Serial/Series Title
Evaluation of the Emission, Transport, and Deposition of Mercury, Fine Particulate Matter, and Arsenic From Coal-Based Power Plants in the Ohio River Valley Region Progress Report
4
Fiscal Year 2000
4
ARM Facilities Newsletter
2
Fiscal Year 2002
2
Fiscal Year 2003
2
Fiscal Year 2004
2
Fiscal Year 2005
2
Winter Fuels Report
2
Carbon Sequestration on Surface Mine Lands Quarterly Report
1
Development fo Novel Boron-based Multilayer Thin-Film Progress Report
1
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FY10 Report on Multi-scale Simulation of Solvent Extraction Processes: Molecular-scale and Continuum-scale Studies
None
Date:
February 2, 2014
Creator:
Wardle, K.E.; Frey, K. & Pereira, C. (Chemical Sciences and Engineering Division)
Object Type:
Report
System:
The UNT Digital Library
Self-organisation Processes In The Carbon ARC For Nanosynthis
The atmospheric pressure carbon arc in inert gases such as helium is an important method for the production of nanomaterials. It has recently been shown that the formation of the carbon deposit on the cathode from gaseous carbon plays a crucial role in the operation of the arc, reaching the high temperatures necessary for thermionic emission to take place even with low melting point cathodes. Based on observed ablation and deposition rates, we explore the implications of deposit formation on the energy balance at the cathode surface, and show how the operation of the arc is self-organised process. Our results suggest that the can arc operate in two di erent regimes, one of which has an important contribution from latent heat to the cathode energy balance. This regime is characterised by the enhanced ablation rate, which may be favourable for high yield synthesis of nanomaterials. The second regime has a small and approximately constant ablation rate with a negligible contribution from latent heat.
Date:
February 2, 2014
Creator:
Ng, J. & Raitses, Yefgeny
Object Type:
Report
System:
The UNT Digital Library
B341 Seismic Evaluation
None
Date:
January 2, 2014
Creator:
Halle, J
Object Type:
Report
System:
The UNT Digital Library
Results Of Routine Strip Effluent Hold Tank, Decontaminated Salt Solution Hold Tank, Caustic Wash Tank And Caustic Storage Tank Samples From Modular Caustic-Side Solvent Extraction Unit During Macrobatch 6 Operations
Strip Effluent Hold Tank (SEHT), Decontaminated Salt Solution Hold Tank (DSSHT), Caustic Wash Tank (CWT) and Caustic Storage Tank (CST) samples from the Interim Salt Disposition Project (ISDP) Salt Batch (“Macrobatch”) 6 have been analyzed for 238Pu, 90Sr, 137Cs, and by Inductively Coupled Plasma Emission Spectroscopy (ICPES). The Pu, Sr, and Cs results from the current Macrobatch 6 samples are similar to those from comparable samples in previous Macrobatch 5. In addition the SEHT and DSSHT heel samples (i.e. ‘preliminary’) have been analyzed and reported to meet NGS Demonstration Plan requirements. From a bulk chemical point of view, the ICPES results do not vary considerably between this and the previous samples. The titanium results in the DSSHT samples continue to indicate the presence of Ti, when the feed material does not have detectable levels. This most likely indicates that leaching of Ti from MST has increased in ARP at the higher free hydroxide concentrations in the current feed.
Date:
January 2, 2014
Creator:
Peters, T. B.
Object Type:
Report
System:
The UNT Digital Library
The ATLAS B-Jet Trigger
None
Date:
December 2, 2013
Creator:
Hansson Adrian, Per Ola
Object Type:
Article
System:
The UNT Digital Library
Diagnosing New Physics in $B \to C \, \tau \, \nu_\tau$ Decays in the Light of the Recent BaBar Result
None
Date:
December 2, 2013
Creator:
Datta, Alakabha; Duraisamy, Murugeswaran & Ghosh, Diptimoy
Object Type:
Article
System:
The UNT Digital Library
Hanford Double-Shell Tank Inspection Annual Report Calendar Year 2012
The double-shell tanks (DSTs) were constructed between 1968 and 1986. They will have exceeded their design life before the waste can be removed and trasferred to the Waste Treatment and Immobilization Plant for vitrification. The Double-Shell Tank Integrity Project has been established to evaluate tank aging, and ensure that each tank is structurally sound for continued use. This is the first issue of the Double-Shell Tank Inspection Annual Report. The purpose of this issue is to summarize the results of DST inspections conducted from the beginnng of the inspection program through the end of CY2012. Hereafter, the report will be updated annually with summaries of the past year's DST inspection activities.
Date:
December 2, 2013
Creator:
Petermann, Tasha M.; Boomer, Kayle D. & Washenfelder, D. J.
Object Type:
Report
System:
The UNT Digital Library
Hanford Single-Shell Tank Leak Causes and Locations - 241-U Farm
This document identifies 241-U Tank Farm (U Farm) leak causes and locations for the 100 series leaking tanks (241-U-104, 241-U-110, and 241-U-112) identified in RPP-RPT-50097, Rev. 0, Hanford 241-U Farm Leak Inventory Assessment Report. This document satisfies the U-Farm portion of the target (T04) in the Hanford Federal Facility Agreement and Consent Order milestone M-045-91F.
Date:
December 2, 2013
Creator:
Girardot, Crystal L. & Harlow, Donald G.
Object Type:
Report
System:
The UNT Digital Library
A High Luminosity e+ e- Collider to Study the Higgs Boson
None
Date:
December 2, 2013
Creator:
Blondel, A.; Koratzinos, M.; Assmann, R. W.; Butterworth, A.; Janot, P.; Jimenez, J. M. et al.
Object Type:
Article
System:
The UNT Digital Library
Predictive Engineering Tools for Injection-Molded Long-Carbon-Fiber Thermoplastic Composites - FY13 Fourth Quarterly Report
This quarterly report summarizes the status of the project planning to obtain all the approvals required for a Cooperative Research and Development Agreement (CRADA) with Autodesk, Inc., Toyota Motor Engineering and Manufacturing North America (Toyota), and Magna Exterior and Interiors Corporation (Magna). The final CRADA documents processed by PNNL’s Legal Services were submitted to all the parties for signatures.
Date:
December 2, 2013
Creator:
Nguyen, Ba Nghiep & Simmons, Kevin L.
Object Type:
Report
System:
The UNT Digital Library
Search for New Physics at {\surd}s = 7 TeV in Hadronic Final States with Missing Transverse Energy and Heavy Flavor
None
Date:
December 2, 2013
Creator:
Butler, Bart
Object Type:
Article
System:
The UNT Digital Library
Stability of an Embedded Mesh Method for Coupling Lagrangian and ALE Finite Element Models
None
Date:
December 2, 2013
Creator:
Puso, M. A.; Kokko, E. J.; Liu, B. T. & Simpkins, B.
Object Type:
Article
System:
The UNT Digital Library
3D Simulations of Multipacting in the 56 MHz SRF Cavity
This report addresses the 56 MHz SRF Quarter-Wave Resonator (QWR) is designed for RHIC as a storage cavity to improve the collider performance.
Date:
October 2, 2013
Creator:
Wu, Q.; Belomestnykh, S. A.; Ge, L.; Ko, C.; Li, Z.; Ng, C. K. et al.
Object Type:
Article
System:
The UNT Digital Library
Betatron Modulation of Microwave Instability in Small Isochronous Ring
None
Date:
October 2, 2013
Creator:
Li, Yingjie & Wang, Lanfa
Object Type:
Article
System:
The UNT Digital Library
Cast Stone Formulation At Higher Sodium Concentrations
A low temperature waste form known as Cast Stone is being considered to provide supplemental Low Activity Waste (LAW) immobilization capacity for the Hanford site. Formulation of Cast Stone at high sodium concentrations is of interest since a significant reduction in the necessary volume of Cast Stone and subsequent disposal costs could be achieved if an acceptable waste form can be produced with a high sodium molarity salt solution combined with a high water to premix (or dry blend) ratio. The objectives of this study were to evaluate the factors involved with increasing the sodium concentration in Cast Stone, including production and performance properties and the retention and release of specific components of interest. Three factors were identified for the experimental matrix: the concentration of sodium in the simulated salt solution, the water to premix ratio, and the blast furnace slag portion of the premix. The salt solution simulants used in this study were formulated to represent the overall average waste composition. The cement, blast furnace slag, and fly ash were sourced from a supplier in the Hanford area in order to be representative. The test mixes were prepared in the laboratory and fresh properties were measured. Fresh density increased …
Date:
October 2, 2013
Creator:
Fox, K. M.; Edwards, T. A. & Roberts, K. B.
Object Type:
Report
System:
The UNT Digital Library
DEVELOPMENT OF GLASS AND GLASS CERAMIC PROPPANTS FROM GAS SHALE WELL DRILL CUTTINGS
The objective of this study was to develop a method of converting drill cuttings from gas shale wells into high strength proppants via flame spheroidization and devitrification processing. Conversion of drill cuttings to spherical particles was only possible for small particle sizes (< 53 {micro}m) using a flame former after a homogenizing melting step. This size limitation is likely to be impractical for application as conventional proppants due to particle packing characteristics. In an attempt to overcome the particle size limitation, sodium and calcium were added to the drill cuttings to act as fluxes during the spheroidization process. However, the flame former remained unable to form spheres from the fluxed material at the relatively large diameters (0.5 - 2 mm) targeted for proppants. For future work, the flame former could be modified to operate at higher temperature or longer residence time in order to produce larger, spherical materials. Post spheroidization heat treatments should be investigated to tailor the final phase assemblage for high strength and sufficient chemical durability.
Date:
October 2, 2013
Creator:
Johnson, F. & Fox, K.
Object Type:
Report
System:
The UNT Digital Library
Final Technical Report: "New Tools for Physics with Low-energy Antimatter"
The objective of this research is to develop new tools to manipulate antimatter plasmas and to tailor them for specific scientific and technical uses. The work has two specific objectives. One is establishing the limits for positron accumulation and confinement in the form of single-component plasmas in Penning-Malmberg traps. This technique underpins a wealth of antimatter applications. A second objective is to develop an understanding of the limits for formation of cold, bright positron beams. The research done in this grant focused on particular facets of these goals. One focus was extracting tailored beams from a high-field Penning-Malmberg trap from the magnetic field to form new kinds of high-quality electrostatic beams. A second goal was to develop the technology for colder trap-based beams using a cryogenically cooled buffer gas. A third objective was to conduct the basic plasma research to develop a new high-capacity multicell trap (MCT) for research with antimatter. Progress is reported here in all three areas. While the goal of this research is to develop new tools for manipulating positrons (i.e., the antiparticles of electrons), much of the work was done with test electron plasmas for increased data rate. Some of the techniques developed in the course …
Date:
October 2, 2013
Creator:
Surko, Clifford M.
Object Type:
Report
System:
The UNT Digital Library
IN-LINE CHEMICAL SENSOR DEPLOYMENT IN A TRITIUM PLANT
The Savannah River Tritium Plant (TP) relies on well understood but aging sensor technology for process gas analysis. Though new sensor technologies have been brought to various readiness levels, the TP has been reluctant to install technologies that have not been tested in tritium service. This gap between sensor technology development and incorporating new technologies into practical applications demonstrates fundamental challenges that exist when transitioning from status quo to state-of-the-art in an extreme environment such as a tritium plant. These challenges stem from three root obstacles: 1) The need for a comprehensive assessment of process sensing needs and requirements; 2) The lack of a pick-list of process-compatible sensor technologies; and 3) The need to test technologies in a tritium-contaminated process environment without risking production. At Savannah River, these issues are being addressed in a two phase project. In the first phase, TP sensing requirements were determined by a team of process experts. Meanwhile, Savannah River National Laboratory sensor experts identified candidate technologies and related them to the TP processing requirements. The resulting roadmap links the candidate technologies to actual plant needs. To provide accurate assessments of how a candidate sensor technology would perform in a contaminated process environment, an instrument …
Date:
October 2, 2013
Creator:
Tovo, L.; Wright, J.; Torres, R. & Peters, B.
Object Type:
Article
System:
The UNT Digital Library
Longitudinal Profile Monitor Using Smith-Purcell Radiation: Recent Results from the E-203 Collaboration
None
Date:
October 2, 2013
Creator:
Delerue, N.; Barros, J.; Corre, S.Le; Grosjean, M.Vieille; Taheri, F.Bakkali; Bartolini, R. et al.
Object Type:
Article
System:
The UNT Digital Library
Machine History Viewer For The Integrated Computer Control System Of The National Ignition Facility*
None
Date:
October 2, 2013
Creator:
Wilson, R; Hoffman, J & Mauvais, J
Object Type:
Article
System:
The UNT Digital Library
The origin of mass. Update, October 2013.
None
Date:
October 2, 2013
Creator:
Boyle, P.; Buchoff, M.; Christ, N.; Izubuchi, T.; Jung, C.; Lin, Z. et al.
Object Type:
Article
System:
The UNT Digital Library
SHARP Assembly-Scale Multiphysics Demonstration Simulations.
None
Date:
October 2, 2013
Creator:
Tautges, T. J.; Fischer, P.; Grindeanu, I.; Jain, R.; Mahadevan, V.; Obabko, A. et al.
Object Type:
Report
System:
The UNT Digital Library
Using Cumulative Number Densities to Compare Galaxies Across Cosmic Time
None
Date:
October 2, 2013
Creator:
Behroozi, Peter; Marchesini, Danilo; Wechsler, Risa; Muzzin, Adam; Papovich, Casey & Stefanon, Mauro
Object Type:
Report
System:
The UNT Digital Library
Monte Carlo Simulation Tool Installation and Operation Guide
This document provides information on software and procedures for Monte Carlo simulations based on the Geant4 toolkit, the ROOT data analysis software and the CRY cosmic ray library. These tools have been chosen for its application to shield design and activation studies as part of the simulation task for the Majorana Collaboration. This document includes instructions for installation, operation and modification of the simulation code in a high cyber-security computing environment, such as the Pacific Northwest National Laboratory network. It is intended as a living document, and will be periodically updated. It is a starting point for information collection by an experimenter, and is not the definitive source. Users should consult with one of the authors for guidance on how to find the most current information for their needs.
Date:
September 2, 2013
Creator:
Aguayo Navarrete, Estanislao; Ankney, Austin S.; Berguson, Timothy J.; Kouzes, Richard T.; Orrell, John L.; Troy, Meredith D. et al.
Object Type:
Report
System:
The UNT Digital Library