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Monte Carlo Comparisons to a Cryogenic Dark Matter Search Detector with Low Transition-Edge-Sensor Transition Temperature
We present results on phonon quasidiffusion and Transition Edge Sensor (TES) studies in a large, 3-inch diameter, 1-inch thick [100] high purity germanium crystal, cooled to 50 mK in the vacuum of a dilution refrigerator, and exposed with 59.5 keV gamma-rays from an Am-241 calibration source. We compare calibration data with results from a Monte Carlo which includes phonon quasidiffusion and the generation of phonons created by charge carriers as they are drifted across the detector by ionization readout channels. The phonon energy is then parsed into TES based phonon readout channels and input into a TES simulator.
Date:
June 5, 2012
Creator:
Leman, S. W.; McCarthy, K. A.; /MIT, MKI; Brink, P. L.; Cabrera, B.; Cherry, M. et al.
Object Type:
Article
System:
The UNT Digital Library
COLLABORATIVE: FUSION SIMULATION PROGRAM
New York University, Courant Institute of Mathematical Sciences, participated in the ÃÂâÃÂÃÂÃÂÃÂFusion Simulation Program (FSP) Planning ActivitiesÃÂâÃÂÃÂÃÂà[http://www.pppl.gov/fsp], with C.S. Chang as the institutional PI. FSPÃÂâÃÂÃÂÃÂÃÂs mission was to enable scientific discovery of important new plasma phenomena with associated understanding that emerges only upon integration. This requires developing a predictive integrated simulation capability for magnetically-confined fusion plasmas that are properly validated against experiments in regimes relevant for producing practical fusion energy. Specific institutional goal of the New York University was to participate in the planning of the edge integrated simulation, with emphasis on the usage of large scale HPCs, in connection with the SciDAC CPES project which the PI was leading. New York University successfully completed its mission by participating in the various planning activities, including the edge physics integration, the edge science drivers, and the mathematical verification. The activity resulted in the combined report that can be found in http://www.pppl.gov/fsp/Overview.html. Participation and presentations as part of this project are listed in a separation file.
Date:
June 5, 2012
Creator:
Chang, Choong Seock
Object Type:
Report
System:
The UNT Digital Library
Dynamic structure factor in warm dense beryllium
None
Date:
April 5, 2012
Creator:
Glenzer, S H; Fortmann, C; Doeppner, T; Plagemann, K U; Sperling, P; Thiele, R et al.
Object Type:
Article
System:
The UNT Digital Library
Fundamental Physics at the Intensity Frontier. Report of the Workshop Held December 2011 in Rockville, MD.
Particle physics aims to understand the universe around us. The Standard Model of particle physics describes the basic structure of matter and forces, to the extent we have been able to probe thus far. However, it leaves some big questions unanswered. Some are within the Standard Model itself, such as why there are so many fundamental particles and why they have different masses. In other cases, the Standard Model simply fails to explain some phenomena, such as the observed matter-antimatter asymmetry in the universe, the existence of dark matter and dark energy, and the mechanism that reconciles gravity with quantum mechanics. These gaps lead us to conclude that the universe must contain new and unexplored elements of Nature. Most of particle and nuclear physics is directed towards discovering and understanding these new laws of physics. These questions are best pursued with a variety of approaches, rather than with a single experiment or technique. Particle physics uses three basic approaches, often characterized as exploration along the cosmic, energy, and intensity frontiers. Each employs different tools and techniques, but they ultimately address the same fundamental questions. This allows a multi-pronged approach where attacking basic questions from different angles furthers knowledge and provides …
Date:
June 5, 2012
Creator:
Hewett, J. L.; Weerts, H.; Brock, R.; Butler, J. N.; Casey, B. C. K.; Lu, Z. T. et al.
Object Type:
Report
System:
The UNT Digital Library
Final Report
The purpose of this project was to better understand the 'Multiscale Dynamics of Relaxor Ferroelectrics'. The output of the project is summarized in the narrative. The results of the work were presented at a number of different conferences and four papers were written, the references to which are also indicated in the report and which have also been uploaded on e-link. The multiscale dynamics of relaxors was clearly identified in the three characteristic temperatures that were identified. In particular, we were the first group to identify an intermediate temperature, T*, at which the correlations between off-center ions in relaxor cross-over from being dynamic to being static and giving rise to the characteristic relaxor behavior in the dielectric constant. Other groups have now confirmed the existence of such an intermediate temperature. We also made and reported two other observations: (1) a coherent interference phenomena (EIT-like effect) near the transition of several relaxors, which provides information on the nature and mechanism of the transition; and (2) in a similar way, inelastic neutron scattering results were interpreted as resonant scattering of acoustic phonons by localized modes in polar nanodomains. In parallel with the neutron scattering work, we also developed a theory of the …
Date:
April 5, 2012
Creator:
Toulouse, J.
Object Type:
Report
System:
The UNT Digital Library
The Greensheet (Fort Worth, Tex.), Vol. 36, No. 5, Ed. 1 Thursday, April 5, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
April 5, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Fort Worth, Tex.), Vol. 36, No. 96, Ed. 1 Thursday, July 5, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
July 5, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Fort Worth, Tex.), Vol. 35, No. 278, Ed. 1 Thursday, January 5, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
January 5, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Houston, Tex.), Vol. 43, No. 377, Ed. 1 Wednesday, September 5, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
September 5, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Houston, Tex.), Vol. 42, No. 581, Ed. 1 Thursday, January 5, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
January 5, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Fort Worth, Tex.), Vol. 36, No. 4, Ed. 1 Thursday, April 5, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
April 5, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Dallas, Tex.), Vol. 36, No. 155, Ed. 1 Wednesday, September 5, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
September 5, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Austin, Tex.), Vol. 35, No. 9, Ed. 1 Thursday, April 5, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
April 5, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Austin, Tex.), Vol. 35, No. 22, Ed. 1 Thursday, July 5, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
July 5, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Arlington-Grand Prairie, Tex.), Vol. 36, No. 3, Ed. 1 Thursday, April 5, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
April 5, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Houston, Tex.), Vol. 43, No. 431, Ed. 1 Friday, October 5, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
October 5, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Arlington-Grand Prairie, Tex.), Vol. 35, No. 276, Ed. 1 Thursday, January 5, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
January 5, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Arlington-Grand Prairie, Tex.), Vol. 36, No. 94, Ed. 1 Thursday, July 5, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
July 5, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Houston, Tex.), Vol. 43, No. 533, Ed. 1 Wednesday, December 5, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
December 5, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Fort Worth, Tex.), Vol. 36, No. 95, Ed. 1 Thursday, July 5, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
July 5, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Fort Worth, Tex.), Vol. 35, No. 277, Ed. 1 Thursday, January 5, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
January 5, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Final Report on Improved Creep-Fatigue Models on Advanced Materials for Sfr Applications.
None
Date:
November 5, 2012
Creator:
Li, M.; Soppet, W.K.; Majumdar, S.; Rink, D. & Natesan, K. (NE ADVANCED REACTOR)
Object Type:
Report
System:
The UNT Digital Library
Multi-Scale Mass Transfer Processes Controlling Natural Attenuation and Engineered Remediation: An IFRC Focused on Hanford’s 300 Area Uranium Plume January 2011 to January 2012
The Integrated Field Research Challenge (IFRC) at the Hanford Site 300 Area uranium (U) plume addresses multi-scale mass transfer processes in a complex subsurface biogeochemical setting where groundwater and riverwater interact. A series of forefront science questions on reactive mass transfer motivates research. These questions relate to the effect of spatial heterogeneities; the importance of scale; coupled interactions between biogeochemical, hydrologic, and mass transfer processes; and measurements and approaches needed to characterize and model a mass-transfer dominated biogeochemical system. The project was initiated in February 2007, with CY 2007, CY 2008, CY 2009, and CY 2010 progress summarized in preceding reports. A project peer review was held in March 2010, and the IFRC project acted upon all suggestions and recommendations made in consequence by reviewers and SBR/DOE. These responses have included the development of 'Modeling' and 'Well-Field Mitigation' plans that are now posted on the Hanford IFRC web-site, and modifications to the IFRC well-field completed in CY 2011. The site has 35 instrumented wells, and an extensive monitoring system. It includes a deep borehole for microbiologic and biogeochemical research that sampled the entire thickness of the unconfined 300 A aquifer. Significant, impactful progress has been made in CY 2011 including: …
Date:
March 5, 2012
Creator:
Zachara, John M.; Bjornstad, Bruce N.; Christensen, John N.; Conrad, Mark S.; Fredrickson, Jim K.; Freshley, Mark D. et al.
Object Type:
Report
System:
The UNT Digital Library
Review of the WECC EDT phase 2 EIM benefits analysis and results report.
A region-wide Energy Imbalance Market (EIM) was recently proposed by the Western Electricity Coordinating Council (WECC). In order for the Western Area Power Administration (Western) to make more informed decisions regarding its involvement in the EIM, Western asked Argonne National Laboratory (Argonne) to review the EIM benefits study (the October 2011 revision) performed by Energy and Environmental Economics, Inc. (E3). Key components of the E3 analysis made use of results from a study conducted by the National Renewable Energy Laboratory (NREL); therefore, we also reviewed the NREL work. This report examines E3 and NREL methods and models used in the EIM study. Estimating EIM benefits is very challenging because of the complex nature of the Western Interconnection (WI), the variability and uncertainty of renewable energy resources, and the complex decisions and potentially strategic bidding of market participants. Furthermore, methodologies used for some of the more challenging aspects of the EIM have not yet matured. This review is complimentary of several components of the EIM study. Analysts and modelers clearly took great care when conducting detailed simulations of the WI using well-established industry tools under stringent time and budget constraints. However, it is our opinion that the following aspects of the …
Date:
April 5, 2012
Creator:
Veselka, T.D.; Poch, L.A. & Botterud, A. (Decision and Information Sciences)
Object Type:
Report
System:
The UNT Digital Library