Serial/Series Title
GRIDS Program
5
Hanford Works Monthly Report
3
Acoustical Imaging and Mechanical Properties of Soft Rock and Marine Sediments Progress Report
2
Single Electron Chemistry of Coals Progress Report
2
Winter Fuels Report
2
A Program of FRC Theory Research Annual Report
1
ARM Facilities Newsletter
1
Activities to Support Establishment of a Sea Floor Monitoring Station Project Progress Report
1
Ceramic Membranes for Hydrogen Production From Coal Annual Report
1
Development of ITM Oxygen Technology for Integration in IGCC & Other Advanced Power Generation Systems (ITM Oxygen) Progress Report
1
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Uranium Anodic Dissolution under Slightly Alkaline Conditions Progress Report Full-Scale Demonstration with DU Foil
None
Date:
February 18, 2014
Creator:
Gelis, A.; Brown, M.A.; Wiedmeyer, S. & Vandegrift, G.F. (Chemical Sciences and Engineering Division)
Object Type:
Report
System:
The UNT Digital Library
Analytical Results For MOX Colemanite Concrete Samples Received On November, 2013
The Mixed Oxide Fuel Fabrication Facility (MFFF) will use colemanite bearing concrete neutron absorber panels credited with attenuating neutron flux in the criticality design analyses and shielding operators from radiation. The Savannah River National Laboratory (SRNL) is tasked with measuring the total density, partial hydrogen density, and partial boron density of the colemanite concrete. SRNL received two samples of colemanite concrete for analysis on November 21, 2013. The average total density of each of the samples measured by the ASTM method C 642, the average partial hydrogen density was measured using method ASTM E 1131, and the average partial boron density of each sample was measured according to ASTM C 1301. For all the samples tested, the total density and the boron partial density met or exceeded the specified limit. None of the samples met the lower limit for hydrogen partial density.
Date:
December 18, 2013
Creator:
Reigel, Marissa M.
Object Type:
Report
System:
The UNT Digital Library
The BaBar Detector: Upgrades, Operation and Performance
None
Date:
December 18, 2013
Creator:
Aubert, Bernard
Object Type:
Article
System:
The UNT Digital Library
Benefits to the U.S. from Physicists Working at Accelerators Overseas
None
Date:
December 18, 2013
Creator:
Anderson, Jacob; Brock, Raymond; Gershtein, Yuri; Hadley, Nicholas; Harrison, Michael; Narain, Meenakshi et al.
Object Type:
Article
System:
The UNT Digital Library
DISCOLORATION OF THE WETTED SURFACE IN THE 6.1D DISSOLVER
During a camera inspection of a failed coil in the 6.1D dissolver, an orange discoloration was observed on a portion of the dissolver wall and coils. At the request of H-Canyon Engineering, the inspection video of the dissolver was reviewed by SRNL to assess if the observed condition (a non-uniform, orange-colored substance on internal surfaces) was a result of corrosion. Although the dissolver vessel and coil corrode during dissolution operations, the high acid conditions are not consistent with the formation of ferrous oxides (i.e., orange/rust-colored corrosion products). In a subsequent investigation, SRNL performed dissolution experiments to determine if residues from the nylon bags used for Pu containment could have generated the orange discoloration following dissolution. When small pieces of a nylon bag were placed in boiling 8 M nitric acid solutions containing other components representative of the H-Canyon process, complete dissolution occurred almost immediately. No residues were obtained even when a nylon mass to volume ratio greater than 100 times the 6.1D dissolver value was used. Degradation products from the dissolution of nylon bags are not responsible for the discoloration observed in the dissolver.
Date:
December 18, 2013
Creator:
Rudisill, T.; Mickalonis, J. & Crapse, K.
Object Type:
Report
System:
The UNT Digital Library
Documentation of the ISA Micro Computed Tomography System
None
Date:
December 18, 2013
Creator:
Brown, W D
Object Type:
Report
System:
The UNT Digital Library
Dynamics and Statistical Mechanics of Rotating and non-Rotating Vortical Flows
Three projects were analyzed with the overall aim of developing a computational/analytical model for estimating values of the energy, angular momentum, enstrophy and total variation of fluid height at phase transitions between disordered and self-organized flow states in planetary atmospheres. It is believed that these transitions in equilibrium statistical mechanics models play a role in the construction of large-scale, stable structures including super-rotation in the Venusian atmosphere and the formation of the Great Red Spot on Jupiter. Exact solutions of the spherical energy-enstrophy models for rotating planetary atmospheres by Kac's method of steepest descent predicted phase transitions to super-rotating solid-body flows at high energy to enstrophy ratio for all planetary spins and to sub-rotating modes if the planetary spin is large enough. These canonical statistical ensembles are well-defined for the long-range energy interactions that arise from 2D fluid flows on compact oriented manifolds such as the surface of the sphere and torus. This is because in Fourier space available through Hodge theory, the energy terms are exactly diagonalizable and hence has zero range, leading to well-defined heat baths.
Date:
December 18, 2013
Creator:
Lim, Chjan
Object Type:
Report
System:
The UNT Digital Library
Estimation of LHC and ILC Capabilities for Precision Higgs Boson Coupling Measurements
None
Date:
December 18, 2013
Creator:
Peskin, Michael E.
Object Type:
Article
System:
The UNT Digital Library
FERROELECTRIC SWITCH FOR A HIGH-POWER Ka-BAND ACTIVE PULSE COMPRESSOR
Results are presented for design of a high-power microwave switch for operation at 34.3 GHz, intended for use in an active RF pulse compressor. The active element in the switch is a ring of ferroelectric material, whose dielectric constant can be rapidly changed by application of a high-voltage pulse. As envisioned, two of these switches would be built into a pair of delay lines, as in SLED-II at SLAC, so as to allow 30-MW μs-length Ka-band pulses to be compressed in time by a factor-of-9 and multiplied in amplitude to generate 200 MW peak power pulses. Such high-power pulses could be used for testing and evaluation of high-gradient mm-wave accelerator structures, for example. Evaluation of the switch design was carried out with an X-band (11.43 GHz) prototype, built to incorporate all the features required for the Ka-band version.
Date:
December 18, 2013
Creator:
Hirshfield, Jay L.
Object Type:
Report
System:
The UNT Digital Library
Hierarchical Petascale Simulation Framework For Stress Corrosion Cracking
A number of major accomplishments resulted from the project. These include: • Data Structures, Algorithms, and Numerical Methods for Reactive Molecular Dynamics. We have developed a range of novel data structures, algorithms, and solvers (amortized ILU, Spike) for use with ReaxFF and charge equilibration. • Parallel Formulations of ReactiveMD (Purdue ReactiveMolecular Dynamics Package, PuReMD, PuReMD-GPU, and PG-PuReMD) for Messaging, GPU, and GPU Cluster Platforms. We have developed efficient serial, parallel (MPI), GPU (Cuda), and GPU Cluster (MPI/Cuda) implementations. Our implementations have been demonstrated to be significantly better than the state of the art, both in terms of performance and scalability. • Comprehensive Validation in the Context of Diverse Applications. We have demonstrated the use of our software in diverse systems, including silica-water, silicon-germanium nanorods, and as part of other projects, extended it to applications ranging from explosives (RDX) to lipid bilayers (biomembranes under oxidative stress). • Open Source Software Packages for Reactive Molecular Dynamics. All versions of our soft- ware have been released over the public domain. There are over 100 major research groups worldwide using our software. • Implementation into the Department of Energy LAMMPS Software Package. We have also integrated our software into the Department of Energy LAMMPS …
Date:
December 18, 2013
Creator:
Grama, Ananth
Object Type:
Report
System:
The UNT Digital Library
High Power S-Band Window Optimized to Minimize Electric and Magnetic Field on the Surface*
None
Date:
December 18, 2013
Creator:
Yeremian, Anahid D.; Dolgashev, Valery A. & Tantawi, Sami G.
Object Type:
Article
System:
The UNT Digital Library
Memo, "Incorporation of HLW Glass Shell V2.0 into the Flowsheets," to ED Lee, CCN: 184905, October 20, 2009
Efforts are being made to increase the efficiency and decrease the cost of vitrifying radioactive waste stored in tanks at the U.S. Department of Energy Hanford Site. The compositions of acceptable and processable high-level waste (HL W) glasses need to be optimized to minimize the waste-form volume and, hence, to reduce cost. A database of glass properties of waste glass and associated simulated waste glasses was collected and documented in PNNL 18501, Glass Property Data and Models for Estimating High-Level Waste Glass Volume and glass property models were curve-fitted to the glass compositions. A routine was developed that estimates HL W glass volumes using the following glass property models: II Nepheline, II One-Percent Crystal Temperature (T1%), II Viscosity (11) II Product Consistency Tests (PCT) for boron, sodium, and lithium, and II Liquidus Temperature (TL). The routine, commonly called the HL W Glass Shell, is presented in this document. In addition to the use of the glass property models, glass composition constraints and rules, as recommend in PNNL 18501 and in other documents (as referenced in this report) were incorporated. This new version of the HL W Glass Shell should generally estimate higher waste loading in the HL W glass than …
Date:
December 18, 2013
Creator:
Gimpel, Rodney F. & Kruger, Albert A.
Object Type:
Report
System:
The UNT Digital Library
One System Integreated Project Team Progress in Coordinating Hanford Tank Farms and the Waste Treatment Plant - 14214
The One System Integrated Project Team (IPT) was formed at the Hanford Site in late 2011 as a way to improve coordination and itegration between the Hanford Tank Waste Treatment and Immobilization Plant (WTP) and the Tank Operations Contractor (TOC) on interfaces between the two projects, and to eliminate duplication and exploit opportunities for synergy. The IPT is composed of jointly staffed groups that work on technical issues of mutal interest, front-end design and project definition, nuclear safety, plant engineering system integration, commissioning, planning and scheduling, and environmental, safety, health and quality (ESH&Q) areas. In the past year important progress has been made in a number of areas as the organization has matured and additional opportunities have been identified. Areas covered in this paper include: Support for development of the Office of Envirnmental Management (EM) framework document to progress the Office of River Protection's (ORP) River Protection Project (RPP) mission; Stewardship of the RPP flowsheet; Collaboration with Savannah River Site (SRS), Savannah River National Laboratory (SRNL), and Pacific Northwest National Laboratory (PNNL); Operations programs integration, and; Further development of the waste acceptance criteria.
Date:
December 18, 2013
Creator:
Skwarek, Raymond J.; Harp, Ben J. & Duncan, Garth M.
Object Type:
Article
System:
The UNT Digital Library
Prospects for Future Very High-Energy Gamma-Ray Sky Survey: Impact of Secondary Gamma Rays
None
Date:
December 18, 2013
Creator:
Inoue, Yoshiyuki; Kalashev, Oleg E. & Kusenko, Alexander
Object Type:
Article
System:
The UNT Digital Library
SciDAC Center for Gyrokinetic Particle Simulation of Turbulent Transport in Burning Plasmas
During the first year of the SciDAC gyrokinetic particle simulation (GPS) project, the GPS team (Zhihong Lin, Liu Chen, Yasutaro Nishimura, and Igor Holod) at the University of California, Irvine (UCI) studied the tokamak electron transport driven by electron temperature gradient (ETG) turbulence, and by trapped electron mode (TEM) turbulence and ion temperature gradient (ITG) turbulence with kinetic electron effects, extended our studies of ITG turbulence spreading to core-edge coupling. We have developed and optimized an elliptic solver using finite element method (FEM), which enables the implementation of advanced kinetic electron models (split-weight scheme and hybrid model) in the SciDAC GPS production code GTC. The GTC code has been ported and optimized on both scalar and vector parallel computer architectures, and is being transformed into objected-oriented style to facilitate collaborative code development. During this period, the UCI team members presented 11 invited talks at major national and international conferences, published 22 papers in peer-reviewed journals and 10 papers in conference proceedings. The UCI hosted the annual SciDAC Workshop on Plasma Turbulence sponsored by the GPS Center, 2005-2007. The workshop was attended by about fifties US and foreign researchers and financially sponsored several gradual students from MIT, Princeton University, Germany, Switzerland, …
Date:
December 18, 2013
Creator:
Lin, Zhihong
Object Type:
Report
System:
The UNT Digital Library
Simulink/PARS Integration Support
The state of the art for signal processor hardware has far out-paced the development tools for placing applications on that hardware. In addition, signal processors are available in a variety of architectures, each uniquely capable of handling specific types of signal processing efficiently. With these processors becoming smaller and demanding less power, it has become possible to group multiple processors, a heterogeneous set of processors, into single systems. Different portions of the desired problem set can be assigned to different processor types as appropriate. As software development tools do not keep pace with these processors, especially when multiple processors of different types are used, a method is needed to enable software code portability among multiple processors and multiple types of processors along with their respective software environments. Sundance DSP, Inc. has developed a software toolkit called “PARS”, whose objective is to provide a framework that uses suites of tools provided by different vendors, along with modeling tools and a real time operating system, to build an application that spans different processor types. The software language used to express the behavior of the system is a very high level modeling language, “Simulink”, a MathWorks product. ORNL has used this toolkit to …
Date:
December 18, 2013
Creator:
Vacaliuc, B. & Nakhaee, N.
Object Type:
Report
System:
The UNT Digital Library
TP83-MicroCT Data Acquisition, Reconstruction and Analysis Using the ISA MicroCT System
None
Date:
December 18, 2013
Creator:
Brown, W D
Object Type:
Report
System:
The UNT Digital Library
Analysis Of The Sludge Batch 7b (Macrobatch 9) DWPF Pour Stream Glass Sample
The Defense Waste Processing Facility (DWPF) began processing Sludge Batch 7b (SB7b), also referred to as Macrobatch 9 (MB9), in January 2012. SB7b is a blend of the heel of Tank 40 from Sludge Batch 7a (SB7a) and the SB7b material that was transferred to Tank 40 from Tank 51. SB7b was processed using Frit 418. During processing of each sludge batch, the DWPF is required to take at least one glass sample to meet the objectives of the Glass Product Control Program (GPCP), which is governed by the DWPF Waste Form Compliance Plan, and to complete the necessary Production Records so that the final glass product may be disposed of at a Federal Repository. Two pour stream glass samples were collected while processing SB7b. The samples were transferred to the Savannah River National Laboratory (SRNL) where one was analyzed and the other was archived. The following conclusions were drawn from the analytical results provided in this report: The sum of oxides for the official SB7b pour stream glass is within the Product Composition Control System (PCCS) limits (95-105 wt%); The average calculated Waste Dilution Factor (WDF) for SB7b is 2.3. In general, the measured radionuclide content of the official …
Date:
November 18, 2013
Creator:
Johnson, F. C.; Crawford, C. L. & Pareizs, J. M.
Object Type:
Report
System:
The UNT Digital Library
Noise Exposure Summary And Comparitive Analyses
None
Date:
November 18, 2013
Creator:
Bumala, P A
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Phase modulation in high power optical systems caused by pulsed laser-driven particle ablation events
None
Date:
November 18, 2013
Creator:
Matthews, M. J.; Shen, N. N.; Rubenchik, A. M.; Honig, J.. & Bude, J. D.
Object Type:
Article
System:
The UNT Digital Library
Summary Report For The Analysis Of The Sludge Batch 7b (Macrobatch 9) DWPF Pour Stream Glass Sample For Canister S04023
In order to comply with the Defense Waste Processing Facility (DWPF) Waste Form Compliance Plan for Sluldge Batch 7b, Savannah River National Laboratory (SRNL) personnel characterized the Defense Waste Processing Facility (DWPF) pour stream (PS) glass sample collected while filling canister S04023. This report summarizes the results of the compositional analysis for reportable oxides and radionuclides and the normalized Product Consistency Test (PCT) results. The PCT responses indicate that the DWPF produced glass that is significantly more durable than the Environmental Assessment glass.
Date:
November 18, 2013
Creator:
Johnson, F. C.
Object Type:
Report
System:
The UNT Digital Library
Technetium Removal Using Tc-Goethite Coprecipitation
This report describes the results from laboratory tests performed at Pacific Northwest National Laboratory for the U.S. Department of Energy (DOE) EM-31 Support Program (EMSP) subtask, “Low temperature waste forms coupled with technetium removal using an alternative immobilization process such as Fe(II) treated-goethite precipitation” to increase our understanding of 99Tc long-term stability in goethite mineral form and the process that controls the 99Tc(VII) reduction and removal by the final Fe (oxy)hydroxide forms. The overall objectives of this task were to 1) evaluate the transformation process of Fe (oxy)hydroxide solids to the more crystalline goethite (α-FeOOH) mineral for 99Tc removal and 2) determine the mechanism that limits 99Tc(IV) reoxidation in Fe(II)-treated 99Tc-goethite mineral and 3) evaluate whether there is a long-term 99Tcoxidation state change for Tc sequestered in the iron solids.
Date:
November 18, 2013
Creator:
Um, Wooyong; Wang, Guohui; Jung, Hun Bok & Peterson, Reid A.
Object Type:
Report
System:
The UNT Digital Library
A 4.2 GS/S Synchronized Vertical Excitation System for SPS Studies - Steps Toward Wideband Feedback
None
Date:
October 18, 2013
Creator:
Fox, J. D.; Olsen, J.; Rivetta, C.; Rivetta, I.; Turgut, O.; Uemura, S. et al.
Object Type:
Article
System:
The UNT Digital Library
Analysis of Benefits of an Energy Imbalance Market in the NWPP
The Northwest Power Pool (NWPP) Market Assessment Committee (MC) Initiative, which was officially launched on March 19, 2012, set out to explore a range of alternatives that could help the Balancing Authorities and scheduling utilities in the NWPP area address growing operational and commercial challenges affecting the regional power system. The MC formed an Analytical Team with technical representatives from each of the member Balancing Areas in the NWPP and with staff of Pacific Northwest National Laboratory (PNNL). This Analytical Team was instructed to conduct extensive studies of intra-hour operation of the NWPP system in the year 2020 and of the NWPP region with 14,671 MW of wind penetration. The effort utilized a sub-hourly production cost model (the PLEXOS® computer model) that inputs data from the Western Electricity Coordinating Council (WECC)-wide Production Cost Model (PCM) to evaluate potential production cost savings. The Analytical Team was given two general options to evaluate: •Energy Imbalance Market (EIM): establishment of an automated, organized NWPP area market for economically supplying energy imbalance within the hour. •Enhanced Market-Operational Tools (EMT) that might augment or replace an EIM. The Analytical The Analytical Team built on the WECC-wide PCM data from prior work done in the WECC …
Date:
October 18, 2013
Creator:
Samaan, Nader A.; Bayless, Rich; Symonds, Mark; Nguyen, Tony B.; Jin, Chunlian; Wu, Di et al.
Object Type:
Report
System:
The UNT Digital Library