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Calculation of oxygen diffusion in plutonium oxide films during the high-temperature oxidation of plutonium-1 weight percent gallium in 500 torr of air

Description: Oxygen self-diffusion in PuO/sub 1.995/ was calculated from rate constants obtained for the parabolic oxidation of the Pu-1 wt % Ga alloy in 500-torr dry air between 250 and 480/degree/C. The activation energy for oxygen vacancy diffusion in the n-type PuO/sub 2-x/ is 22.6 kcal/mole. Results from this investigation are compared with other reported results, and possible explanation for the difference in results is discussed. 21 refs., 5 figs., 1 tab.
Date: May 27, 1988
Creator: Stakebake, J. L.
Item Type: Refine your search to only Report
open access

Geothermal research, Oregon Cascades: Final technical report

Description: Previous USDOE-funded geothermal studies have produced an extensive temperature gradient and heat flow data base for the State of Oregon. One of the important features identified as a result of these studies is a rapid transition from heat flow values on the order of 40 mW/m/sup 2/ in the Willamette Valley and Western Cascades to values of greater than or equal to100 mW/m/sup 2/ in the High Cascades and the eastern portion of the Western Cascades. These data indicate that the Cascade Range in O… more
Date: October 27, 1988
Creator: Priest, G. R. & Black, G. L.
Item Type: Refine your search to only Report
open access

A Measurement of Intermediate Vector Boson Production in 1.8 TeV pp Collisions

Description: The cross section for the production and subsequent decay to electron and neutrino of the W intermediate vector boson has been measured in 1.8 TeV /bar p/p collisions at the Collider Detector at Fermilab. An analysis of events with missing transverse energy greater than 25 GeV and an electron of transverse energy greater than 15 GeV from a data sample of 25nb/sup /minus/1/ gives sigma/center dot/B = 2.57 +- 0.56 +- 0.46nb, in agreement with theoretical predictions. 10 refs., 4 figs.
Date: June 27, 1988
Creator: St. Denis, R. D.
Item Type: Refine your search to only Article
open access

Nitrogen oxide abatement by distributed fuel addition

Description: This research is directed towards the development of engineering guidelines that define the application of distributed fuel addition as a technique for NOx abatement. It is expected that multiple fuel and air addition in the post-flame of a combustion process will increase free radical concentrations which destroy nitrogenous species and thus help them decay toward their equilibrium concentrations, which can be very low in that region of the combustor. Screening experiments were conducted on a … more
Date: June 27, 1988
Creator: Wendt, J. O. L. & Meraab, J.
Item Type: Refine your search to only Report
open access

Nitrogen oxide abatement by distributed fuel addition

Description: A screening study was performed on a laboratory scale downfired combustor to determine the effect of various variables on the effectiveness of the reburning process as a technique for NO{sub x} abatement. The objective was to define optimum conditions under which reburning can be used and to be able to compare the reburning performance of our combustor to those reported by others. For this purpose, a statistically designed parametric investigation was conducted to determine how a set of control… more
Date: December 27, 1988
Creator: Wendt, J. O. L. & Mereb, J. B.
Item Type: Refine your search to only Report
open access

Nitrogen oxide abatement by distributed fuel addition. Quarterly report No. 3, February 1, 1988--April 30, 1988

Description: This research is directed towards the development of engineering guidelines that define the application of distributed fuel addition as a technique for NO{sub x} abatement. It is expected that multiple fuel and air addition in the post-flame of a combustion process will increase free radical concentrations which destroy nitrogenous species and thus help them decay toward their equilibrium concentrations, which can be very low in that region of the combustor. Screening experiments were conducted… more
Date: June 27, 1988
Creator: Wendt, J. O. L. & Meraab, J.
Item Type: Refine your search to only Report
open access

Nitrogen oxide abatement by distributed fuel addition. Quarterly report No. 5, August 1, 1988--October 31, 1988

Description: A screening study was performed on a laboratory scale downfired combustor to determine the effect of various variables on the effectiveness of the reburning process as a technique for NO{sub x} abatement. The objective was to define optimum conditions under which reburning can be used and to be able to compare the reburning performance of our combustor to those reported by others. For this purpose, a statistically designed parametric investigation was conducted to determine how a set of control… more
Date: December 27, 1988
Creator: Wendt, J. O. L. & Mereb, J. B.
Item Type: Refine your search to only Report
open access

Nuclear criticality safety analysis 88-12: Mass volume limits for plutonium containing 0%, 2%, and 4% {sup 240}Pu

Description: Mass volume limits are frequently used in the Separations Areas recovery operations where precise modelling may not be feasible or justified. Mass volume limits also provide a quick, ready and conservative reference to Nuclear Safety personnel when called upon for guidance. Specifically, New Special Recovery Personnel requested mass volume limits directly applicable to the Sample Handling operations. Earlier Nuclear Safety Analysis by J.L. Forstner provided limits at 0%, 2% and 4% {sup 240}Pu t… more
Date: November 27, 1988
Creator: Bullington, J.S.
Item Type: Refine your search to only Report
open access

Nuclear Dependence of Structure Functions in the Shadowing Region of Deep Inelastic Scattering

Description: A discussion of nuclear shadowing in deep inelastic lepton scattering is presented. We show that the parton recombination model suggests that shadowing should begin to occur at larger values of Bjorken x as A increases. This expectation as well as that of weak dependence on Q/sup 2/, and the trend of the x dependence of the shadowing phenomenon are consistent with recent data. Shadowing at small x is combined with nuclear bound state effects, responsible for nuclear dependence at larger x, to p… more
Date: July 27, 1988
Creator: Berger, E. L. & Qiu, Jianwei
Item Type: Refine your search to only Article
open access

Orthogonality of final waist corrections at the IP of the SLC

Description: Because the SLC final IP spot is produced by an aberration-dominated optical system, all components and couplings between dimensions of transverse phase-space must be controlled in the experimental tuning algorithm. For equal emittances epsilon/sub x/ = epsilon/sub y/, this amounts to ten linear optics adjustments. These adjustments are coupled and depend non-linearly on phase-space parameters. A ten-dimensional non-linear fitting program is therefore used to match the lattice in the Final Focu… more
Date: October 27, 1988
Creator: Bambade, P.
Item Type: Refine your search to only Report
open access

Program overview: Remedial actions at Oak Ridge National Laboratory

Description: Research on and development of civilian and defense uses of nuclear materials and technologies have occurred at Oak Ridge National Laboratory (ORNL) since its creation as part of the World War II Manhattan Project in 1943. A diverse legacy of contaminated inactive facilities, research areas, and waste management areas exists; many are candidates for remedial action. Most attention is focused on waste management sites which contain the bulk of ORNL's environmental contamination. A wide variety o… more
Date: July 27, 1988
Creator: Bates, L.D. & Trabalka, J.R.
Item Type: Refine your search to only Article
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