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Quench observation using quench antennas on RHIC IR quadrupole magnets

Description: Quench observation using quench antennas is now being performed routinely on RHIC dipole and quadrupole magnets. Recently, a quench antenna was used on a RHIC IR magnet which is heavily instrumented with voltage taps. It was confirmed that the signals detected in the antenna coils do not contradict the voltage tap signals. The antenna also detects a sign of mechanical disturbance which could be related to a training quench. This paper summarizes signals detected in the antenna and discusses pos… more
Date: July 1995
Creator: Ogitsu, T.; Terashima, A.; Tsuchiya, K.; Ganetis, G.; Muratore, J. & Wanderer, P.
Partner: UNT Libraries Government Documents Department
open access

The magnet system of the Relativistic Heavy Ion Collider (RHIC)

Description: The Relativistic Heavy Ion Collider now under construction at Brookhaven National Laboratory (BNL) is a colliding ring accelerator to be completed in 1999. Through collisions of heavy ions it is hoped to observe the creation of matter at extremely high temperatures and densities, similar to what may have occurred in the original "Big Bang." The collider rings will consist of 1740 superconducting magnet elements. Some of elements are being manufactured by industrial partners (Northrop Grumman an… more
Date: July 1995
Creator: Greene, A.; Anerella, M. & Cozzolino, J.
Partner: UNT Libraries Government Documents Department
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Maintenance Action Work Plan for Waste Area Grouping 1 inactive tanks 3001-B, 3004-B, T-30, and 3013 at Oak Ridge National Laboratory, Oak Ridge, Tennessee. Environmental Restoration Program

Description: This Maintenance Action Work Plan has been prepared to document the activities and procedures for the remediation of four inactive, low-level radioactive tanks at Waste Area Grouping 1, from the Category D list of tanks in the Federal Facility Agreement for the Oak Ridge Reservation (EPA et al. 1994). The four tanks to remediated are tanks 3001-B, 3004-B, T-30, and 3013. Three of the tanks (3001-B, 3004-B, and T-30) will be physically removed from the ground. Because of logistical issues associ… more
Date: July 1, 1995
Partner: UNT Libraries Government Documents Department
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Multidimensional DDT modeling of energetic materials

Description: To model the shock-induced behavior of porous or damaged energetic materials, a nonequilibrium mixture theory has been developed and incorporated into the shock physics code, CTH. The foundation for this multiphase model is based on a continuum mixture formulation given by Baer and Nunziato. This multiphase mixture model provides a thermodynamic and mathematically-consistent description of the self-accelerated combustion processes associated with deflagration-to-detonation and delayed detonatio… more
Date: July 1, 1995
Creator: Baer, M. R.; Hertel, E. S. & Bell, R. L.
Partner: UNT Libraries Government Documents Department
open access

Direct Measurement of A{sub c} using Inclusive Charm Tagging at the SLD Detector

Description: We report a new measurement of A{sub c} using data obtained by SLD in 1993-98. This measurement uses a vertex tag technique, where the selection of a c hemisphere is based on the reconstructed mass of the charm hadron decay vertex. The method uses the 3D vertexing capabilities of SLD's CCD vertex detector and the small and stable SLC beams to obtain a high c-event tagging efficiency and purity of 28% and 82%, respectively. Charged kaons identified by the CRID detector and the charge of the reco… more
Date: July 14, 1999
Creator: Abe, K
Partner: UNT Libraries Government Documents Department
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Diphoton production in p{bar p} collisions at {radical}s = 1.8 TeV

Description: We present measurements of the inclusive {gamma}{gamma} cross section (as a function of invariant mass and photon {epsilon}{sub {tau}}), in p{bar p} collisions at {radical}s = 1.8 TeV, made using the D0 detector at the Fermilab Tevatron collider. The next is leading order (NLO) QCD prediction is found to be in good agreement with the data. The effects of invariant mass and diphoton balance cuts, which test the next-to-leading order contributions to the cross section, are investigated. We also c… more
Date: July 1, 1995
Creator: Abachi, S.
Partner: UNT Libraries Government Documents Department
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Integrated models for plasma/material interaction during loss of plasma confinement.

Description: A comprehensive computer package, High Energy Interaction with General Heterogeneous Target Systems (HEIGHTS), has been developed to evaluate the damage incurred on plasma-facing materials during loss of plasma confinement. The HEIGHTS package consists of several integrated computer models that follow the start of a plasma disruption at the scrape-off layer (SOL) through the transport of the eroded debris and splashed target materials to nearby locations as a result of the energy deposited. The… more
Date: July 29, 1998
Creator: Hassanein, A.
Partner: UNT Libraries Government Documents Department
open access

Progress and future plans for MPC and A at Chelyabinsk-70

Description: This paper describes that portion of the Nuclear Materials Protection, Control, and Accounting (MPC and A) program that is directed specifically to the needs of the All Russian Scientific Research Institute of Technical Physics (VNIITF), also called Chelyabinsk-70. Chelyabinsk-70 is located in the Ural Mountains, approximately 2000 km east of Moscow and 100 km south of Ekaterinburg. The MPC and A work that has been completed, is underway and planned at the facility will be described. During the… more
Date: July 8, 1999
Creator: Apt, K.; Blasy, J.; Bukin, D.; Cahalane, P.; Churikov, Y.; Curtis, D. et al.
Partner: UNT Libraries Government Documents Department
open access

An update on projection methods for transient incompressible viscous flow

Description: Introduced in 1990 was the biharmonic equation (for the pressure) and the concomitant biharmonic miracle when transient incompressible viscous flow is solved approximately by a projection method. Herein is introduced the biharmonic catastrophe that sometimes occurs with these same projection methods.
Date: July 1, 1995
Creator: Gresho, P.M. & Chan, S.T.
Partner: UNT Libraries Government Documents Department
open access

A novel condenser for EUV lithography ring-field projection optics

Description: A condenser for a ring-field extreme ultra-violet (EUV) projection lithography camera is presented. The condenser consists of a gently undulating mirror, that we refer to as a ripple plate, and which is illuminated by a collimated beam at grazing incidence. The light is incident along the ripples rather than across them, so that the incident beam is reflected onto a cone and subsequently focused on to the arc of the ring field. A quasistationary illumination is achieved, since any one field poi… more
Date: July 15, 1999
Creator: Chapman, H. & Nugent, K. A.
Partner: UNT Libraries Government Documents Department
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Neutron spectroscopy of high-density amorphous ice.

Description: Vibrational spectra of high-density amorphous ice (hda-ice) for H{sub 2}O and D{sub 2}O samples were measured by inelastic neutron scattering. The measured spectra of hda-ice are closer to those for high-pressure phase ice-VI, but not for low-density ice-Ih. This result suggests that similar to ice-VI the structure of hda-ice should consist of two interpenetrating hydrogen-bonded networks having no hydrogen bonds between themselves.
Date: July 17, 1998
Creator: Kolesnikov, A. I.
Partner: UNT Libraries Government Documents Department
open access

Production of heavy quark states at CDF

Description: In this paper the author presents results on quarkonia production, B-meson production and b{bar b} correlations in p{bar p} collisions at {radical}s = 1.8 TeV. These results were obtained from data taken with the CDF detector at Fermilab. The author covers recently completed analyses of the 1992-95 collider run. Prospects for the near and more distant future are also discussed.
Date: July 1, 1995
Creator: Papadimitriou, V.
Partner: UNT Libraries Government Documents Department
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Plasma Rotation, Dynamo, and Nonlinear Coupling in the Reversed Field Pinch

Description: Two important effects of MHD fluctuations in the RFP and tokamak are current generation (the dynamo effect) and mode locking. In the T1 and MST RFP experiments new results reveal the mode dynamics underlying these phenomena. In T1 the effect of specific magnetic Fourier modes on the current density profile is evident. In MST, the MHD dynamo term ({delta}v x {delta}B) is measured in the plasma edge, and found to account for the time dependence of the edge current throughout a sawtooth cycle. As … more
Date: July 1, 1995
Creator: Prager, S. C.; Almagri, A. F. & Cekic, M.
Partner: UNT Libraries Government Documents Department
open access

Above and beyond basic public participation

Description: This paper evolved out of a discussion about public participation as it is currently being brought to the fore-front of clean-up activities at hazardous waste sites. There exists much official and unofficial documentation pertaining to the need for public involvement. The purposes for public involvement efforts in Environmental Restoration are: to enable substantive input to the clean-up process; methods for establishing formal, and now informal, mechanisms for public input and awareness of on-… more
Date: July 1, 1995
Creator: Mathai, L. P.; Lefkoff, M. S. & Kelly, E. J.
Partner: UNT Libraries Government Documents Department
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Identification and evaluation of fluvial-dominated deltaic (Class 1 oil) reservoirs in Oklahoma. Quarterly technical progress report, October 1, 1994--December 31, 1994

Description: The Oklahoma Geological Survey (OGS), the Geological Information Systems department, and the School of Petroleum and Geological Engineering at the University of Oklahoma are engaging in a program to identify and address Oklahoma`s oil recovery opportunities in fluvial-dominated deltaic (FDD) reservoirs. This program includes the systematic and comprehensive collection and evaluation of information on all of Oklahoma`s FDD reservoirs and the recovery technologies that have been (or could be) app… more
Date: July 6, 1995
Creator: Mankin, C. J. & Banken, M. K.
Partner: UNT Libraries Government Documents Department
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Black-Hole Astrophysics

Description: Black-hole astrophysics is not just the investigation of yet another, even if extremely remarkable type of celestial body, but a test of the correctness of the understanding of the very properties of space and time in very strong gravitational fields. Physicists` excitement at this new prospect for testing theories of fundamental processes is matched by that of astronomers at the possibility to discover and study a new and dramatically different kind of astronomical object. Here the authors rev… more
Date: July 1, 1995
Creator: Bender, P.; Bloom, E. & Cominsky, L.
Partner: UNT Libraries Government Documents Department
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Predicting the Future at Yucca Mountain

Description: This paper summarizes a climate-prediction model funded by the DOE for the Yucca Mountain nuclear waste repository. Several articles in the open literature attest to the effects of the Global Ocean Conveyor upon paleoclimate, specifically entrance and exit from the ice age. The data shows that these millennial-scale effects are duplicated on the microscale of years to decades. This work also identifies how man may have influenced the Conveyor, affecting global cooling and warming for 2,000 year… more
Date: July 1, 1999
Creator: Wilson, J. R.
Partner: UNT Libraries Government Documents Department
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Analysis of releases due to drilling at the potential Yucca Mountain repository

Description: Human Instrusion into the potential repository at Yucca Mountain, Nevada, was modeled in the Total-System Performance Assessment (``TSPA-91``) recently completed for the Yucca Mountain Site Characterization Project Office of the DOE. The scenario model assumed that the repository would be penetrated at random locations by a number of boreholes drilled using twentieth-century rotary drilling techniques.
Date: July 1, 1993
Creator: Barnard, R.W.
Partner: UNT Libraries Government Documents Department
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The role of amenities and other factors in influencing the location of nonmanufacturing industry in the United States

Description: Consumer and producer services, the latter in particular, are expected to become an important means of diversification and employment growth to the economy of Nevada. It has been suggested that the siting of the nuclear waste repository at Yucca Mountain, Nevada, will lead to a significant reduction in the amenity value of the state and, consequently, the ability of the state to attract these nonmanufacturing industries. This report reviews the literature dealing with factors important to the l… more
Date: July 1990
Creator: Allison, T. & Calzonetti, F. J.
Partner: UNT Libraries Government Documents Department
open access

Silver enhancement of nanogold and undecagold

Description: A recent advance in immunogold technology has been the use of molecular gold instead of colloidal gold. A number of advantages are realized by this approach, such as stable covalent, site-specific attachment, small probe size and absence of aggregates for improved penetration. Silver enhancement has led to improved and unique results for electron and light microscopy, as well as their use with blots and gels. Most previous work with immunogold silver staining has been done with colloidal gold p… more
Date: July 1, 1995
Creator: Hainfield, J. F. & Furuya, F. R.
Partner: UNT Libraries Government Documents Department
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Simulation of Alfven wave-resonant particle interaction

Description: New numerical simulations are presented on the self-consistent dynamics of energetic particles and a set of unstable discrete shear Alfven modes in a tokamak. Our code developed for these simulations has been previously tested in the simulations of the bump-on-tail instability model. The code has a Hamiltonian structure for the mode-particle coupling, with the superimposed wave damping, particle source and classical relaxation processes. In the alpha particle-Alfven wave problem, we observe a t… more
Date: July 1, 1995
Creator: Berk, H.L.; Breizman, B.N. & Pekker, M.
Partner: UNT Libraries Government Documents Department
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Physics prospects with the upgraded CDF detector

Description: The CDF detector is being extensively upgraded for Fermilab Tevatron Run II, which is scheduled to begin in 1999. This talk describes the planned detector upgrades. The power of the upgraded detector is illustrated by showing the expected precision of several physics measurements that will be made with the Run II data: the top mass, the W mass, BR(t{yields}Wb), and the CP violation parameters sin(2{alpha}) and sin(2{beta}).
Date: July 1, 1995
Creator: Hylen, J.
Partner: UNT Libraries Government Documents Department
open access

HAPs-RX(TM)

Description: Coal cleaning is a technology that can solve a broad array of environmental problems associated with older, state-of-the-art, and future electric generating stations. Coal cleaning provides many environmental benefits. It reduces the concentration of inorganic minerals and elements found in association with coal, some of which are potentially toxic even though they are found in coal in only trace amounts. Currently, more sulfur and related S0{sub 2}, is removed by coal cleaning than by all post… more
Date: July 1, 1997
Creator: Harrison, C. D.; Akers, D. J. & Raleigh, C. E., Jr.
Partner: UNT Libraries Government Documents Department
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