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Particle identification in ultrarelativistic nuclear collisions

Description: The role of particle identification (PID) in both fixed-target and colliding-beam studies of ultrarelativistic nuclear (URN) collisions is examined. The demands placed on the PID systems by peculiarities of URN collisions, such as large multiplicities and the need for simultaneous measurement of a number of observables, are discussed. A variety of PID techniques are reviewed, with emphasis on their applicability and efficiency in the environment of such collisions. Two examples of PID as incorp… more
Date: April 1, 1986
Creator: DiGiacomo, N.J.
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Partner: UNT Libraries Government Documents Department
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Two exercises in supersymmetry: a low-energy supergravity model and free string field theory

Description: The new features of a supersymmetric standard model in the presence of heavy families are studied. The minimal set of Higgs fields, the desert between the electroweak and the grand unification scale and perturbative values of the dimensionless parameters throughout this region are assumed. Using the numerical as well as the approximate analytic solution of the renormalization group equations, the evolution of all the parameters of the theory are studied in the case of large Yukawa couplings for… more
Date: September 1, 1986
Creator: Preitschopf, C.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Proceedings of the LAMPF workshop on physics with polarized nuclear targets

Description: Topics of discussion included static and dynamic methods for polarizing nuclei, proton and pion nucleus scattering experiments, and possible future experiments at LAMPF. Separate abstracts were prepared for 11 papers in this report. (DWL)
Date: August 1, 1986
Creator: Burleson, G.; Gibbs, W.; Hoffmann, G.; Jarmer, J. J. & Tanaka, N. (eds.)
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Partner: UNT Libraries Government Documents Department
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Analysis of the results of the Midland PRA

Description: This paper presents the results of a limited review of the Midland PRA (MPRA), aimed at facilitating regulatory analyses and at providing insights into safety related plant failures. In particular, stress was laid on the root causes of accident sequences, particularly their failure modes, viz., hardware, human, maintenance, test, and repair. Because this information was difficult to extract in this detailed and sophisticated PRA (and in certain others) a special algorithm was developed to displ… more
Date: January 1, 1986
Creator: Bozoki, G. & Teichmann, T.
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Partner: UNT Libraries Government Documents Department
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Use of molybdenum ion source electrodes at RTNS-II

Description: Reports are reported for an ongoing effort to optimize D+ beam production by the MATS-III ion source used at RTNS-II. The three seven-aperture electrodes, originally consisting of water-cooled copper, have now been tested using uncooled molybdenum and with water cooling on the second (decel) electrode only. Details of the change, the results of the testing, and the benefits in operation, performance and cost are given.
Date: September 29, 1986
Creator: Massoletti, D.J.; Harter, G.A. & Heikkinen, D.W.
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Partner: UNT Libraries Government Documents Department
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Manipulator comparative testing program

Description: The Manipulator Comparative Testing Program examined differences among manipulator systems from the United States and Japan. The manipulator systems included the Meidensha BILARM 83A, the Model M-2 of Central Research Laboratories Division of Sargent Industries (CRL), and the GCA Corporation PaR Systems Model 6000. The site of testing was the Remote Operations Maintenance Demonstration (ROMD) facility, operated by the Fuel Recycle Division in the Consolidated Fuel Reprocessing Program at the Oa… more
Date: January 1, 1986
Creator: Draper, J. V.; Handel, S. J.; Sundstrom, E.; Herndon, J. N.; Fujita, Y. & Maeda, M.
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Partner: UNT Libraries Government Documents Department
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Construction and testing of the Mirror Fusion Test Facility magnets

Description: This paper describes the construction and testing of the Mirror Fusion Test Facility superconducting magnet set. Construction of the first Yin Yang magnet was started in 1978. And although this particular magnet was later modified, the final construction of these magnets was not completed until 1985. When completed these 42 magnets weighed over 1200 tonnes and had a maximum stored energy of approximately 1200 MJ at full field. Together with power supplies, controls and liquid nitrogen radiation… more
Date: August 1, 1986
Creator: Kozman, T.; Shimer, D.; VanSant, J. & Zbasnik, J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Physics of antimatter-matter reactions for interstellar propulsion

Description: At the stage of the antiproton-nucleon annihilation chain of events relevant to propulsion the annihilation produces energetic charged pions and gamma rays. If annihilation occurs in a complex nucleus, protons, neutrons, and other nuclear fragments are also produced. The charge, number, and energy of the annihilation products are such that annihilation rocket engine concepts involving relatively low specific impulse (I/sub sp/ approx. = 1000 to 2000 s) and very high I/sub sp/ (3 x 10/sup 7/ s) … more
Date: August 22, 1986
Creator: Morgan, D.L. Jr.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Magnetic measurements of the transuranium elements. Progress report, January 1-December 31, 1986

Description: Magnetic measurements have been made on polycrystalline CfCl/sub 3/ in both a hexagonal and orthorhombic crystal form. The magnetic properties were studied as a function of crystal structure by converting the same sample back and forth from one form to the other. In a continuation of a study of the magnetic transition temperature as a function of actinide-actinide separation of the curium pnictide series we have undertaken magnetic measurements on curium bismuthide during this contract period. … more
Date: September 1, 1986
Creator: Nave, S.E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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In-Vitro and in-Vivo Characterization of Ruthenium-Bleomycin Compared to Cobalt- and Copper-Bleomycin

Description: Bleomycin (BLM) has undergone extensive investigation both as a cancer chemotherapeutic agent, and as a carrier for radionuclides for tumor imaging. The available methods or the radionuclides used, however, have had limited effectiveness. Although labeling of BLM with /sup 103/Ru has been reported earlier, we carried out a study to develop a more reproducible method of labeling particularly for use with Brookhaven Linac Isotope Producer produced /sup 97/Ru. Ruthenium-97 has favorable physical p… more
Date: January 1, 1986
Creator: Shao, H. S.; Meinken, G. E.; Srivastava, S. C.; Slosman, D.; Sacker, D. F.; Som, P. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Radiation-induced segregation in HT-9 martensitic steel

Description: Miniature notched-bar specimens of normalized and tempered HT-9 were neutron irradiated to approx.13 dpa and broken at liquid nitrogen temperatures in a UHV chamber. Fracture surfaces were analyzed using scanning Auger electron spectroscopy. Following irradiation at 410/sup 0/C, the fracture surface contained a small number of large relatively smooth facets, which are thought to be prior austenite grain boundaries. Strong segregation of Ni, Cr, Si, and P was detected at these surfaces, the rema… more
Date: January 1, 1986
Creator: Clausing, R.E.; Heatherly, L.; Faulkner, R.G.; Rowcliffe, A.F. & Farrell, K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Habitat Evaluation and Monitoring in the Columbia River Basin, Final Report.

Description: The law established the Northwest Power Planning Council to prepare and adopt a regional conservation and electric power plan, and a program to protect, mitigate, and enhance fish and wildlife. The objectives are the development of regional plans and programs related to energy conservation, renewable resources, other resources, and protecting mitigating, and enhancing fish and wildlife resources and to protect, mitigate, and enhance the fish and wildlife, including related spawning grounds and … more
Date: December 1, 1986
Creator: Everson, Larry B.; Campbell, Charles J.; Craven, Richard E. & Welsh, Thomas L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Calculation of three-dimensional MHD equilibria with islands and stochastic regions

Description: A three-dimensional MHD equilibrium code is described that does not assume the existence of good surfaces. Given an initial guess for the magnetic field, the code proceeds by calculating the pressure-driven current and then by updating the field using Ampere's law. The numerical algorithm to solve the magnetic differential equation for the pressure-driven current is described, and demonstrated for model fields having islands and stochastic regions. The numerical algorithm which solves Ampere's … more
Date: August 1, 1986
Creator: Reiman, A. & Greenside, H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Insights from an overview of four PRAs

Description: This paper summarizes the findings of an investigation of four probabilistic risk assessments (PRAs), those for Millstone 3, Seabrook, Shoreham, and Oconee 3, performed by Brookhaven National Laboratory (BNL) for the Reliability and Risk Assessment Branch of the US Nuclear Regulatory Commission (NRC). This group of four PRAs was subjected to an overview process with the basic goal of ascertaining what insights might be gained (beyond those already documented within the individual PRAs) by an in… more
Date: January 1, 1986
Creator: Fitzpatrick, R.; Arrieta, L.; Teichmann, T. & Davis, P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Control room habitability study: findings and recommendations

Description: The Advisory Committee on Reactor Safeguards (ACRS) has raised a number of concerns related to control room habitability and has recommended actions which they believe could alleviate these concerns. As a result of the ACRS's concerns, the US Nuclear Regulatory Commission's (NRC) Office of Nuclear Reactor Regulation (NRR) in conjunction with the Offices of Research and Inspection and Enforcement, and the NRC regional offices, embarked upon a program to reevaluate Control Room Habitability. Argo… more
Date: January 1, 1986
Creator: Driscoll, J.W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Massive sulfide deposits and hydrothermal solutions: incremental reaction modeling of mineral precipitation and sulfur isotopic evolution

Description: Incremental reaction path modeling of chemical and sulfur isotopic reactions occurring in active hydrothermal vents on the seafloor, in combination with chemical and petrographic data from sulfide samples from the seafloor and massive sulfide ore deposits, allows a detailed examination of the processes involved. This paper presents theoretical models of reactions of two types: (1) adiabatic mixing between hydrothermal solution and seawater, and (2) reaction of hydrothermal solution with sulfide… more
Date: January 1, 1986
Creator: Janecky, D.R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Nuclear alkali metal Rankine power systems for space applications

Description: Nucler power systems utilizing alkali metal Rankine power conversion cycles offer the potential for high efficiency, lightweight space power plants. Conceptual design studies are being carried out for both direct and indirect cycle systems for steady state space power applications. A computational model has been developed for calculating the performance, size, and weight of these systems over a wide range of design parameters. The model is described briefly and results from parametric design st… more
Date: August 1, 1986
Creator: Moyers, J. C. & Holcomb, R. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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LFCM vitrification technology. Quarterly progress report, January-March 1986

Description: This report is compiled by the Nuclear Waste Treatment Progrqam and the Hanford Waste Vitrification Program at Pacific Northwest Laboratory to document progress on liquid-fed ceramic melter (LFCM) vitrification technology. Progress in the following technical subject areas during the second quarter of FY 1986 is discussed: melting process chemistry and glass development, feed preparation and transfer systems, melter systems, canister filling and handling systems, off-gas systems, and process/pro… more
Date: September 1, 1986
Creator: Burkholder, H. C. & Minor, J. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Feasibility of laser pumping with neutron fluxes from present-day large tokamaks

Description: The minimum fusion-neutron flux needed to observe nuclear-pumped lasing with tokamaks can be reduced substantially by optimizing neutron scattering into the laser cell, located between adjacent toroidal-field coils. The laser lines most readily pumped are probably the /sup 3/He-Ne lines at 0.633 ..mu.. and in the infrared, where the /sup 3/He-Ne gas is excited by energetic ions produced in the /sup 3/He(n,p)T reaction. These lines are expected to lase at the levels of D-T neutron flux foreseen … more
Date: August 1, 1986
Creator: Jassby, D. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Quark deconfinement and high energy nuclear collisions

Description: Statistical QCD predicts that with increasing density, strongly interacting matter will undergo a transition to a plasma of deconfined quarks and gluons. High energy heavy ion collisions are expected to permit experimental studies of this transition and of the predicted new state of matter. 22 refs., 6 figs.
Date: July 1, 1986
Creator: Satz, H.
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Partner: UNT Libraries Government Documents Department
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Plutonium isotopic analysis of highly enriched mixed oxides

Description: We investigated the analysis method used by the International Atomic Energy Agency (IAEA) to determine the plutonium isotopic composition of highly enriched mixed oxides (MOX). The IAEA currently uses the Cicero multichannel analyzer and the IAEAPU algorithm for its analysis. In our investigation the plutonium isotopic measurements were found to be good for PuO/sub 2/ powder or low-enriched MOX, but acceptable for highly enriched MOX in IAEA special nuclear material (SNM) accountability applica… more
Date: August 1, 1986
Creator: Clement, S. D. & Augustson, R. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Advanced accelerator research at Argonne

Description: A facility with which to experimentally measure methods of advanced acceleration is at the point of completion at Argonne National Laboratory. The new facility consists a system which produces pulse ''doublets'' of energetic electrons, pulse shaping hardware, a space for experimental apparatus, and a high resolution spectrometer. The leading 21 MeV pulse in a doublet can contain up to 15 nano-coulombs of charge and can be adjusted to be from 6 to over 100 pic-seconds in length. The trailing dou… more
Date: January 1, 1986
Creator: Konecny, R.; MacLachlan, J.; Norem, J.; Ruggiero, A.; Schoessow, P. & Simpson, J.
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Partner: UNT Libraries Government Documents Department
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Multiple track Doppler-shift spectroscopy system for TFTR neutral beam injectors

Description: A Doppler-shift spectroscopy system has been installed on the TFTR neutral beam injection system to measure species composition during both conditioning and injection pulses. Two intensified vidicon detectors and two spectrometers are utilized in a system capable of resolving data from up to twelve ion sources simultaneously. By imaging the light from six ion sources onto one detector, a cost-effective system has been achieved. Fiber optics are used to locate the diagnostic in an area remote fr… more
Date: September 1, 1986
Creator: Kamperschroer, J. H.; Kugel, H. W.; Reale, M. A.; Hayes, S. L.; Johnson, G. A.; Lowrance, J. L. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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RIMS diagnostics for laser desorption/laser ablation

Description: Laser desorption mass spectrometry is a useful method for interrogating materials and events at or near surfaces. Laser desorption/ablation combined with Resonance Ionization Mass Spectrometry (RIMS) provides a powerful tool to obtain information on chemical composition and speciation and, in some cases, internal and translational energy distributions. The application of this technique to the interrogation of materials and interfaces is discussed for several systems, including the analysis of c… more
Date: January 1, 1986
Creator: Apel, E. C.; Nogar, N. S.; Miller, C. M. & Estler, R. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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