Tank 40 Final Sludge Batch 8 Chemical Characterization Results (open access)

Tank 40 Final Sludge Batch 8 Chemical Characterization Results

A sample of Sludge Batch 8 (SB8) was pulled from Tank 40 in order to obtain radionuclide inventory analyses necessary for compliance with the Waste Acceptance Product Specifications (WAPS). The SB8 WAPS sample was also analyzed for chemical composition, including noble metals, and fissile constituents, and these results are reported here. These analyses along with the WAPS radionuclide analyses will help define the composition of the sludge in Tank 40 that is currently being fed to the Defense Waste Processing Facility (DWPF) as SB8. At SRNL, the 3-L Tank 40 SB8 sample was transferred from the shipping container into a 4-L high density polyethylene bottle and solids were allowed to settle. Supernate was then siphoned off and circulated through the shipping container to complete the transfer of the sample. Following thorough mixing of the 3-L sample, a 553 g sub-sample was removed. This sub-sample was then utilized for all subsequent slurry sample preparations. Eight separate aliquots of the slurry were digested, four with HNO{sub 3}/HCl (aqua regia) in sealed Teflon(r) vessels and four with NaOH/Na{sub 2}O{sub 2} (alkali or peroxide fusion) using Zr crucibles. Two Analytical Reference Glass - 1 (ARG-1) standards were digested along with a blank for each …
Date: September 19, 2013
Creator: Bannochie, Christopher J.
Object Type: Report
System: The UNT Digital Library
West Valley Demonstration Project Annual Site Environmental Report Calendar Year 2012 (open access)

West Valley Demonstration Project Annual Site Environmental Report Calendar Year 2012

The West Valley Demonstration Project (WVDP) Annual Site Environmental Report (ASER) for Calendar Year 2012. The report, prepared for the U.S. Department of Energy West Valley Demonstration Project office (DOE-WVDP), summarizes the environmental protection program at the WVDP for calendar year (CY) 2012. Monitoring and surveillance of the facilities used by the DOE are conducted to verify protection of public health and safety and the environment. The report is a key component of DOE’s effort to keep the public informed of environmental conditions at the WVDP. The quality assurance protocols applied to the environmental monitoring program ensure the validity and accuracy of the monitoring data. In addition to demonstrating compliance with environmental laws, regulations, and directives, evaluation of data collected in 2012 continued to indicate that WVDP activities pose no threat to public health or safety, or to the environment.
Date: September 19, 2013
Creator: Rendall, John D.; Steiner, Alison F. & Klenk, David P.
Object Type: Report
System: The UNT Digital Library
Magnet design and simulation (open access)

Magnet design and simulation

N/A
Date: August 19, 2013
Creator: W., Meng
Object Type: Article
System: The UNT Digital Library
Presentations by MIIS-LLNL Safeguards Policy Interns (open access)

Presentations by MIIS-LLNL Safeguards Policy Interns

None
Date: August 19, 2013
Creator: Anzelon, G. A.; Davydov, J. S.; Park, K. K.; McCarthy, K. T.; Kuwata, Y. A. & Wilbourne, J. L.
Object Type: Report
System: The UNT Digital Library
Progress with PXIE MEBT Chopper (open access)

Progress with PXIE MEBT Chopper

None
Date: August 19, 2013
Creator: Lebedev, V.; Chen, A.; Pasquinelli, R; Peterson, D.; Saewert, G.; Shemyakin, A. et al.
Object Type: Article
System: The UNT Digital Library
Technical Report on NETL's Non Newtonian Multiphase Slurry Workshop: A path forward to understanding non-Newtonian multiphase slurry flows (open access)

Technical Report on NETL's Non Newtonian Multiphase Slurry Workshop: A path forward to understanding non-Newtonian multiphase slurry flows

The Department of Energy’s (DOE) National Energy Technology Laboratory (NETL) sponsored a workshop on non-Newtonian multiphase slurry at NETL’s Morgantown campus August 19 and 20, 2013. The objective of this special two-day meeting of 20-30 invited experts from industry, National Labs and academia was to identify and address technical issues associated with handling non-Newtonian multiphase slurries across various facilities managed by DOE. Particular emphasis during this workshop was placed on applications managed by the Office of Environmental Management (EM). The workshop was preceded by two webinars wherein personnel from ORP and NETL provided background information on the Hanford WTP project and discussed the critical design challenges facing this project. In non-Newtonian fluids, viscosity is not constant and exhibits a complex dependence on applied shear stress or deformation. Many applications under EM’s tank farm mission involve non-Newtonian slurries that are multiphase in nature; tank farm storage and handling, slurry transport, and mixing all involve multiphase flow dynamics, which require an improved understanding of the mechanisms responsible for rheological changes in non-Newtonian multiphase slurries (NNMS). To discuss the issues in predicting the behavior of NNMS, the workshop focused on two topic areas: (1) State-of-the-art in non-Newtonian Multiphase Slurry Flow, and (2) Scaling …
Date: August 19, 2013
Creator: Guenther, Chris & Garg, Rahul
Object Type: Report
System: The UNT Digital Library
The Effective Number Density of Galaxies for Weak Lensing Measurements in the LSST Project (open access)

The Effective Number Density of Galaxies for Weak Lensing Measurements in the LSST Project

None
Date: July 19, 2013
Creator: Chang, C.; /KIPAC, Menlo Park; Jarvis, M.; Jain, B.; U., /Pennsylvania; Kahn, S.M. et al.
Object Type: Report
System: The UNT Digital Library
National Computational Infrastructure for Lattice Gauge Theory SciDAC-2 Closeout Report (open access)

National Computational Infrastructure for Lattice Gauge Theory SciDAC-2 Closeout Report

Under its SciDAC-1 and SciDAC-2 grants, the USQCD Collaboration developed software and algorithmic infrastructure for the numerical study of lattice gauge theories.
Date: July 19, 2013
Creator: Mackenzie, Paul; Brower, Richard; Karsch, Frithjof; Christ, Norman; Gottlieb, Steven; Negele, John et al.
Object Type: Report
System: The UNT Digital Library
Steam Oxidation at High Pressure (open access)

Steam Oxidation at High Pressure

A first high pressure test was completed: 293 hr at 267 bar and 670{degrees}C; A parallel 1 bar test was done for comparison; Mass gains were higher for all alloys at 267 bar than at 1 bar; Longer term exposures, over a range of temperatures and pressures, are planned to provide information as to the commercial implications of pressure effects; The planned tests are at a higher combination of temperatures and pressures than in the existing literature. A comparison was made with longer-term literature data: The short term exposures are largely consistent with the longer-term corrosion literature; Ferritic steels--no consistent pressure effect; Austenitic steels--fine grain alloys less able to maintain protective chromia scale as pressure increases; Ni-base alloys--more mass gains above 105 bar than below. Not based on many data points.
Date: July 19, 2013
Creator: Holcomb, Gordon R. & Carney, Casey
Object Type: Article
System: The UNT Digital Library
Applications of Geothermally-Produced Colloidal Silica in Reservoir Management - Smart Gels (open access)

Applications of Geothermally-Produced Colloidal Silica in Reservoir Management - Smart Gels

None
Date: June 19, 2013
Creator: Hunt, J D; Ezzedine, S M; Bourcier, W & Roberts, S
Object Type: Report
System: The UNT Digital Library
CANE FIBERBOARD DEGRADATION WITHIN THE 9975 SHIPPING PACKAGE DURING LONG-TERM STORAGE APPLICATION (open access)

CANE FIBERBOARD DEGRADATION WITHIN THE 9975 SHIPPING PACKAGE DURING LONG-TERM STORAGE APPLICATION

The 9975 shipping package is used as part of the configuration for long-term storage of special nuclear materials in the K Area Complex at the Savannah River Site. The cane fiberboard overpack in the 9975 package provides thermal insulation, impact absorption and criticality control functions relevant to this application. The Savannah River National Laboratory has conducted physical, mechanical and thermal tests on aged fiberboard samples to identify degradation rates and support the development of aging models and service life predictions in a storage environment. This paper reviews the data generated to date, and preliminary models describing degradation rates of cane fiberboard in elevated temperature – elevated humidity environments.
Date: June 19, 2013
Creator: Daugherty, W.; Dunn, K. & Hackney, B.
Object Type: Article
System: The UNT Digital Library
Computational Mechanics Research and Support for Aerodynamics and Hydraulics at TFHRC, Year 3 Quarter 1 Progress Report (open access)

Computational Mechanics Research and Support for Aerodynamics and Hydraulics at TFHRC, Year 3 Quarter 1 Progress Report

None
Date: June 19, 2013
Creator: Lottes, S.A. & Bojanowski, C.
Object Type: Report
System: The UNT Digital Library
Computer Simulations to Study the Effects of Explosive and Confinement Properties on the Deflagration-to-Detonation Transition (DDT) (open access)

Computer Simulations to Study the Effects of Explosive and Confinement Properties on the Deflagration-to-Detonation Transition (DDT)

None
Date: June 19, 2013
Creator: Reaugh, J E; Curtis, J P & Maheswaran, M A
Object Type: Article
System: The UNT Digital Library
Economic Impact of Fuel Cell Deployment in Forklifts and for Backup Power under the American Recovery and Reinvestment Act (open access)

Economic Impact of Fuel Cell Deployment in Forklifts and for Backup Power under the American Recovery and Reinvestment Act

None
Date: June 19, 2013
Creator: Mintz, M.; Mertes, C. & Stewart, E.
Object Type: Report
System: The UNT Digital Library
ELUCIDATING THE DIFFERENCES BETWEEN ONSITE AND OFFSITE SHIPMENT OF RADIOACTIVE MATERIALS (open access)

ELUCIDATING THE DIFFERENCES BETWEEN ONSITE AND OFFSITE SHIPMENT OF RADIOACTIVE MATERIALS

Federal regulations stipulate how radioactive materials are transported within the United States. However, the Department of Energy, under Department of Energy Order, has the authority to operate, within the boundaries of their physical site, to other stipulations. In many cases the DOE sites have internal reviews for onsite transfers that rival reviews performed by the regulatory authorities for offsite shipments. Most of the differences are in the level or type of packaging that is required, but in some cases it may be in the amount and type of material that is allowed to be transferred. This paper will describe and discuss those differences and it will discuss ways to effectively align the onsite rules for transferring materials with those for offsite shipment.
Date: June 19, 2013
Creator: Loftin, B. & Watkins, R.
Object Type: Article
System: The UNT Digital Library
Triangularity Dependence of BOUT++ Nonlinear ELM Simulation Validation by DIII-D Fast Measurements (open access)

Triangularity Dependence of BOUT++ Nonlinear ELM Simulation Validation by DIII-D Fast Measurements

None
Date: June 19, 2013
Creator: Xu, X. Q.; Xia, T. Y.; Rognlien, T. D.; Umansky, M.; Joseph, I.; Lasnier, C. J. et al.
Object Type: Article
System: The UNT Digital Library
Modularity and adaptability (open access)

Modularity and adaptability

None
Date: April 19, 2013
Creator: Banks, J W
Object Type: Report
System: The UNT Digital Library
Nuclear Physics from Lattice QCD (open access)

Nuclear Physics from Lattice QCD

This is the final report for this project.
Date: April 19, 2013
Creator: Orginos, Konstantinos
Object Type: Report
System: The UNT Digital Library
REGULATION OF CARBON SEQUESTRATION AND WATER USE IN A OZARK FOREST: PROPOSING A NEW STRATEGICALLY LOCATED AMERIFLUX TOWER SITE IN MISSOURI (open access)

REGULATION OF CARBON SEQUESTRATION AND WATER USE IN A OZARK FOREST: PROPOSING A NEW STRATEGICALLY LOCATED AMERIFLUX TOWER SITE IN MISSOURI

by June 14, 2004, the MOFLUX site was fully instrumented and data streams started to flow. A primary accomplished deliverable for the project period was the data streams of CO{sub 2} and water vapor fluxes and numerous meteorological variables (from which prepared datasets have been submitted to the AmeriFlux data archive for 2004-2006, Additionally, measurements of leaf biochemistry and physiology, biomass inventory, tree allometry, successional trends other variables were obtained.
Date: April 19, 2013
Creator: Pallardy, Stephen G
Object Type: Report
System: The UNT Digital Library
Aerodynamic drag reduction of class 8 heavy vehicles: a full-scale wind tunnel study (open access)

Aerodynamic drag reduction of class 8 heavy vehicles: a full-scale wind tunnel study

None
Date: March 19, 2013
Creator: Ortega, J.; Salari, K.; Brown, A. & Schoon, R.
Object Type: Report
System: The UNT Digital Library
Automation of The Guiding Center Expansion (open access)

Automation of The Guiding Center Expansion

We report on the use of the recently-developed Mathematica package VEST (Vector Einstein Summation Tools) to automatically derive the guiding center transformation. Our Mathematica code employs a recursive procedure to derive the transformation order-by-order. This procedure has several novel features. (1) It is designed to allow the user to easily explore the guiding center transformation's numerous nonunique forms or representations. (2) The procedure proceeds entirely in cartesian position and velocity coordinates, thereby producing manifestly gyrogauge invariant results; the commonly-used perpendicular unit vector fields e1, e2 are never even introduced. (3) It is easy to apply in the derivation of higher-order contributions to the guiding center transformation without fear of human error. Our code therefore stands as a useful tool for exploring subtle issues related to the physics of toroidal momentum conservation in tokamaks
Date: March 19, 2013
Creator: Burby, J. W.; Squire, J. & Qin, H.
Object Type: Report
System: The UNT Digital Library
Confronting Tracker Field Quintessence with Data (open access)

Confronting Tracker Field Quintessence with Data

None
Date: March 19, 2013
Creator: Wang, Pao-Yu; /Taiwan, Natl. Taiwan U.; Chen, Chien-Wen; /NCTS, Taipei; Chen, Pisin & /KIPAC, Menlo Park /Taiwan, Natl. Taiwan U.
Object Type: Article
System: The UNT Digital Library
Constraints on Dark Matter Models From a Fermi LAT Search for High-Energy Cosmic-Ray Electrons from the Sun (open access)

Constraints on Dark Matter Models From a Fermi LAT Search for High-Energy Cosmic-Ray Electrons from the Sun

None
Date: March 19, 2013
Creator: Ajello, M.; Atwood, W. B.; Baldini, L.; Barbiellini, G.; Bastieri, D.; Bellazzini, R. et al.
Object Type: Article
System: The UNT Digital Library
Degradation Of Cementitious Materials Associated With Saltstone Disposal Units (open access)

Degradation Of Cementitious Materials Associated With Saltstone Disposal Units

The Saltstone facilities at the DOE Savannah River Site (SRS) stabilize and dispose of low-level radioactive salt solution originating from liquid waste storage tanks at the site. The Saltstone Production Facility (SPF) receives treated salt solution and mixes the aqueous waste with dry cement, blast furnace slag, and fly ash to form a grout slurry which is mechanically pumped into concrete disposal cells that compose the Saltstone Disposal Facility (SDF). The solidified grout is termed “saltstone”. Cementitious materials play a prominent role in the design and long-term performance of the SDF. The saltstone grout exhibits low permeability and diffusivity, and thus represents a physical barrier to waste release. The waste form is also reducing, which creates a chemical barrier to waste release for certain key radionuclides, notably Tc-99. Similarly, the concrete shell of an SDF disposal unit (SDU) represents an additional physical and chemical barrier to radionuclide release to the environment. Together the waste form and the SDU compose a robust containment structure at the time of facility closure. However, the physical and chemical state of cementitious materials will evolve over time through a variety of phenomena, leading to degraded barrier performance over Performance Assessment (PA) timescales of thousands to …
Date: March 19, 2013
Creator: Flach, G. P. & Smith, F. G., III
Object Type: Report
System: The UNT Digital Library