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Effects of energetical particles on ballooning modes in high temperature tokamaks

Description: This report describes the work done by Science Applications International Corporation to study the effects of energetic particles on the microstability of a high temperature tokamak. The effects of an energetic population on ballooning modes in a large aspect ratio, shifted circular flux surface tokamak equilibrium are investigated with the newly developed gryokinetic numerical technique. The gryokinetic equations for the background ion and electron, as well as that of the energetic population are solved directly as an initial problem. The energetic particles are modeled with a slow-down distribution in energy. It is found that the ballooning mode stability of the plasma with an energetic species of increasing concentration does not differ much from an increase in the background plasma beta, except for possible energetic particle drift resonances. This result is encouraging to the idea that energetic particles such as alphas may be used to stabilize the ballooning modes in a fusion reactor.
Date: January 22, 1992
Creator: Tsang, K.T.
Partner: UNT Libraries Government Documents Department
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Statistical analysis of fluorimeter operation

Description: Acceptance criteria for uranium check standards used to verify fluorimeter calibration have been developed. This work was done in response to Tiger Team finding QA/BMP-5, item 4. Data used as input to these calculations is retained in the Tiger Team closeout file, located in the Technical Service Division managers office. 3 refs., 4 tabs.
Date: January 22, 1991
Creator: Cutlip, L. B.
Partner: UNT Libraries Government Documents Department
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Acceleration of Polarized Protons to Relativistic Energies

Description: Maintenance of poiarization of polarized protons in a linear accelerator is known to be feasible. Circular accelerators present a different problem, and the investigation of the interaction of orbit dynamics and particle polarization in general is undertaken. The equation of motion of the spin vector of a charged particle in a magnetic field as formulated by Bargman, Michel, and Telegdi is utilized in the study of depolarization for several accelerators. High values of depoiarization are obtained, and means for avoiding such depolarization are suggested. (D.C.W.)
Date: January 22, 1962
Creator: Courant, E. D.
Partner: UNT Libraries Government Documents Department
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HRT Sampler Development

Description: No Description Available.
Date: January 22, 1957
Creator: Hannaford, B. A.
Partner: UNT Libraries Government Documents Department
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REDUCED, a data reduction code

Description: No Description Available.
Date: January 22, 1975
Creator: Maron, N.
Partner: UNT Libraries Government Documents Department
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SNPO-C nozzle design review

Description: No Description Available.
Date: January 22, 1964
Partner: UNT Libraries Government Documents Department
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THE CORROSION RESISTANCE OF SEVERAL ALLOYS IN AN HF-H$sub 2$O ATMOSPHERE AT HIGH TEMPERATURES

Description: Tests indicate that of the various alloys tssted for corrosion resistance when exposed 10 an HF-HP atmosphere at 1070 F, the Cr-Ni alloys, as a group, give the best corrosion resistance where strength at high temperature is desired. Other alloys have given excellent results but the lack of strength at the higher temperatures or cost, is against their use in production equipment. (auth)
Date: January 22, 1952
Creator: Ritchie, C.F. & Teter, E.K.
Partner: UNT Libraries Government Documents Department
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Attachment of Weldable Strain Gages to Structural Parts

Description: Attachment of Microdot Weldable Strain Gages requires that joints be produced between the welding flange of the gage and the structural part being evaluated.
Date: January 22, 1965
Creator: Stemann, L.G.
Partner: UNT Libraries Government Documents Department
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Combustion Research Program: Flame studies, laser diagnostics, and chemical kinetics

Description: We have made a detailed study of the care that must be taken to correctly measure OH radical concentrations in flames. A large part of these studies has concerned collisional quenching of hydride radical species (OH, NH, and NH{sub 2}), in particular the dependence upon rotational level and collision velocity (temperature). The results on OH and NH have shown unique and interesting behavior from the viewpoint of fundamental molecular dynamics, pointing to quenching often governed by collisions on an anisotropic, attractive surface, whereas NH{sub 2} quenching appears to depend on state-mixing considerations, not dynamic control. This state-specific behavior of these small, theoretically tractable hydrides has direct ramifications for quantitative flame diagnostics. Our other effort in the diagnostic area has been repeated but unsuccessful searches for laser induced fluorescence in the vinyl radical.
Date: January 22, 1991
Creator: Crosley, D.R.
Partner: UNT Libraries Government Documents Department
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D/sup -/ production by multiple charge-transfer collisions of low-energy D ions and atoms in cesium vapor

Description: The production of D/sup -/ by multiple charge-transfer collisions of a D/sup +/ beam in a cesium-vapor target is considered for D/sup +/ energies above 300 eV. The cross sections relevant to D/sup -/ formation are obtained by a least-squares fit of three-charge-state differential equations to experimental yield curves. Implications for production of intense negative-ion beams are discussed, and speculations are made about extrapolation to lower engeries.
Date: January 22, 1978
Creator: Hooper, E. B. Jr.; Willmann, P. A. & Schlachter, A. S.
Partner: UNT Libraries Government Documents Department
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Measurement of Transverse Beam Size in Accumulator as a Function of Momenta During Stacking

Description: The horizontal and vertical emittance as a function of momentum was measured in the accumulator while stacking with a small stack. The data suggests that the transverse emittance of the beam is blown up between the injection orbit and the stacking orbit. The technique shows promise, and should be repeated with a large stack to measure the emittance in the accumulator at a time when we have large losses.
Date: January 22, 1992
Creator: Halling, Mike
Partner: UNT Libraries Government Documents Department
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Optimization of the 8 GeV AP3-P1 Lattice for Antiproton Transfers

Description: During 8 GeV antiproton transfers between the Accumulator to the Main Injector, the antiprotons must travel through four separate beam lines, AP3, AP1, P2, and P1. This note describes the optimization of a single lattice that describes these beam lines for 8 GeV antiproton transfers from the Accumulator to the Main Injector and 8 GeV proton transfers from the Main Injector to the Accumulator.
Date: January 22, 2001
Creator: McGinnis, Dave
Partner: UNT Libraries Government Documents Department
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Multilateral Development Banks: Basic Background

Description: As a group, the multilateral development banks (MDBs) are the largest source of development assistance to middle- and low-income developing countries. This report discusses the organization and operations of the MDBs. It shows the share of their lending by region and by economic sector. The report is based on preliminary data for 2000. (The fiscal years for the regional banks ended on December 31.) It uses data for 1999 (to mid-2000 for the World Bank) in several sections. It will be updated when newer data become available.
Date: January 22, 2001
Creator: Sanford, Jonathan E.
Partner: UNT Libraries Government Documents Department
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Committee System Rules Changes in the House, 106th Congress

Description: This fact sheet details changes in the committee system contained in H. Res. 5, the rules of the House for the 106th Congress
Date: January 22, 1999
Creator: Schneider, Judy
Partner: UNT Libraries Government Documents Department
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Environmental Risk and Cost-Benefit Analysis: A Review of Proposed Legislative Mandates, 1993-1998

Description: Between 1993 and 1998 Congress considered many proposals that aimed to increase or improve the use of risk analysis by federal agencies, especially in developing environmental rules. This report describes differences and similarities among selected provisions of key proposals: Senate-passed Johnston amendments to S. 171 and S. 2019 in the 103rd Congress; S. 343, as reported by the Committee on the Judiciary, in the 104th Congress; House-passed H.R. 9 in the 104th Congress; S. 981, as reported by the Committee on Governmental Affairs, in the 105th Congress, and S. 1728, as introduced, in the 105th Congress.
Date: January 22, 1999
Creator: Schierow, Linda-Jo
Partner: UNT Libraries Government Documents Department
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Health Maintenance Organizations

Description: This report discusses the "health maintenance organization", which is an entity that provides specific health services to its members for a prepaid, fixed payment.
Date: January 22, 1982
Creator: Price, Richard J.
Partner: UNT Libraries Government Documents Department
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Energy Provisions of the Farm Bill: Comparison of the New Law with Previous Law and House and Senate Bills

Description: This report provides a side-by-side comparison of the energy provisions of the new law with previously existing law, as well as the versions engrossed by the House and Senate in the 107th Congress. While the energy provisions in the House version were spread throughout the bill, the Senate version consolidated most of its energy provisions into Title IX - Energy. Both bills provided for the use of reserve land for renewable energy production. The House version also allowed for loans to farmers in response to high energy prices, while the Senate version did not.
Date: January 22, 2003
Creator: Yacobucci, Brent D.
Partner: UNT Libraries Government Documents Department
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Bills, Resolutions, Nominations, and Treaties: Origins, Deadlines, Requirements, and Uses

Description: In addition to bill and/or joint resolution this report presents two other acts of congress; 1) nominations and 2) treaties. It also discusses the characteristics and uses of six different kind of business before Congress, such as designation, origin, deadline for action, requirements for approval, and use.
Date: January 22, 1999
Creator: Beth, Richard S.
Partner: UNT Libraries Government Documents Department
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