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F(1) for B (forward) D*ln from lattice QCD

Description: The authors would like to determine |V{sub cb}| from the exclusive semi-leptonic decay B{yields}D*lv. The differential decay rate is d{Lambda}/dw = G{sub F}{sup 2}/4{pi}{sup 3}(w{sup 2}-1){sup 1/2}m{sub D*}{sup 3} (m{sub B}-m{sub D*}){sup 2}G(w)|V{sub cb}|{sup 2}|F{sub B{yields}D*}(w)|{sup 2}, where w = v {center_dot} v{prime} and G(1) = 1. At zero recoil (w = 1) heavy-quark symmetry requires F{sub B{yields}D*}(1) to be close to 1. So, |V{sub cb}| is determined by dividing measurements of d{Lam… more
Date: July 12, 2002
Creator: A.S. Kronfeld, P.B. Mackenzie and J.N. Simone
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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PROPOSAL FOR A SILICON VERTEX TRACKER (VTX) FOR THE PHENIX EXPERIMENT

Description: We propose the construction of a Silicon Vertex Tracker (VTX) for the PHENIX experiment at RHIC. The VTX will substantially enhance the physics capabilities of the PHENIX central arm spectrometers. Our prime motivation is to provide precision measurements of heavy-quark production (charm and beauty) in A+A, p(d)+A, and polarized p+p collisions. These are key measurements for the future RHIC program, both for the heavy ion program as it moves from the discovery phase towards detailed investigati… more
Date: October 1, 2004
Creator: AKIBA,Y.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Analysis of heat transfer during quenching of a gear blank

Description: This paper presents experimental and numerical results for the quench of a gear blank in agitated and stagnant oil. Heat transfer within the gear blank is analyzed with a whole domain-optimizer technique inverse solution method, to calculate the time history at every point in the gear blank. The development of this procedure represents the first stage in an overall analysis of the quench process that will later include material phase transformations and deformation. The paper presents ten varia… more
Date: March 1, 1999
Creator: Aceves, S M & Sahai, V
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Synchrotron Studies of Narrow Band and Low-Dimensional Materials. Final Report for July 1, 1990---December 31, 2002

Description: This report summarizes a 12-year program of various kinds of synchrotron spectroscopies directed at the electronic structures of narrow band and low-dimensional materials that display correlated electron behaviors such as metal-insulator transitions, mixed valence, superconductivity, Kondo moment quenching, heavy Fermions, and non-Fermi liquid properties.
Date: May 13, 2003
Creator: Allen, J. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Studies of quench propagation in a superconducting window frame magnet

Description: During the testing of a meter long, superconducting window frame magnet, information from many spontaneously generated quenches have been recorded by an on-line computer system. Nearly every layer in an eleven layer dipole had a voltage tap and for some layers this subdivided into two halves. This allowed us to study development of the quenches in some detail. Knowledge of the resistances throughout the magnet also allowed the temperature distributions in the superconducting windings to be dete… more
Date: January 1, 1981
Creator: Allinger, J.; Carroll, A.; Danby, G.; DeVito, B.; Jackson, J.; Leonhardt, M. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Quench thresholds in operational superconducting magnets

Description: Superconducting magnets exposed to intense primary proton beams in high energy physics applications are subject to potentially extreme heat deposition. The beam power density, its duration and spatial distribution, the current density in the superconductor and, potentially, in the normal metal substrate, as well as the construction and cooling details of the magnet, are all relevant parameters. An extension of some earlier work is discussed in which 28.5 GeV/c proton beams with up to 50 k joule… more
Date: January 1, 1978
Creator: Allinger, J.; Danby, G.; Foelsche, H.; Jackson, J.; Lowenstein, D.; Prodell, A. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Stability of high field superconducting dipole magnets

Description: Superconducting dipole magnets of the window-frame type were constructed and operated successfully at Brookhaven National Laboratory. Examples of this type of magnet are the 6 T ''Model T'' magnet, and the 4 T 8/sup 0/ superconducting bending magnet. The latter magnet operated reliably since October 1973 as part of the proton beam transport to the north experimental area at the BNL AGS with intensities of typically 8 x 10/sup 12/ protons at 28.5 GeV/c passing through the magnet in a curved traj… more
Date: January 1, 1977
Creator: Allinger, J.; Danby, G.; Foelsche, H.; Jackson, J.; Prodell, A. & Stevens, A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Ultra stable high field superconducting dipoles

Description: Tolerance of superconducting magnets to beam heating can be crucial. The magnets described produce a dipole field between parallel current sheets. Images in iron extend the sheets. The field is parallel to the current sheets so that high purity aluminum spacers can extend over the full length and height of the coil. High aluminum thermal conductivity and diffusivity results in locally produced heat being dissipated into helium over a large area. All magnets show little training with complete ''… more
Date: January 1, 1977
Creator: Allinger, J.; Danby, G.; Jackson, J. & Prodell, A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Performance of dipole magnets in helium II

Description: Data from tests in He II of four 1-meter-long magnets are presented. The maximum quench current is increased up to 30 percent, compared with tests in He I. Data from calorimetric measurements of heat generated during cyclic operation are presented. Quenches were induced by heaters placed near the conductor, and the energy required to induce quenches in He II and in He I are compared.
Date: March 1, 1981
Creator: Althaus, R.; Caspi, S.; Gilbert, W.S.; Hassenzahl, W.; Meuser, R.; Rechen, J. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Poker Face of Inelastic Dark Matter: Prospects at Upcoming Direct Detection Experiments

Description: The XENON100 and CRESST experiments will directly test the inelastic dark matter explanation for DAMA's 8.9{sigma} anomaly. This article discusses how predictions for direct detection experiments depend on uncertainties in quenching factor measurements, the dark matter interaction with the Standard Model and the halo velocity distribution. When these uncertainties are accounted for, an order of magnitude variation is found in the number of expected events at CRESST and XENON100. The process of … more
Date: August 12, 2011
Creator: Alves, Daniele S.M.; Lisanti, Mariangela; /SLAC /Stanford U., Phys. Dept.; Wacker, Jay G. & /SLAC
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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THE IMPACT OF KINETICS ON NEPHELINE FORMATION IN NUCLEAR WASTE GLASSES

Description: Sixteen glass compositions were selected to study the potential impacts of the kinetics of nepheline formation in high-level nuclear waste (HLW) glass. The chosen compositions encompassed a relatively large nepheline discriminator (ND) range, 0.40-0.66, and included a relatively broad range, and amount of, constituents including high aluminum and high boron concentrations. All glasses were fabricated in the laboratory and subsequently exposed to six different cooling treatments. The cooling tre… more
Date: March 7, 2011
Creator: Amoroso, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Development of a carburizing and quenching simulation tool: Numerical simulations of rings and gears

Description: This paper describes a calculational procedure using the ABAQUS finite element code that simulates a carburizing and quench heat treat cycle for automotive gears. The procedure features a numerically efficient 2-phase constitutive model to represent transformational plasticity effects for the austenite/martensite transformation together with refined finite element meshes to capture the steep gradients in stress and composition near the gear surfaces. The procedure is illustrated on carburizing … more
Date: June 24, 1996
Creator: Anderson, C.; Goldman, P. & Rangaswamy, P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Fundamentals of Melt-Water Interfacial Transport Phenomena: Improved Understanding for Innovative Safety Technologies in ALWRs

Description: The interaction and mixing of high-temperature melt and water is the important technical issue in the safety assessment of water-cooled reactors to achieve ultimate core coolability. For specific advanced light water reactor (ALWR) designs, deliberate mixing of the core-melt and water is being considered as a mitigative measure, to assure ex-vessel core coolability. The goal of this work is to provide the fundamental understanding needed for melt-water interfacial transport phenomena, thus enab… more
Date: April 26, 2005
Creator: Anderson, M.; Corradini, M.; Bank, K.Y.; Bonazza, R. & Cho, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Evaluation of 2 1/4 Cr-1 Mo steel for liquid lithium containment. [Part] 2. Effects of post-weld heat treatment and niobium content. Annual report, 1979

Description: The lithium corrosion resistance of the regular grade of 2 1/4 Cr-1 Mo steel can be vastly improved with a proper postweld heat treatment, but even greater improvements are needed. Results indicate that if weldments were tempered sufficiently long at 760C to remove all Mo/sub 2/C from the microstructure, even greater resistance to attack by low nitrogen lithium could be achieved. Corrosion tests should eventually be performed on regular grade 2 1/4 Cr-1 Mo steel weldments which have been given … more
Date: 1979
Creator: Anderson, T. L. & Edwards, Glen R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Construction and test results from 15 m-long, 50 mm aperture SSC Collider Dipole models

Description: Construction details, assembly data, coil stress and end force measurements are reported with quench data for the initial full-length SSC model dipoles with 50 mm aperture being built at BNL.
Date: December 31, 1992
Creator: Anerella, M.; Cottingham, J.; Ganetis, G.; Garber, M.; Ghosh, A.; Greene, A. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Construction and test results from 15 m-long, 50 mm aperture SSC Collider Dipole models

Description: Construction details, assembly data, coil stress and end force measurements are reported with quench data for the initial full-length SSC model dipoles with 50 mm aperture being built at BNL.
Date: January 1, 1992
Creator: Anerella, M.; Cottingham, J.; Ganetis, G.; Garber, M.; Ghosh, A.; Greene, A. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Final Technical Report: Intensive Quenching Technology for Heat Treating and Forging Industries

Description: Intensive quenching (IQ) process is an alternative way of hardening (quenching) steel parts through the use of highly agitated water and then still air. It was developed by IQ Technologies, Inc. (IQT) of Akron, Ohio. While conventional quenching is usually performed in environmentally unfriendly oil or water/polymer solutions, the IQ process uses highly agitated environmentally friendly water or low concentration water/mineral salt solutions. The IQ method is characterized by extremely high coo… more
Date: December 21, 2005
Creator: Aronov, Michael A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Quenching of Einstein-coefficients by photons

Description: Experimental evidence is presented for the change of Einstein's A- coefficients for spontaneous transitions from the upper laser level of argon ion laser discharge due to the presence of the high- intensity laser flux. To demonstrate that this quenching effect cannot be attributed to a reduction in self-absorption of the strong spontaneous emission line, absorption and line profile measurements have been performed. Computer modelling of the reduction of self absorption due to Rabi splitting als… more
Date: March 1, 1991
Creator: Aumayr, F. (Technische Univ., Vienna (Austria). Inst. fuer Allgemeine Physik); Lee, W.; Skinner, C. H. & Suckewer, S. (Princeton Univ., NJ (USA). Plasma Physics Lab.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Quenching of Einstein's A-coefficients by photons

Description: We present evidence for the quenching of Einstein A-coefficients in an Ar-ion laser discharge due to the presence of a high intensity laser flux. The reduction in spontaneous emission intensity when lasing occurs was found to be dependent on the Einstein A-coefficient for transitions originating from the same upper level. 9 refs., 3 figs.
Date: May 1, 1989
Creator: Aumayr, F.; Hung, J. & Suckewer, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Scaling of Quench Front and Entrainment-Related Phenomena

Description: The scaling of thermal hydraulic systems is of great importance in the development of experiments in laboratory-scale test facilities that are used to replicate the response of full-size prototypical designs. One particular phenomenon that is of interest in experimental modeling is the quench front that develops during the reflood phase in a PWR (Pressurized Water Reactor) following a large-break LOCA (Loss of Coolant Accident). The purpose of this study is to develop a scaling methodology such… more
Date: April 2002
Creator: Aumiller, D. L.; Hourser, R. J.; Holowach, M. J.; Hochreiter, L. E. & Cheung, F-B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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