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Reggeon Field Theory and the phases of QCD

Description: We propose a Reggeon Field Theory phase diagram involving Sub-critical and Super-critical Pomeron behavior and the Expanding Disc. We describe the derivation of Reggeon Field Theory from QCD using infra-red analysis of the reggeon diagrams of the spontaneously broken theory. Matching the Reggeon Field Theory phase-diagram to that of lattice QCD with many fermions has significant implications for the chiral properties of continuum QCD when the number of flavors is less than the maximum allowed b… more
Date: July 21, 1987
Creator: White, A.R.
Partner: UNT Libraries Government Documents Department
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Density limits and fueling: Prepared for data base assessment, 1985-1987. [Viewgraphs]

Description: This paper contains viewgraph material assessing the density limits and fueling limits of different thermonuclear devices. Various density limits are considered with emphasis on the Murakami limit and the Hugill limit. (GSP)
Date: September 21, 1987
Creator: Greenwald, M. & Sheffield, J.
Partner: UNT Libraries Government Documents Department
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Tests of prototype SSC (Superconducting Super Collider) magnets

Description: Results are presented from tests of the third full scale development dipole magnet for the Superconducting Super Collider and from a retest of a 4.5 m model magnet of the same design mounted in an SSC cryostat. The 4.5 m magnet shows consistent quench performance between its original tests in boiling liquid helium in a vertical dewar and the current tests in forced flow helium in a horizontal cryostat. Little or no retraining is observed over several thermal cycles. The full length magnet requi… more
Date: September 21, 1987
Creator: Strait, J.; Brown, B.C.; Hanft, R.; Koepke, K.; Kuchnir, M.; Lundy, R. et al.
Partner: UNT Libraries Government Documents Department
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Kinetic theory of radiation effects

Description: To help achieve the quantitative and mechanistic understanding of these processes, the kinetic theory of radiation effects has been developed in the DOE basic energy sciences radiation effects and fusion reactor materials programs, as well as in corresponding efforts in other countries. This discipline grapples with a very wide range of phenomena and draws on numerous sub-fields of theory such as defect physics, diffusion, elasticity, chemical reaction rates, phase transformations and thermodyn… more
Date: January 21, 1987
Creator: Mansur, L.K.
Partner: UNT Libraries Government Documents Department
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A simple cantilevered mirror for focussing synchrotron radiation

Description: A large cantilevered mirror was constructed to focus the vertical divergence from a synchrotron radiation source. The advantages of this mirror are its compactness, simple bending device, simplicity of construction, and good thermal contact to structures outside the vacuum. The central portion of the mirror is supported with variable loading springs to reduce gravitational sag. The figure and thermal stability of the mirror have proven to be excellent, though the focusing is limited by the roug… more
Date: June 21, 1987
Creator: Ice, G.E. & Sparks, C.J.
Partner: UNT Libraries Government Documents Department
open access

Mirror and grating surface figure requirements for grazing incidence synchrotron radiation beamlines: Power loading effects

Description: At present, grazing incidence mirrors are used almost exclusively as the first optical element in VUV and soft x-ray synchrotron radiation beam lines. The performance of these mirrors is determined by thermal and mechanical stress-induced figure errors as well as by figure errors remaining from the grinding and polishing process. With the advent of VUV and soft x-ray undulators and wigglers has come a new set of thermal stress problems related to both the magnitude and the spatial distribution … more
Date: October 21, 1987
Creator: Hulbert, S.L. & Sharma, S.
Partner: UNT Libraries Government Documents Department
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Operational Experience With a High Speed Video Data Acquisition System in Fermilab Experiment E-687

Description: Operation of a high speed, triggerable, Video Data Acquisition System (VDAS) including a hardware data compactor and a 16 megabyte First-In-First-Out buffer memory (FIFO) will be discussed. Active target imaging techniques for High Energy Physics are described and preliminary experimental data is reported.. The hardware architecture for the imaging system and experiment will be discussed as well as other applications for the imaging system. Data rates for the compactor is over 30 megabytes/sec … more
Date: October 21, 1987
Creator: Baumbaugh, A. E.; Knickerbocker, K. L.; Baumbaugh, B. & Ruchti, R.
Partner: UNT Libraries Government Documents Department
open access

Source term experiment STEP-3 simulating a PWR severe station blackout

Description: For a severe PWR accident that leads to a loss of feedwater to the steam generators, such as might occur in a station blackout, fission product decay heating will cause a water boiloff. Without effective cooling of the core, steam will begin to oxidize the Zircaloy cladding. The noble gases and volatile fission products, such as Cs and I, that are major contributors to the radiological source term, will be released from the damaged fuel shortly after cladding failure. The accident environment w… more
Date: May 21, 1987
Creator: Simms, R.; Baker, L., Jr. & Ritzman, R. L.
Partner: UNT Libraries Government Documents Department
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