design parameters by about 2008, the construction of an Electron Beam Ion So… more
Date: June 23, 2006
Creator: Fischer, W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Automation&Characterization of US Air Force Bench Top Wind Tunnels - Summary Report

Description: The United States Air Force Precision Measurement Equipment Laboratories (PMEL) calibrate over 1,000 anemometer probes per year. To facilitate a more efficient calibration process for probe-style anemometers, the Air Force Metrology and Calibration Program underwent an effort to modernize the existing PMEL bench top wind tunnels. Through a joint effort with the Department of Energy's Oak Ridge National Laboratory, the performance of PMEL wind tunnels was improved. The improvement consisted of n… more
Date: March 23, 2006
Creator: Hardy, J. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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