Engineering design problems of TFTR

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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, often, in actuality, must be approached as materials problems. The complex, precision structures must satisfy various criteria, for example, low magnetic permeability, high electrical resistivity, resistance ... continued below

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Pages: 33

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Lee, D. January 1, 1977.

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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, often, in actuality, must be approached as materials problems. The complex, precision structures must satisfy various criteria, for example, low magnetic permeability, high electrical resistivity, resistance to neutron activation and high damage tolerance. Another constraint in the engineering design of TFTR is the requirement to optimize access to machine components for maintenance and repair. Many of the problems associated with accessibility have been resolved: the vacuum vessel has been designed as a ten-segment vessel; the igloo shielding of the machine is composed of interlocking blocks of boron-loaded concrete; the center column is designed in three segments. Current engineering emphasis is on finalizing design of the toroidal field coils, lower poloidal field coils, vacuum vessel liners and limiters and peripheral systems such as the vacuum pumping system and arrangement of diagnostics.

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Pages: 33

Notes

Dep. NTIS, PC A03/MF A01.

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  • ANS winter meeting, San Francisco, CA, USA, 27 Nov 1977

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  • Report No.: CONF-771109-44
  • Grant Number: EY-76-C-02-3073
  • Office of Scientific & Technical Information Report Number: 5223657
  • Archival Resource Key: ark:/67531/metadc1065811

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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.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • January 1, 1977

Added to The UNT Digital Library

  • Feb. 4, 2018, 10:51 a.m.

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  • May 11, 2018, 6:36 p.m.

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Lee, D. Engineering design problems of TFTR, article, January 1, 1977; New Jersey. (digital.library.unt.edu/ark:/67531/metadc1065811/: accessed December 10, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.