Steady-state plasma and reactor parameters for elliptical cross section tokamaks with very large power ratings

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In previous studies only circular cross section reactor plasmas were considered. The purpose of this research is to examine the effects of elliptical plasma cross sections. Several technological benefits have been determined. Maximum magnetic field strength requirements are 30 to 65 percent less than for 5000 MW (th) reactors and may be as much as 40 percent less than for circular cross section reactors of comparable size. Very large n tau values are found (10$sup 15$ to 10$sup 17$ sec/cm$sup 3$), which produce large burn-up fractions (15 to 60 percent). There is relatively little problem with impurity build-up. Long confinement ... continued below

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Pages: 91

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Usher, J.L. & Powell, J.R. June 1, 1975.

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Description

In previous studies only circular cross section reactor plasmas were considered. The purpose of this research is to examine the effects of elliptical plasma cross sections. Several technological benefits have been determined. Maximum magnetic field strength requirements are 30 to 65 percent less than for 5000 MW (th) reactors and may be as much as 40 percent less than for circular cross section reactors of comparable size. Very large n tau values are found (10$sup 15$ to 10$sup 17$ sec/cm$sup 3$), which produce large burn-up fractions (15 to 60 percent). There is relatively little problem with impurity build-up. Long confinement times (60 to 500 seconds) are found. Finally, the elliptical cross section reactors exhibit a major toroidal radius reduction of as large as 30 percent over circular reactors operating at comparable power levels. (auth)

Physical Description

Pages: 91

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Dep. NTIS

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  • Other Information: Orig. Receipt Date: 30-JUN-76

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  • Report No.: BNL--20759
  • Grant Number: None
  • DOI: 10.2172/4107732 | External Link
  • Office of Scientific & Technical Information Report Number: 4107732
  • Archival Resource Key: ark:/67531/metadc872233

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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Creation Date

  • June 1, 1975

Added to The UNT Digital Library

  • Sept. 16, 2016, 12:32 a.m.

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  • Sept. 22, 2016, 10:46 a.m.

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Usher, J.L. & Powell, J.R. Steady-state plasma and reactor parameters for elliptical cross section tokamaks with very large power ratings, report, June 1, 1975; Upton, New York. (digital.library.unt.edu/ark:/67531/metadc872233/: accessed November 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.