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Approach to decision modeling for an ignition test reactor

Description: A comparison matrix decision model is applied to candidates for a D-T ignition tokamak (TNS), including assessment of semi-quantifiable or judgemental factors as well as quantitative ones. The results show that TNS is mission-sensitive with a choice implied between near-term achievability and reactor technology.
Date: September 30, 1977
Creator: Howland, H.R. & Varljen, T.C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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ORNL TNS program: microwave start-up of tokamak plasmas near electron cyclotron and upper hybrid resonances

Description: The scenario of toroidal plasma start-up with microwave initiation and heating near the electron cyclotron frequency is suggested and examined here. We assume microwave irradiation from the high field side and an anomalously large absorption of the extraordinary waves near the upper hybrid resonance. The dominant electron energy losses are assumed to be due to magnetic field curvature and parallel drifts, ionization of neutrals, cooling by ions, and radiation by low Z impurities. It is shown by… more
Date: December 1, 1977
Creator: Peng, Y. K. M. & Borowski, S. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Plasma engineering considerations for an ignition test reactor: The Next Step (TNS) beyond TFTR

Description: Plasma engineering studies were done to establish credible ranges of physics parameters to be integrated into the TNS study program. The following are reviewed: high ..beta.. equilibrium, high density, basic assumptions, zero-dimensional scaling, one-dimensional effects, equilibrium evolution, injection scenario, MHD stability limits, equilibrium fields and flexibility. (MHR)
Date: January 1, 1977
Creator: Peng, Y. K. M.; Callen, J. D.; Marcus, F. B.; McNally, J. R., Jr.; Mense, A. T.; Uckan, N. A. et al.
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Partner: UNT Libraries Government Documents Department
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Engineering design problems of TFTR

Description: Design of the TFTR poses special engineering problems as a result of constraints posed by the physics requirements of the fusion experiments. The ratio of plasma major and minor radii and the associated magnetic field strength required to achieve desired plasma conditions, the required confinement time, the two-component plasma concept, the complications of providing shielding from the 14 MeV neutrons and the necessity to control the inventory of tritium fuel, all constitute problems which, oft… more
Date: January 1, 1977
Creator: Lee, D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Draft program plan for TNS: The Next Step after the Tokamak Fusion Test Reactor. Part II. R and D needs assessment

Description: The information contained in this document represents the brief but intensive efforts of the Oak Ridge TNS Program Team to answer the following questions: (1) Is there an adequate basis of R and D support for the TNS program as a central, ambitious goal for the fusion program. (2) What are the principal gaps in the current and projected R and D program. (3) What must be done to permit operation of TNS in the mid 1980s. The findings of our preliminary study provide these answers to the questions… more
Date: December 1, 1977
Creator: Roberts, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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ISX objectives and physics

Description: The ISX-B program has achieved average beta values of 1.8% in a relatively clean plasma with neutral beam injection power greater than 10 times ohmic power input. Total beta has increased smoothly with beam power so far and exceeded theoretical limits with no indication that ballooning or any other instability is significantly increasing the energy loss rate.
Date: January 1, 1979
Creator: Mihalczo, J.T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Plasma engineering innovations for the ORNL TNS reactor

Description: Recent plasma engineering studies have ascertained a viable concept for The Next Step (TNS) reactor based on medium toroidal fields between 4 T and 7 T at the plasma center, plasma ..beta.. values up to 10 percent and averaged densities between 0.6 x 10/sup 14/ cm/sup -3/ and 2.5 x 10/sup 14/ cm/sup -3/. Plasma engineering innovations that can substantially reduce the size, cost, and complexity of the TNS reactor have been explored and are summarized. It is shown that the previously anticipated… more
Date: January 1, 1977
Creator: Peng, Y. K. M.; Houlberg, W. A.; Mense, A. T.; Rome, J. A. & Uckan, N. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Oak Ridge TNS Program: system description manual

Description: This document provides a systems description of the Reference Design for The Next Step (TNS) evolved at Oak Ridge National Laboratory (ORNL) during FY 1978. The description is presented on the basis of 24 individual device and facility systems. Additional information on these systems, the Reference Design, and the FY 1978 Oak Ridge TNS activities can be found in the associated technical memoranda, ORNL/TM-6720 and ORNL/TM-6722--ORNL/TM-6733.
Date: May 1, 1979
Creator: Reid, R. L.; Becraft, W. R.; Brown, T. G.; Peng, Y. K. M.; Sardella, C.; Shannon, T. E. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Survey of Modes and Their Effects in ORMAK, ISX-A, and ISX-B

Description: A comparison of some features of the three tokamaks is given. The ORMAK and ISX-A have ceased operation. The ISX-B has completed a checkout phase with studies of circular, ohmically heated plasmas in which it performed much like ISX-A. Shaped and injection heated plasmas are being studied. Diagnostics for mode structures were the usual Mirnov loops for approx.B/sub theta/ and collimated soft x-ray detectors for the internal fluctuations approx.X. The approx.X measurements on ISX-A, and thus far… more
Date: February 14, 1979
Creator: Dunlap, J. L.; Burris, R. D.; Harris, J. H.; Navarro, A. P. & Pare, V. K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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STARFIRE: A Commercial Tokamak Reactor

Description: The STARFIRE Project was initiated in May 1979, with the goal of completing the design study by October 1980. The purpose of this paper is to present an overview of the major parameters and design features that have been tentatively selected for STARFIRE.
Date: January 1, 1979
Creator: Baker, C. C.; Abdou, M. A.; DeFreece, D. A.; Trachael, A. A.; Graumann, D. & Kokoszenski, J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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US tokamak research

Description: Current experiments on ISX-B, Alcator C, PDX, and PLT respectively address the four areas of principal concern in the development of a tokamak reactor: optimization of MHD-stability at high ..beta..-values; achievement of high n tau/sub E/; preservation of plasma purity; and development of effective techniques for achieving high plasma temperatures. The neutral-beam-heated ISX-B is the first tokamak device to have reached a ..beta..-level of approximately 3%, thus exploring - or even challengin… more
Date: October 1, 1979
Creator: Furth, H.P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Review of the ISX-B experimental program

Description: The ISX-B tokamak is a modestly sized device that is designed to explore questions closely related to the design of future tokamak devices, such as the Engineering Test Facility (ETF). The major program emphasis is on high-..beta.. plasma operation using neutral beams to heat plasmas with noncircular cross sections. In addition, substantial efforts are under way or planned in the areas of plasma-wall interactions, coated limiter studies, electron-cyclotron heating, ripple injection, impurity fl… more
Date: January 1, 1979
Creator: Saltmarsh, M.J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Oak Ridge TNS Program: technical needs assessment

Description: This document highlights the technical requirements of the key subsystems of the Reference Design for The Next Step (TNS) and presents a preliminary assessment of the adequacy of the technical capabilities available to satisfy these requirements. Additional information on the Reference Design and the FY 1978 TNS Program activities can be found in the associated technical memoranda, ORNL/TM-6720, ORNL/TM-6721, and ORNL/TM-6723 - ORNL/TM-6733.
Date: August 1, 1979
Creator: Becraft, W.R.; Brown, T.G. & Reid, R.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Starfire: a commercial tokamak reactor. [Overview of major parameters]

Description: The basic objective of the STARFIRE Project is to develop a design concept for a commercial tokamak fusion electric power plant based on the deuterium/tritium/lithium fuel cycle. The key technical objective is to develop the best embodiment of the tokamak as a power reactor consistent with credible engineering solutions to design problems. Another key goal of the project is to give careful attention to the safety and environmental features of a commercial fusion reactor. The STARFIRE Project wa… more
Date: January 1, 1979
Creator: Baker, C. C.; Abdou, M. A.; Trachsel, C. A.; Graumann, D. & Kokoszenski, J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Oak Ridge TNS Program: summary of FY 1978 activities

Description: The Next Step (TNS) represents the stage of fusion energy development in which the major emphasis is on engineering testing and demonstration. In this document, the activities of the Oak Ridge TNS Program for FY 1978 are described and summarized. The Reference Design that has evolved from these activities is described, its operating characteristics are examined, and project planning issues are considered. Major conclusions from the FY 1978 effort are stated.
Date: July 1, 1979
Creator: Steiner, D.; Becraft, W.R. & Brown, T.G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Mission statement for the Engineering Test Facility

Description: This Mission Statement defines the ETF activity during its operating life. The results of those operations must provide the data, knowledge, experience, and confidence to continue to the next steps beyond ETF in making fusion power a viable energy option. The results from the ETF mission (operations are assumed to start early in the 1990's) are to bridge the gap between the base of magnetic fusion knowledge at the start of operations and that reqired to design the EPR/DEMO devices.
Date: October 1, 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Starfire: Initial Conceptual Design of a Commercial Tokamak Power Plant

Description: The purpose of the study is to provide a mechanism for the US Department of Energy to further assess the commercial potential of tokamak magnetic confinement for power reactors. The initial reference parameters for a helium cooled option are summarized. This study is placing particular emphasis on utility requirements, safety and maintenance considerations.
Date: January 1, 1979
Creator: Baker, C. C.; Abdou, M. A.; DeFreece, D.; Trachsel, C.; Graumann, D. & Kokszenski, J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Results of Systems Studies for the STARFIRE Commercial Tokamak

Description: Extensive system and tradeoff studies were performed to support the selection process for the major parameters and design features of the STARFIRE commercial reactor. With a thermal power of 3800 MW, a neutron wall load of 3.5 MW/m/sup 2/ results in a relatively small-size reactor without imposing excessive requirements on the first-wall cooling capability, maximum toroidal-magnetic field, and frequency of structural material requirements. This moderately high-wall load requires that the first-… more
Date: January 1, 1979
Creator: Abdou, M. A.; Ehst, D. A. & Waganer, L. M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Recent contributions to fusion reactor design and technology development

Description: The report contains a collection of 16 recent fusion technology papers on the STARFIRE Project, the study of alternate fusion fuel cycles, a maintainability study, magnet safety, neutral beam power supplies and pulsed superconducting magnets and energy transfer. This collection of papers contains contributions for Argonne National Laboratory, McDonnell Douglas Astronautics Company, General Atomic Company, The Ralph M. Parsons Company, the University of Illinois, and the University of Wisconsin.… more
Date: November 1, 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Oak Ridge TNS Program: a status report

Description: The Oak Ridge TNS activities have been directed at characterizing the design space between TFTR and EPR with a fundamental emphasis on higher beta plasma systems than previously projected, i.e., anti ..beta.. approximately 5 to 10% as compared to 1 to 3%. Based on the results of the FY 1977 System Studies, our activities this year are directed toward preconceptual design with particular emphasis placed on reducing the technological requirements through innovations in plasma engineering. Example… more
Date: January 1, 1978
Creator: Roberts, M
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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TNS Engineering Trade Study Analysis

Description: The computer code, ground rules, and plasma scalings used in the trade studies are briefly discussed. The results of these analyses are presented in detail. The results are summarized and pertinent conclusions and recommendations regarding the TNS design options are discussed. (MOW)
Date: September 30, 1977
Creator: Chapin, D. L. & Gibson, G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Oak Ridge TNS/PEPR Program is considering modified physics and engineering criteria to ease remote maintenance problems

Description: Early work on TNS/PEPR at ORNL consisted of systems trade studies to establish a baseline design. Representative parameters are shown in Table 1. Development of these parameters into a mechanical design focussed on the complexity of the device disassembly. Three modifications to the physics and engineering criteria are being studied to ease these problems of remote disassembly: (1) Increase allowable field ripple from 1% to a maximum of 3%, thereby reducing the number of TF coils. The result is… more
Date: January 1, 1978
Creator: Spampinato, P T & Shannon, T E
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Oak Ridge TNS program: context, scope, and baseline design of the FY 1978 activities

Description: A status report on the Oak Ridge TNS Program has been prepared with three basic parts--a summary of the FY 1977 activities, a discussion of the current baseline design, and a statement of work tasks for FY 1978. Within the FY 1977 activities, the plasma engineering efforts were directed toward improving the economical performance of tokamak reactors and toward easing the requirements placed upon the supporting technology development programs. The FY 1977 systems modeling efforts were used to de… more
Date: May 1, 1978
Creator: Steiner, D.; Brown, T.G.; Peng, Y. K. M.; Reid, R. L.; Roberts, M.; Shannon, T. E. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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