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SciDAC Visualization and Analytics Center for EnablingTechnology

The SciDAC2 Visualization and Analytics Center for EnablingTechnologies (VACET) began operation on 10/1/2006. This document, dated11/27/2006, is the first version of the VACET project management plan. Itwas requested by and delivered to ASCR/DOE. It outlines the Center'saccomplishments in the first six weeks of operation along with broadobjectives for the upcoming future (12-24 months).

Date: November 28, 2006

Creator: Bethel, E. Wes; Johnson, Chris; Joy, Ken; Ahern, Sean; Pascucci,Valerio; Childs, Hank et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Seeing the Unseeable

The SciDAC Visualization and Analytics Center for Enabling Technologies (VACET) isa highly productive effort combining the forces of leading visualization researchersfrom five different institutions to solve some of the most challenging dataunderstanding problems in modern science. The VACET technology portfolio isdiverse, spanning all typical visual data analysis use models and effectivelybalancing forward-looking research with focused software architecture andengineering resulting in a produc… more

Date: May 30, 2008

Creator: Bethel, Edward W; Bethel, E. Wes; Johnson, Chris; Hansen, Charles; Silva, Claudio; Parker, Steven et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Visual Data Exploration and Analysis - Report of the VisualizationBreakout Session at the 2003 SCaLeS Workshop - Volume II

This document is the report from the Visualization breakoutsession at the SCaLeS (Science Case for Large-scale Simulation) workshopheld in 2003 in Bethesda, MD. The document presents current researchchallenges in visualization of large-scale scientific data.

Date: January 12, 2004

Creator: Bethel, W, E.; Frank, R.; Fulcomer, S.; Hansen, C.; Joy, K.; Kohl, J. et al.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Visual Data Exploration and Analysis -- Report of theVisualization Breakout Session at the 2003 SCaLeS Workshop - VolumeII

This article describes the role of scientific visualizationin computational and experimental sciences with emphasis upon futureresearch challenges.

Date: January 12, 2004

Creator: Bethel, W.; Frank, R.; Fulcomer, S.; Hansen, C.; Joy, k.; Kohl, J. et al.

Item Type: Book

Partner: UNT Libraries Government Documents Department

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VACET: Proposed SciDAC2 Visualization and Analytics Center forEnabling Technologies

This paper accompanies a poster that is being presented atthe SciDAC 2006 meeting in Denver, CO. This project focuses on leveragingscientific visualization and analytics software technology as an enablingtechnology for increasing scientific productivity and insight. Advancesincomputational technology have resultedin an "information big bang,"which in turn has createda significant data understanding challenge. Thischallenge is widely acknowledged to be one of the primary bottlenecks incontempora… more

Date: June 19, 2006

Creator: Bethel, W.; Johnson, Chris; Hansen, Charles; Parker, Steve; Sanderson, Allen; Silva, Claudio et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Phenomenological aspects of heterotic orbifold models at one loop

We provide a detailed study of the phenomenology of orbifold compactifications of the heterotic string within the context of supergravity effective theories. Our investigation focuses on those models where the soft Lagrangian is dominated by loop contributions to the various soft supersymmetry breaking parameters. Such models typically predict non-universal soft masses and are thus significantly different from minimal supergravity and other universal models. We consider the pattern of masses th… more

Date: August 5, 2003

Creator: Birkedal-Hansen, A.; Binetruy, P.; Mambrini, Y. & Nelson, B.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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rSUGRA: Putting Nonuniversal Gaugino Masses on the (W)MAP

In this talk, we investigate the relic density and direct detection prospects of rSUGRA, a simple paradigm for supersymmetry breaking that allows for nonuniversal gaugino masses. We present updated plots reflecting the latest cosmological measurements from WMAP.

Date: June 17, 2003

Creator: Birkedal-Hansen, Andreas

Item Type: Article

Partner: UNT Libraries Government Documents Department

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SUSY dark matter and non-universal gaugino masses

In this talk the authors investigate the dark matter prospects for supersymmetric models with non-universal gaugino masses. They motivate the use of non-universal gaugino masses from several directions, including problems, with the current favorite scenario, the cMSSM. They then display new corridors of parameter space that allow an acceptable dark matter relic density once gaugino mass universality is relaxed. They finish with a specific string-derived model that allows this universality relax… more

Date: April 15, 2002

Creator: Birkedal-Hansen, Andreas

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Scalar Dark Matter From Theory Space

The scalar dark matter candidate in a prototypical theory space little Higgs model is investigated. We review all details of the model pertinent to a relic density calculation. We perform a thermal relic density calculation including couplings to the gauge and Higgs sectors of the model. We find two regions of parameter space that give acceptable dark matter abundances. The first region has a dark matter candidate with a mass {Omicron}(100 GeV), the second region has a candidate with a mass gre… more

Date: December 26, 2003

Creator: Birkedal-Hansen, Andreas & Wacker, Jay G.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Public Consultation in Public Policy Information: A State-of-the-Art Report

The purpose of the National Waste Terminal Storage (NWTS) Program is to site, construct and operate nuclear waste repositories at several locations. Recent experience indicates that the public is aware of the problems of nuclear waste disposal, and correspondingly there is public concern about how and where to dispose of nuclear wastes. The selection of sites involves a wide range of considerations including geological, technical and environmental feasibility. In addition to these, it is import… more

Date: January 1, 1977

Creator: Bishop, A. B.; McKee, M. & Hansen, R. D.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Scaling of X pinches from 1 MA to 6 MA.

This final report for Project 117863 summarizes progress made toward understanding how X-pinch load designs scale to high currents. The X-pinch load geometry was conceived in 1982 as a method to study the formation and properties of bright x-ray spots in z-pinch plasmas. X-pinch plasmas driven by 0.2 MA currents were found to have source sizes of 1 micron, temperatures >1 keV, lifetimes of 10-100 ps, and densities >0.1 times solid density. These conditions are believed to result from the … more

Date: September 1, 2010

Creator: Bland, Simon Nicholas (Imperial College, London, United Kingdom); McBride, Ryan D.; Wenger, David Franklin; Sinars, Daniel Brian; Chittenden, Jeremy Paul (imperial College, London, United Kingdom); Pikuz, Sergei A. (Cornell University, Ithaca, NY) et al.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Improved Pinhole-Apertured Point-Projection Backlighter Geometry

Pinhole-apertured point-projection x-ray radiography is an important diagnostic technique for obtaining high resolution, high contrast, and large field-of-view images used to diagnose the hydrodynamic evolution of high energy density experiments. In this technique, a pinhole aperture is placed between a laser irradiated foil (x-ray source) and an imaging detector. In this letter, we present an improved backlighter geometry that utilizes a tilted pinhole for debris mitigation and a front-side il… more

Date: April 13, 2004

Creator: Blue, B.; Robey, H. F. & Hansen, J. F.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Dose Modeling Evaluations and Technical Support Document for the Authorized Limits Request for the C-746-U Landfill at the Paducah Gaseous Diffusion Plant, Paducah, Kentucky

This report contains the technical basis in support of the DOE?s derivation of Authorized Limits (ALs) for the DOE Paducah C-746-U Landfill. A complete description of the methodology, including an assessment of the input parameters, model inputs, and results is provided in this report. This report also provides initial recommendations on applying the derived soil guidelines. The ORISE-derived soil guidelines are specifically applicable to the Landfill at the end of its operational life. A sugge… more

Date: June 1, 2012

Creator: Boerner, A. J.; Maldonado, D. G. & Hansen, Tom

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Dose Modeling Evaluations and Technical Support Document For the Authorized Limits Request for the DOE-Owned Property Outside the Limited Area, Paducah Gaseous Diffusion Plant Paducah, Kentucky

Environmental assessments and remediation activities are being conducted by the U.S. Department of Energy (DOE) at the Paducah Gaseous Diffusion Plant (PGDP), Paducah, Kentucky. The Oak Ridge Institute for Science and Education (ORISE), a DOE prime contractor, was contracted by the DOE Portsmouth/Paducah Project Office (DOE-PPPO) to conduct radiation dose modeling analyses and derive single radionuclide soil guidelines (soil guidelines) in support of the derivation of Authorized Limits (ALs) fo… more

Date: September 1, 2012

Creator: Boerner, A. J.; Maldonado, D. G. & Hansen, Tom

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Study of the charge radii of the stable lead isotopes

Isotope shifts have been measured of the K/sub ..cap alpha..l/ x-ray lines emitted after photo ionization of /sup 204/Pb, /sup 206/Pb, /sup 207/Pb and /sup 208/Pb samples. The results are compared with theoretical values for delta < r/sup 2/> calculated with a microscopic model. The x-ray shift data are also compared with optical data and the nuclear parameters lambda derived from electron scattering results.

Date: January 1, 1982

Creator: Borchert, G.L.; Schult, O.W.B.; Speth, J.; Hansen, P.G.; Jonson, B.; Ravn, H. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Measurements and modeling of gamma absorbed doses due to releases from a linear proton accelerator: experimental design and preliminary results

External radiation levels due to positron annihilation radiation from /sup 11/C, /sup 13/N, and /sup 15/O released by the 800 MeV linear proton accelerator at the Los Alamos Meson Physics Facility (LAMPF) have been monitored at a fence-line location both by thermoluminescent dosimeters (TLDs) and high pressure ionization chambers (HPICs). The accelerator is located in irregular terrain consisting of mesas and canyons. Fifteen-minute, accumulated external radiation levels were recorded with the … more

Date: January 1, 1982

Creator: Bowen, B. M.; Buhl, T. E.; Dewart, J. M.; Hansen, W. R.; Talley, D.; Chen, A. I. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Advanced Sensors and Controls for Building Applications: Market Assessment and Potential R&D Pathways

Significant energy savings can be achieved in commercial building operation, along with increased comfort and control for occupants, through the implementation of advanced technologies. This document provides a market assessment of existing building sensors and controls and presents a range of technology pathways (R&D options) for pursuing advanced sensors and building control strategies. This paper is actually a synthesis of five other white papers: the first describes the market assessmen… more

Date: April 13, 2005

Creator: Brambley, Michael R.; Haves, Philip; McDonald, Sean C.; Torcellini, Paul; Hansen, David G.; Holmberg, David et al.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

DOE Advanced Controls R&D Planning Workshop, June 11, 2003, Washington DC: Workshop Results

On June 11, 2003, representatives from universities, federal and state government agencies, Department of Energy national laboratories, and the private sector attended a one-day workshop in Washington, DC. The objective of the workshop was to review and provide input into DOE's assessment of the market for advanced sensors and controls technology and potential R&D pathways to enhance their success in the buildings market place. The workshop consisted of two sessions. During the morning sess… more

Date: April 13, 2005

Creator: Brambley, Michael R.; Haves, Philip; McDonald, Sean C.; Torcellini, Paul; Hansen, David G.; Holmberg, David et al.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Advanced thermionic energy conversion. Progress report, September 1, 1973--August 31, 1974. [Bull Run plant]

The primary objective of the project is to achieve advanced thermionic converter performance which will make thermionic energy conversion practical for applications having high priority in the national energy programs.

Date: January 1, 1974

Creator: Britt, E.J.; Fitzpatrick, G.O.; Hansen, L.K. & Rasor, N.S.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Studies of Fragmentation at 100 MeV/A at the Bevalac Low Energy Beam Line

The detector system currently operating at the Bevalac Low Energy Beam Line is discussed. This system consists of a 34 element forward angle hodoscope and an 8 element array of gas-phoswich modules which has both a wide dynamic range and a large geometrical solid angle. This latter array is arranged at large angles to detect intermediate mass fragments, fission products, and slow, heavy target residues. Applications of this system to studies of reaction mechanisms at intermediate energies are d… more

Date: January 1, 1988

Creator: Britt, H. C.; Fields, D. J.; Hansen, L.; Lanier, R. G.; Marquardt, R. R.; Massoletti, D. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Properties of dynamically compacted WIPP salt

Dynamic compaction of mine-run salt is being investigated for the Waste Isolation Pilot Plant (WIPP), where compacted salt is being considered for repository sealing applications. One large-scale and two intermediate-scale dynamic compaction demonstrations were conducted. Initial fractional densities of the compacted salt range form 0.85 to 0.90, and permeabilities vary. Dynamically-compacted specimens were further consolidated in the laboratory by application of hydrostatic pressure. Permeabil… more

Date: July 1, 1996

Creator: Brodsky, N. S.; Hansen, F. D. & Pfeifle, T. W.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Decision Analysis for Mobilizing and Retrieving Sludge From Double-Shell Tanks

This decision analysis evaluates alternative technologies for the initial mobilization and retrieval of sludges in double-shell tanks (DSTs). The analysis is from the perspective of the need to move sludges from one DST to another for interim retrieval. It supports the more general decision of which technologies to use to retreive various types of DST waste. The initial analysis is from the perspective of a typical DST with 2 ft of sludge to mobilize. During the course of the analysis, it becam… more

Date: September 1, 1997

Creator: Brothers, A. J.; Williams, N. C.; Dukelow, J. S.; Hansen, R. I.; Claghorn, R. D.; Grenard, C. E. et al.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

E-740 proportional drift tube tests

The D0 muton detector will consist of large area arrays of proportional drift tubes (PDT's). The beam crossing repetition rate together with the trigger processing time will constrain the maximum drift time to be about one microsecond, corresponding to a drift distance of about 5.0 cm. With such a narrow cell width, it is possible to use rather long cells (up to 6.0 meters) and still keep cell occupancy acceptable. To simplify track reconstruction, space points will be recorded for each track. … more

Date: March 1, 1985

Creator: Brown, C.; Green, D.; Haggerty, H.; Hansen, S.; Hedin, D.; Jostlein, H. et al.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Investigation of the 2p3/2-3d5/2 line emission of Au53+ -- Au69+ for diagnosing high energy density plasmas

Measurements of the L-shell emission of highly charged gold ions were made under controlled laboratory conditions using the SuperEBIT electron beam ion trap, allowing detailed spectral observations of lines from ironlike Au{sup 53+} through neonlike Au{sup 69+}. Using atomic data from the Flexible Atomic Code, we have identified strong 3d{sub 5/2} {yields} 2p{sub 3/2} emission features that can be used to diagnose the charge state distribution in high energy density plasmas, such as those found… more

Date: January 29, 2008

Creator: Brown, G V; Hansen, S B; Trabert, E; Beiersdorfer, P; Widmann, K; Chen, H et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department