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Layout of the LER (Low Energy Ring) Arc

Description: We have recently been trying to accumulate all of the information necessary to decide on the layout of the regular curved arcs of the Low Energy Ring (LER) and there have been several ABC Notes published on different aspects of the problem. This note will describe the layout that has been derived from these considerations.
Date: October 6, 1990
Creator: Hutton, A.
Item Type: Refine your search to only Report
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Criticality assessment of LLRWDF closure

Description: During the operation of the Low Level Radioactive Waste Disposal Facility (LLRWDF), large amounts (greater than 100 kg) of enriched uranium (EU) were buried. This EU came primarily from the closing and decontamination of the Naval Fuels Facility in the time period from 1987--1989. Waste Management Operations (WMO) procedures were used to keep the EU boxes separated to prevent possible criticality during normal operation. Closure of the LLRWDF is currently being planned, and waste stabilization … more
Date: October 6, 1992
Creator: Sarrack, A. G.; Weber, J. H. & Woody, N. D.
Item Type: Refine your search to only Report
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Criticality assessment of LLRWDF closure

Description: During the operation of the Low Level Radioactive Waste Disposal Facility (LLRWDF), large amounts (greater than 100 kg) of enriched uranium (EU) were buried. This EU came primarily from the closing and decontamination of the Naval Fuels Facility in the time period from 1987--1989. Waste Management Operations (WMO) procedures were used to keep the EU boxes separated to prevent possible criticality during normal operation. Closure of the LLRWDF is currently being planned, and waste stabilization … more
Date: October 6, 1992
Creator: Sarrack, A. G.; Weber, J. H. & Woody, N. D.
Item Type: Refine your search to only Report
open access

The prospects for polarized target materials with pure carbon background

Description: None of the materials presently in common use for polarized proton targets has a pure carbon nuclear background. The alcohols and diols contain some oxygen, and the ammonia and amine-based materials contain nitrogen and/or other noncarbon species. In the latter cases the noncarbon nuclei are measurably polarized as a concomitant of the process used to polarize the hydrogen nuclei. The relative simplicity of a pure carbon background would be advantageous for most types of scattering experiments … more
Date: October 6, 1992
Creator: Hill, D.A.
Item Type: Refine your search to only Report
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The prospects for polarized target materials with pure carbon background

Description: None of the materials presently in common use for polarized proton targets has a pure carbon nuclear background. The alcohols and diols contain some oxygen, and the ammonia and amine-based materials contain nitrogen and/or other noncarbon species. In the latter cases the noncarbon nuclei are measurably polarized as a concomitant of the process used to polarize the hydrogen nuclei. The relative simplicity of a pure carbon background would be advantageous for most types of scattering experiments … more
Date: October 6, 1992
Creator: Hill, D. A.
Item Type: Refine your search to only Report
open access

Annual report on the US Department of Energy`s cultural resource activities at Colorado UMTRA Project sites for October 1991--September 1992

Description: This report summarizes the US Department of Energy`s (DOE) cultural resource studies that were undertaken in support of the DOE`s Uranium Mill Tailings Remedial Action (UMTRA) Project in the state of Colorado for the period of October 1, 1991, through September 30, 1992. This report fulfills the DOE`s obligation to provide an annual report to the state of Colorado on the status and results of cultural resource studies conducted during the above period of record. This requirement is stated in a … more
Date: October 6, 1993
Item Type: Refine your search to only Report
open access

Assessment of a magnet system combining the advantages of cable-in-conduit forced-flow and pool-boiling magnets

Description: This paper presents an idea for a magnet system that could be used to advantage in tokamaks and other fusion engineering devices. Higher performance designs, specifically newer tokamaks such as those for the international Tokamak Engineering Reactor (ITER) and Tokamak Physics Experiment (TPX) use Cable in Conduit Conductor (CICC) forced flow coils to advantage to meet field and current density requirements. Pool boiling magnets lack structural integrity to resist high magnetic forces since heli… more
Date: October 6, 1993
Creator: Slack, D.; Hassenzahl, W.; Felker, B. & Chaplin, M.
Item Type: Refine your search to only Article
open access

Catalyst and process development for synthesis gas conversion to isobutylene. Quarterly report, April 1, 1993--June 30, 1993

Description: The presence of potassium or calcium in sol gel catalysts increase the production of C{sub 4} hydrocarbon and that of methane while maintaining high activities. Characterization of catalysts using temperature programmed desorption of carbon dioxide indicates that activity and product distribution over an isosynthesis catalyst depend on its acid-base properties. Low activity was observed for catalysts with very weak basicity, and high oxygenate production for catalysts with strong basicity. An o… more
Date: October 6, 1993
Creator: Anthony, R. G. & Akgerman, A.
Item Type: Refine your search to only Report
open access

Conference summary

Description: The conference began with an introductory lecture by Bunakov. It is very appropriate that this workshop be held in Dubna as Bunakov reminded us that the experiments that motivated the current interest in the study of symmetry violation with neutrons were started here at Dubna by Alfimenkov, Pikelner, and collaborators. Bunakov discussed the fact that is the complexity of the compound nucleus that leads to large enhancement of parity violation near P-resonances and to the possibility of using st… more
Date: October 6, 1993
Creator: Seestrom, S. J.
Item Type: Refine your search to only Article
open access

Environmental implementation plan: Chapter 14, Environmental compliance tracking and data management. Revision

Description: Environmental projects, issues, and programs have become increasingly important to the Westinghouse Savannah River Company (WSRC) management and the Department of Energy (DOE). A compliance-tracking system has been developed to monitor environmental requirements and commitments because they have become increasingly complex and numerous. An Environmental Data Management (EDM) steering committee was formed in October 1987 to develop computer system solutions to environmental needs. The committee`… more
Date: October 6, 1993
Creator: Story, C. H.
Item Type: Refine your search to only Report
open access

Environmental Implementation Plan - EIP introduction

Description: Due to the commitment and participation of more than 100 professionals from site environmental coordinators, customer improvements and total quality are being incorporated into the Environmental Implementation Plan (EIP). The EIP is now a living document that communicates an overview of site environmental programs and the facility plans that are designed to protect the environment and meet changing regulatory requirements. Continuous improvement of environmental programs is enhanced through pla… more
Date: October 6, 1993
Creator: Peterson, G. L.
Item Type: Refine your search to only Report
open access

Factors fragmenting the Russian Federation

Description: This paper examines the factors that threaten the future of the Russian Federation (RF). The observations are based on a study that focused on eight republics: Mordova, Udmurtia, Tatarstan, Mari El, Bashkortostan, Kabardino-Balkaria, Buryatia, and Altay Republic. These republics were selected for their geographic and economic significance to the RF. Tatarstan, Bashkortostan, Udmurtia, and Mari El are located on important supply routes, such as the Volga River and the trans-Siberian railroad. So… more
Date: October 6, 1993
Creator: Brown, E.
Item Type: Refine your search to only Report
open access

Models for close-in atmospheric dispersion, explosive releases, and particle deposition

Description: Relatively simple models are presented to simulate close-in atmospheric dispersion, explosive releases, and particle deposition. Close-in generally refers to distances less than 50 m downwind from the source. These models assume simple gas dispersion (no chemical reactions, neutral buoyancy) and that particles behave as a gas expect they can be removed from the plume by a simple, deposition-velocity mechanism. These models have been combined into a QuickBASIC program (INEXPLC.BAS) and its PC ex… more
Date: October 6, 1993
Creator: Bloom, S. G.
Item Type: Refine your search to only Report
open access

Quench Detection and Instrumentation for the Tokamak Physics Experiment magnets

Description: The design of the Local Instrumentation & Control (I&C) System for the Tokamak Physics Experiment (TPX) superconducting PF & TF magnets is presented. The local I&C system monitors the status of the magnet systems and initiates the proper control sequences to protect the magnets from any foreseeable fault. Local I&C also stores magnet-system data for analysis and archiving. Quench Detection for the TPX magnets must use a minimum of two independent sensing methods and is allowed a detection time … more
Date: October 6, 1993
Creator: Chaplin, M. R.; Hassenzahl, W. V. & Schultz, J. H.
Item Type: Refine your search to only Article
open access

Structural Design of the Superconducting Poloidal Field Coils for the Tokamak Physics Experiment

Description: The Tokamak Physics Experiment concept design uses superconducting coils made from cable-in-conduit conductor to accomplish both magnetic confinement and plasma initiation. The Poloidal Field (PF) magnet system is divided into two subsystems, the central solenoid and the outer ring coils, the latter is focus of this paper. The eddy current heating from the pulsed operation is excessive for a case type construction; therefore, a ``no case`` design has been chosen. This ``no case`` design uses th… more
Date: October 6, 1993
Creator: O`Connor, T. G. & Zbasnik, J. P.
Item Type: Refine your search to only Article
open access

Study on current sharing phenomena observed during the testing of ITER prototype cable-in-conduit conductors in the FENIX test facility

Description: Current sharing phenomena were studied during the testing of ITER (International Thermonuclear Experimental Reactor) prototype sample conductors in the FENIX (Fusion Engineering International Experiments) test facility at the Lawrence Livermore National Laboratory. During steady-state operation in the current sharing region, voltage drops of up to 200 {mu}V were measured across the conductor. These experimental results were studied in detail using computer program CICC. Differences between the … more
Date: October 6, 1993
Creator: Lee, Y. J.; Wong, R. L. & Shen, S. S.
Item Type: Refine your search to only Article
open access

Thermo-hydraulic analysis of the TPX superconducting TF magnets

Description: The superconducting magnets in Fusion Reactors are subjected to pulsed, nuclear, and resistive heating. The thermo-hydraulic response of the helium forced-flow cooled conductors to the various heat sources is critical to magnet design and performance. Recently developed computer codes allow accurate modeling of conductor response and have been used as an aid to design of the toroidal field (TF) magnets for the Tokamak Physics eXperiment (TPX). The authors present results of design studies that … more
Date: October 6, 1993
Creator: Wong, R. L.; Zbasnik, J. P. & Hassenzahl, W. V.
Item Type: Refine your search to only Report
open access

Tokamak Physics Experiment poloidal field design

Description: The Tokamak Physics Experiment (TPX) will have a poloidal field system capable of full inductive operation poloidal for approximately a 20-s flattop and, with superconducting toroidal and poloidal field coils and non-inductive current drive, it will be capable of true steady-state operation. The poloidal field design is based on the ideal MHD equilibrium model as implemented in the TEQ code developed at LLNL. The PF coils are arranged in an up-down symmetric configuration, external to the TF co… more
Date: October 6, 1993
Creator: Bulmer, R. H.
Item Type: Refine your search to only Article
open access

Toward a surface photoelectron diffractometer: A progress report on selected advances and an assessment

Description: X-ray diffractometric determination of atomic structures in ordered bulk systems is highly automated and has wide application. By contrast, surface crystallography, whether based on photon or electron scattering, is still in a relatively early stage of development. A summary is given of recent selected highlights in efforts to make progress toward surface photoelectron diffractometry and holography by our Berkeley-Penn State group. It is concluded that an automated photoelectron diffractometer … more
Date: October 6, 1993
Creator: Shirley, D. A; Zheng, Yu; Petersen, B. L.; Hussain, Z.; Huff, W. A.; Barton, J. J. et al.
Item Type: Refine your search to only Article
open access

The TPX Cryostat Conceptual Design

Description: The TPX (Tokamak Physics Experiment) will be the first tokamak to employ both superconducting TF (toroidal field) and PF (poloidal field) magnets. Consequently, the entire device is located within an evacuated cryostat to provide the necessary thermal barrier between the ambient temperature test cell and the magnets that are cooled by supercritical liquid helium at 5{degrees}K. This paper describes the cryostat design requirements, design concepts, and the cryostat fabrication and installation.
Date: October 6, 1993
Creator: Ravenscroft, D.; Posey, A.; Heitzenroeder, P. & Brown, T.
Item Type: Refine your search to only Article
open access

The TPX magnet R&D program

Description: A unique feature of the magnet system for the Tokamak Physics Experiment (TPX) is that all the magnets are superconducting. With the exception of the outer poloidal coils, the magnet system uses Nb{sub 3}Sn cable-in-conduit conductor; the outer poloidal coils use Nb-Ti cable-in-conduit conductor. A Research and Development program is needed to ensure that the materials, processes, and systems are available to support the fabrication and operation of these magnets. The authors describe their pla… more
Date: October 6, 1993
Creator: Zbasnik, J. P.; Hassenzahl, W. V.; Chaplin, M. R.; Slack, D. S.; Lang, D. D.; Schultz, J. H. et al.
Item Type: Refine your search to only Article
open access

Two-gigawatt burst-mode operation of the intense microwave prototype (IMP) free-electron laser (FEL) for the microwave tokamak experiment (MTX)

Description: The MTX explored the plasma heating effects of 140 GHz microwaves from both Gyrotrons and from the IMP FEL wiggler. The Gyrotron was long pulse length (0.5 seconds maximum) and the FEL produced short-pulse length, high-peak power, single and burst modes of 140 GHZ microwaves. Full-power operations of the IMP FEL wiggler were commenced in April of 1992 and continued into October of 1992. The Experimental Test Accelerator H (ETA-II) provided a 50-nanosecond, 6-MeV, 2--3 kAmp electron beam that wa… more
Date: October 6, 1993
Creator: Felker, B.; Allen, S. & Bell, H.
Item Type: Refine your search to only Article
open access

Acceptance test report for 241-AW process air system

Description: The acceptance test procedure (ATP) for the compressed air system at building 241-AW-273 was completed on March 11, 1993. The system was upgraded to provide a reliable source of compressed air to the tank farm. The upgrade included the demolition of the existing air compressor and associated piping, as well as the installation of a new air compressor with a closed loop cooling system. A compressed air cross-tie was added to allow the process air compressor to function as a back-up to the existi… more
Date: October 6, 1994
Creator: Kostelnik, A. J.
Item Type: Refine your search to only Report
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