UNT Libraries Government Documents Department - 231 Matching Results

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1-2 GeV synchrotron radiation facility at Lawrence Berkeley Laboratory

Description: The Advanced Light Source (ALS), a dedicated synchrotron radiation facility optimized to generate soft x-ray and vacuum ultraviole (XUV) light using magnetic insertion devices, was proposed by the Lawrence Berkeley Laboratory in 1982. It consists of a 1.3-GeV injection system, an electron storage ring optimized at 1.3 GeV (with the capability of 1.9-GeV operation), and a number of photon beamlines emanating from twelve 6-meter-long straight sections, as shown in Fig. 1. In addition, 24 bending-… more
Date: October 1, 1985
Creator: Berkner, K.H.
Item Type: Refine your search to only Article
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6 GeV light source project cost estimating procedure

Description: To maintain uniformity in estimating the cost requirements of the various components of the 6 GeV Light Source, the following procedure will be used by all the task groups. The procedure uses a Work Breakdown Structure (VBS) to break down the project into manageable, easy to estimate, components. The project is first broken down into major tasks or categories. Then each major division is continuously subdivided until the desired level of detail is achieved. This can be shown best by using the e… more
Date: October 23, 1985
Item Type: Refine your search to only Report
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300-Element Silicon-Lithium Position-Sensitive Imaging Detector for Angiography

Description: Silicon lithium-drifted (Si(Li)) detectors 150 mm long, 10 mm wide and 5 mm thick with 300 individual elements have been fabricated as imaging detectors for noninvasive studies of human coronary arteries using 33 keV x-rays from a synchrotron radiation beamline. This detector is an extension of earlier work on 30 mm long devices with initially 30 and later 60 elements. The detector fabrication details are discussed highlighting problems in uniform lithium-ion compensation. The device structure … more
Date: October 1, 1985
Creator: Walton, J. T.; Sommer, H. A.; Thompson, A. C.; Hughes, E. B. & Zeman, H. D.
Item Type: Refine your search to only Article
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18t Resistive Magnet Development. Conceptual Design Second Annual Report

Description: This report documents the work performed on a normal conducting magnet during fiscal year 1985. Emphasis, during the study, was on refinement of the structural design and optimization of the coil current density distribution for either maximum field generation or minimum power consumption. The results have shown that one can generate a 4.4 tesla field using 6.14 megawatts or 3.1 tesla at 1.43 megawatts. The structural design has been modified to stiffen the outer turn of the conductor. The modi… more
Date: October 1, 1985
Creator: Agarwal, K. L.; Burgeson, J. E.; Gurol, H.; Mancuso, A. & Michels, P. H.
Item Type: Refine your search to only Report
open access

3Q120 Low Gradient Behaviour

Description: Three 3Q120 magnets--representative of those in the AP 1 line--have been measured with a harmonics probe at MDTF at both low (0-48 A) and high (to >= 400 A). The intent of the measurements was to learn their behavior at the low gradients necessary to transport 8 Gev antiprotons back through the AP 1 line for injection into the Main Ring (and subsequently the superconducting ring--see Ref. 1). Many of the measurements have been preceded by remnant field biasing ramps to 148, 270, 295, or 405 … more
Date: October 1, 1985
Creator: Wehmann, A.
Item Type: Refine your search to only Report
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3Q120 Low Gradient Behaviour-Companion Report

Description: Three 3Q120 magnets--representative of those in the AP 1 line--have been measured with a harmonics probe at MDTF at both low (0-48 A) and high (to >= 400 A). The intent of the measurements was to learn their behavior at the low gradients necessary to transport 8 Gev antiprotons back through the AP 1 line for injection into the Main Ring. This paper describes some aspects of the measurements that were not included in the main paper, in order to keep the size of the main report reasonably smal… more
Date: October 1, 1985
Creator: Wehmann, A.
Item Type: Refine your search to only Report
open access

5f-band narrowing in UX/sub 3/B compounds: evidence from resonant photoemission. [X = Ru or Rh]

Description: Resonant photoemission at the uranium 5d disorption edge has been used to determine the 5f emission in URu/sub 3/, URh/sub 3/, URu/sub 3/B, and URh/sub 3/B polycrystalline samples. The observed 5f band narrowing (from 2.0 to 1.5 eV as one goes from URu/sub 3/ to URu/sub 3/B, and from 2.8 to 1.1 eV for URh/sub 3/ and URh/sub 3/B respectively) is explained as due to a decrease in the f-d hybridization between uranium and rhodium (ruthenium) atoms.
Date: October 1985
Creator: Zolnierek, Z.; Arko, A. J. & Koelling, D. D.
Item Type: Refine your search to only Article
open access

Accelerators for heavy ion fusion

Description: Large fusion devices will almost certainly produce net energy. However, a successful commercial fusion energy system must also satisfy important engineering and economic constraints. Inertial confinement fusion power plants driven by multi-stage, heavy-ion accelerators appear capable of meeting these constraints. The reasons behind this promising outlook for heavy-ion fusion are given in this report. This report is based on the transcript of a talk presented at the Symposium on Lasers and Parti… more
Date: October 1, 1985
Creator: Bangerter, R.O.
Item Type: Refine your search to only Report
open access

Aging degradation of cast stainless steel

Description: A program is being conducted to investigate the significance of in-service embrittlement of cast-duplex stainless steels under light-water reactor operating conditions. Data from room-temperature Charpy-impact tests for several heats of cast stainless steel aged up to 10,000 h at 350, 400, and 450/sup 0/C are presented and compared with results from other studies. Microstructures of cast-duplex stainless steels subjected to long-term aging either in the laboratory or in reactor service have bee… more
Date: October 1, 1985
Creator: Chopra, O. K. & Chung, H. M.
Item Type: Refine your search to only Article
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Analysis of /sup 81/Kr in groundwater using laser resonance ionization spectroscopy

Description: A new analytical technique based on resonant ionization of krypton with a vacuum ultraviolet (VUV) laser source was used to determine low-level /sup 81/Kr concentrations in groundwater. The long half-life (210,000 years) and low concentration (1.3 x 10/sup 3/ /sup 81/Kr atoms per liter of modern water at 10/sup 0/C) make the detection of /sup 81/Kr by radioactive counting techniques extremely difficult. In this method, krypton gas was removed from water taken from an underground Swiss aquifer u… more
Date: October 1, 1985
Creator: Kramer, S. D.; Hurst, G. S.; Chen, C. H.; Payne, M. G.; Allman, S. L.; Phillips, R. C. et al.
Item Type: Refine your search to only Article
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Application of Hardy's multiquadric interpolation to hydrodynamics

Description: Hardy's multiquadric interpolation (MQI) scheme is a global, continuously differentiable interpolation method for solving scattered data interpolation problems. It is capable of producing monotonic, extremely accurate interpolating functions, integrals, and derivatives. Derivative estimates for a variety of one and two-dimensional surfaces were obtained. MQI was then applied to the spherical blast wave problem of von Neumann. The numerical solution agreed extremely well with the exact solution.… more
Date: October 1, 1985
Creator: Kansa, E. J.
Item Type: Refine your search to only Article
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Assessment of the important radionuclides in nuclear waste

Description: The relative importance of the various radionuclides contained in nuclear waste has been assessed by consideration of (1) the quantity of each radionuclide present, (2) the Environmental Protection Agency`s release limits for radionuclides, (3) how retardation processes such as solubility and sorption affect radionuclie transport, and (4) the physical and chemical forms of radionuclides in the waste. Three types of waste were reviewed: spent fuel, high-level waste, and defense high-level waste.… more
Date: October 1, 1985
Creator: Kerrisk, J.F.
Item Type: Refine your search to only Report
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Band structure of UO/sub 2/: an angle resolved and resonant photoemission study

Description: A detailed study of angle resolved photoemission of UO/sub 2/ <100> in the normal emission configuration is presented. The results are compared to a semirelativistic LAPW band calculation with the actual calculated empty bands used in the data reduction. Excellent agreement is found with calculations both for filled states as well as critical points in the empty states with no adjustment of bands. f-p hybridization is found at the leading edge of the valence band and not at the bottom of the va… more
Date: October 1, 1985
Creator: Arko, A. J.; Koelling, D. D.; Boring, A. M.; Ellis, W. P. & Cox, L. E.
Item Type: Refine your search to only Article
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Beta-delayed fission calculations for the astrophysical r-process

Description: We discuss RPA calculations of the Gamow-Teller properties of neutron-rich nuclei to study the effect of ..beta..-delayed fission and neutron emission on the production of Th, U and Pu chronometric nuclei in the astrophysical r-process. We find significant differences in the amount of ..beta..-delayed fission when compared with the recent calculations of Thielemann et al. (1983). In the simplest case of a constant abundance along the r-process path, however, the inferred production ratios in bo… more
Date: October 9, 1985
Creator: Meyer, B. S.; Howard, W. M.; Mathews, G. J.; Moeller, P. & Takahashi, K.
Item Type: Refine your search to only Article
open access

Betatron motion and optical deflection in free electron lasers

Description: Transverse displacement of the electron beam at input to the wiggler induces betatron oscillation, imparting a sinusoidal transverse displacement to the gain medium seen by the optical beam. As the light propagates down this ''rippled'' medium it is guided by the dispersion, thereby acquiring some transverse sinusoidal displacement. At output from the wiggler the optical beam in general has acquired some transverse component of velocity, that is, it propagates off-axis. As the e-beam displaceme… more
Date: October 6, 1985
Creator: Karr, T.J.
Item Type: Refine your search to only Report
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Boise geothermal district heating system

Description: This document describes the Boise geothermal district heating project from preliminary feasibility studies completed in 1979 to a fully operational system by 1983. The report includes information about the two local governments that participated in the project - the City of Boise, Idaho and the Boise Warm Springs Water District. It also discusses the federal funding sources; the financial studies; the feasibility studies conducted; the general system planning and design; design of detailed syst… more
Date: October 1, 1985
Creator: Hanson, Phillip J.
Item Type: Refine your search to only Report
open access

Business developments of nonthermal solar technologies

Description: Information on the developments of nonthermal solar technologies is presented. The focus is on the success of wind energy conversion systems (WECS) and photovoltaics. Detailed information on the installed generating capacity, market sectors, financing sources, systems costs and warranties of WECS and photovoltaic systems is summarized. (BCS)
Date: October 1, 1985
Creator: Smith, S.A.; Watts, R.L. & Williams, T.A.
Item Type: Refine your search to only Report
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BWR pipe crack and weld clad overlay studies

Description: This paper presents results on (a) the influence of simulated BWR environments and temperature on the intergranular-stress-corrosion cracking (IGSCC) susceptibility of sensitized stainless steels (SS), (b) the stress-corrosion susceptibility of alternative piping materials, (c) analysis of field components to assess the effectiveness of in-service inspection techniques and the in-reactor performance of weld overlay repairs, and (d) finite-element analyses and experimental measurement of residua… more
Date: October 1, 1985
Creator: Shack, W.J.; Kassner, T.F.; Maiya, P.S.; Park, J.Y.; Ruther, W.E. & Rybicki, E.F.
Item Type: Refine your search to only Article
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Cascade: a high-efficiency ICF power reactor

Description: Cascade attains a net power-plant efficiency of 49% and its cost is competitive with high-temperature gas-cooled reactor, pressurized-water reactor, and coal-fired power plants. The Cascade reactor and blanket are made of ceramic materials and activation is 6 times less than that of the MARS Tandem Mirror Reactor operating at comparable power. Hands-on maintenance of the heat exchangers is possible one day after shutdown. Essentially all tritium is recovered in the vacuum system, with the remai… more
Date: October 31, 1985
Creator: Pitts, John H.
Item Type: Refine your search to only Article
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Catalytic gasification of bagasse for the production of methanol

Description: The purpose of the study was to evaluate the technical and economic feasibility of catalytic gasification of bagasse to produce methanol. In previous studies, a catalytic steam gasification process was developed which converted wood to methanol synthesis gas in one step using nickel based catalysts in a fluid-bed gasifier. Tests in a nominal 1 ton/day process development unit (PDU) gasifier with these same catalysts showed bagasse to be a good feedstock for fluid-bed gasifiers, but the catalyst… more
Date: October 1, 1985
Creator: Baker, E.G.; Brown, M.D. & Robertus, R.J.
Item Type: Refine your search to only Report
open access

CDC field mapping device - ''ROTOTRACK''

Description: A field mapping device for the magnet of the Collider Detector at Fermilab (CDF) was constructed. The device was used for extensive study of the CDF magnetic field distribution. The mechanical and electrical features of the device, as well as the data acquisition system and software, are described. The mechanical system was designed so that the errors on the position and angle of the probe were +-0.75 mm and +-1 mrad, respectively.
Date: October 1985
Creator: Yamada, R.; Hawtree, J.; Kaczar, K.; Leverence, R.; McGuire, K.; Newman-Holmes, C. et al.
Item Type: Refine your search to only Report
open access

Characterization of the solid, airborne materials created when UF/sub 6/ reacts with moist air flowing in single-pass mode

Description: A series of experiments has been performed in which UF/sub 6/ was released into flowing air in order to characterize the solid particulate material produced under non-static conditions. In two of the experiments, the aerosol was allowed to stagnate in a static chamber after release and examined further but in the other experiments characterization was done only on material collected a few seconds after release. Transmission electron microscopy and mass measurement by cascaded impactor were used… more
Date: October 1, 1985
Creator: Pickrell, P. W.
Item Type: Refine your search to only Report
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