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30 Matching Results
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Detection of the Characteristic Pion-Decay Signature in Supernova Remnants
Provides direct evidence that cosmic-ray protons are accelerated in SNRs.
Date:
April 22, 2013
Creator:
Ackermann, M.; Ajello, M.; Allafort, A.; Baldini, L.; Ballet, J.; Barbiellini, G. et al.
System:
The UNT Digital Library
X-ray diffraction diagnostic design for the National Ignition Facility
None
Date:
August 22, 2013
Creator:
Ahmed, M F; Ayers, J; House, A; Lamb, Z; Swift, R & Swift, D
System:
The UNT Digital Library
Image Processing And Control Of A Programmable Spatial Light Modulator For Spatial Beam Shaping
None
Date:
January 22, 2013
Creator:
Awwal, A. S.; Orth, C.; Tse, E.; Matone, J.; Paul, M.; Hardy, C. et al.
System:
The UNT Digital Library
Design and implementation of Dilation X-ray Imager for National Ignition Facility "DIXI"
None
Date:
August 22, 2013
Creator:
Ayers, M. J.; Bell, P. M.; Bradley, D.; Chung, M.; Felker, B.; Hares, J. et al.
System:
The UNT Digital Library
Up Sector of Minimal Flavor Violation: Top-Quark Properties and Direct D Meson CP Violation
None
Date:
August 22, 2013
Creator:
Bai, Yang; /Wisconcin U., Madison; Berger, Joshua; Hewett, JoAnne L.; Li, Ye & /SLAC
System:
The UNT Digital Library
Single-Spin Asymmetries in Semi-inclusive Deep Inelastic Scattering and Drell-Yan Processes
None
Date:
April 22, 2013
Creator:
Brodsky, Stanley J.; Hwang, Dae Sung; Kovchegov, Yuri V.; Schmidt, Ivan & Sievert, Matthew D.
System:
The UNT Digital Library
A Feasibility Study of an e e- Ring Collider for Higgs Factory
None
Date:
April 22, 2013
Creator:
Cai, Yunhai; Chao, Alex; Nosochkov, Yuri; Wienands, Uli & Zimmermann, Frank
System:
The UNT Digital Library
Expediting Groundwater Sampling at Hanford and Making It Safer
The CH2M HILL Plateau Remediation Company (CHPRC) manages the groundwatermonitoring programs at the Department of Energy's 586-square-mile Hanford site in southeastern Washington state. These programs are regulated by the Resource Conservation and Recovery Act (RCRA), the Comprehensive Environmental Response Compensation and Liability Act (CERCLA), and the Atomic Energy Act (AEA). The purpose of monitoring is to track existing groundwater contamination from past practices, as well as other potential contamination that might originate from RCRA treatment, storage, and disposal (TSD) facilities. An integral part of the groundwater-monitoring program involves taking samples of the groundwater and measuring the water levels in wells scattered across the site. Each year, more than 1,500 wells are accessed for a variety of reasons.
Date:
January 22, 2013
Creator:
Connell, Carl W. Jr.; Carr, Jennifer S.; Hildebrand, R. Douglas; Schatz, Aaron L.; Conley, S. F. & Brown, W. L.
System:
The UNT Digital Library
Application of Direct Assessment Approaches and Methodologies to Cathodically Protected Nuclear Waste Transfer Lines
The U.S. Department of Energy's (DOE) Hanford Site is responsible for the safe storage, retrieval, treatment, and disposal of approximately 54 million gallons (204 million liters) of radioactive waste generated since the site's inception in 1943. Today, the major structures involved in waste management at Hanford include 149 carbon steel single-shell tanks, 28 carbon-steel double-shell tanks, plus a network of buried metallic transfer lines and ancillary systems (pits, vaults, catch tanks, etc.) required to store, retrieve, and transfer waste within the tank farm system. Many of the waste management systems at Hanford are still in use today. In response to uncertainties regarding the structural integrity of these systems,' an independent, comprehensive integrity assessment of the Hanford Site piping system was performed. It was found that regulators do not require the cathodically protected pipelines located within the Hanford Site to be assessed by External Corrosion Direct Assessment (ECDA) or any other method used to ensure integrity. However, a case study is presented discussing the application of the direct assessment process on pipelines in such a nuclear environment. Assessment methodology and assessment results are contained herein. An approach is described for the monitoring, integration of outside data, and analysis of this information …
Date:
January 22, 2013
Creator:
Dahl, Megan M.; Pikas, Joseph; Edgemon, Glenn L. & Philo, Sarah
System:
The UNT Digital Library
A New Pad-Based Neutron Detector for Stereo Coded Aperture Thermal Neutron Imaging
N/A
Date:
October 22, 2013
Creator:
Dioszegi, I.; Yu, B.; Smith, G.; Schaknowski, N.; Fried, J.; Vanier, P. E. et al.
System:
The UNT Digital Library
Demonstration of Cascaded Optical Inverse Free-Electron Laser Accelerator
None
Date:
May 22, 2013
Creator:
Dunning, M.; Hemsing, E.; Hast, C.; Raubenheimer, T. O.; Weathersby, S.; Xiang, D. et al.
System:
The UNT Digital Library
Approaches for Addressing Risks in Reprocessing Facilities: An Assessment
N/A
Date:
September 22, 2013
Creator:
G., Martinez-Guridi; V., Mubayi & Bari, R. A.
System:
The UNT Digital Library
CSPAD-140k - A Versatile Detector for LCLS Experiments
None
Date:
November 22, 2013
Creator:
Herrmann, Sven; Boutet, Sebastian; Duda, Brian; Fritz, David; Haller, Gunther; Hart, Philip et al.
System:
The UNT Digital Library
First Determination of the 8Li Valence Neutron Asymptotic Normalization Coefficient Using the 7Li(8Li,7Li)8Li Reaction
None
Date:
February 22, 2013
Creator:
Howell, D; Davids, B; Greene, J P; Kanungo, R; Mythili, S; Ruiz, C et al.
System:
The UNT Digital Library
Characterization of a megapixel CMOS charge dump and read camera
None
Date:
August 22, 2013
Creator:
Kimbrough, J R; Bell, P M; Datte, P S; Thao, M S; de Dios, E & Peters, A S
System:
The UNT Digital Library
Use of Virtual Frisch-Grid CdZnTe Detectors to Attain Sub-millimeter Spatial Resolution
N/A
Date:
October 22, 2013
Creator:
Lee, K.; Bolotnikov, A. E.; Bae, S.; Roy. N. U.; Camarda, G. S.; Petric, M. et al.
System:
The UNT Digital Library
Observation of direct CP violation in the measurement of the Cabibbo-Kobayashi-Maskawa angle gamma with B+- to D(*)K(*)+- decays
None
Date:
May 22, 2013
Creator:
Lees, J. P.; Poireau, V.; Tisserand, V.; /Annecy, LAPP; Grauges, E.; /Barcelona U., ECM et al.
System:
The UNT Digital Library
A Search for the Rare Decays B \to pi l+l- and B0 \to eta l+l-
None
Date:
August 22, 2013
Creator:
Lees, J. P.; Poireau, V.; Tisserand, V.; /Annecy, LAPP; Grauges, E.; /Barcelona U., ECM et al.
System:
The UNT Digital Library
RAPID DETERMINATION OF {sup 210} PO IN WATER SAMPLES
A new rapid method for the determination of {sup 210}Po in water samples has been developed at the Savannah River National Laboratory (SRNL) that can be used for emergency response or routine water analyses. If a radiological dispersive device (RDD) event or a radiological attack associated with drinking water supplies occurs, there will be an urgent need for rapid analyses of water samples, including drinking water, ground water and other water effluents. Current analytical methods for the assay of {sup 210}Po in water samples have typically involved spontaneous auto-deposition of {sup 210}Po onto silver or other metal disks followed by counting by alpha spectrometry. The auto-deposition times range from 90 minutes to 24 hours or more, at times with yields that may be less than desirable. If sample interferences are present, decreased yields and degraded alpha spectrums can occur due to unpredictable thickening in the deposited layer. Separation methods have focused on the use of Sr Resin�, often in combination with 210Pb analysis. A new rapid method for {sup 210}Po in water samples has been developed at the Savannah River National Laboratory (SRNL) that utilizes a rapid calcium phosphate co-precipitation method, separation using DGA Resin� (N,N,N�,N� tetraoctyldiglycolamide extractant-coated resin, Eichrom …
Date:
May 22, 2013
Creator:
Maxwell, S.
System:
The UNT Digital Library
Fermi Large Area Telescope Observations of the Active Galaxy 4C 55.17: Steady, Hard Gamma-Ray Emission and its Implications
None
Date:
April 22, 2013
Creator:
McConville, W.; Ostorero, L.; Moderski, R.; Stawarz, L.; Cheung, C. C.; Ajello, M. et al.
System:
The UNT Digital Library
Microscopic Description of Nuclear Fission: Fission Barrier Heights of Even-Even Actinides
None
Date:
January 22, 2013
Creator:
McDonnell, J.; Schunck, N. & Nazarewicz, W.
System:
The UNT Digital Library
Analytic Model for Richtmyer-Meshkov Turbulent Mixing Widths
None
Date:
January 22, 2013
Creator:
Mikaelian, K O
System:
The UNT Digital Library
NEXT GENERATION SOLAR COLLECTORS FOR CSP
ADVANCED REFLECTIVE FILMS AND PANELS FOR NEXT GENERATION SOLAR COLLECTORS
Date:
April 22, 2013
Creator:
Molnar, Attila & O'Neill, Mark
System:
The UNT Digital Library
Electron-Mediated Relaxation Following Ultrafast Pumping of Strongly Correlated Materials: Model Evidence of a Correlation-Tuned Crossover between Thermal and Nonthermal States
None
Date:
August 22, 2013
Creator:
Moritz, B.; /SIMES, Stanford /SLAC /North Dakota U. /Northern Illinois U.; Kemper, A.F.; Sentef, M.; Devereaux, T.P.; /SIMES, Stanford /SLAC et al.
System:
The UNT Digital Library