MFTF-. cap alpha. +T end plug magnet design

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The conceptual design of the end-plug magnets for MFTF-..cap alpha..+T is described. MFTF-..cap alpha..+ T is a near-term upgrade of MFTF-B, which features new end plugs to improve performance. The Fusion Engineering Design Center has performed the engineering design of MFTF-..cap alpha..+T under the overall direction of Lawrence Livermore National Laboratory. Each end plug consists of two Yin-Yang pairs, each with approx.2.5:1 mirror ratio and approx.5-T peak field on axis; two transition coils; and a recircularizing solenoid. This paper describes the end-plug magnet system functional requirements and presents a conceptual design that meets them. The peak field at the windings ... continued below

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Pages: 6

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Srivastava, V.C. & O'Toole, J.A. January 1, 1983.

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Description

The conceptual design of the end-plug magnets for MFTF-..cap alpha..+T is described. MFTF-..cap alpha..+ T is a near-term upgrade of MFTF-B, which features new end plugs to improve performance. The Fusion Engineering Design Center has performed the engineering design of MFTF-..cap alpha..+T under the overall direction of Lawrence Livermore National Laboratory. Each end plug consists of two Yin-Yang pairs, each with approx.2.5:1 mirror ratio and approx.5-T peak field on axis; two transition coils; and a recircularizing solenoid. This paper describes the end-plug magnet system functional requirements and presents a conceptual design that meets them. The peak field at the windings of the end-plug coils is approx.6-T. These coils are designed using the NbTi MFTF-B conductor and cooled by a 4.2K liquid helium bath. All the end-plug magnets are designed to operate in the cryostable mode with adequate quench protection for safety. Shielding requirements are stated and a summary of heat loads is provided. Field and force calculations are discussed. The field on axis is shown to meet the functional requirements. Force resultants are reported in terms of winding running loads and resultant coil forces are also given. The magnet structural support is described. A trade study to determine the optimum end-cell coil internal nuclear shield thickness and the resulting coil size based on minimizing the end-cell life cycle cost is summarized.

Physical Description

Pages: 6

Notes

NTIS, PC A02/MF A01; 1.

Source

  • 10. symposium on fusion engineering, Philadelphia, PA, USA, 5 Dec 1983

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  • Other: DE85001170
  • Report No.: CONF-831203-183
  • Grant Number: AC05-84OR21400
  • Office of Scientific & Technical Information Report Number: 6346297
  • Archival Resource Key: ark:/67531/metadc1212432

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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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  • January 1, 1983

Added to The UNT Digital Library

  • July 5, 2018, 11:11 p.m.

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  • Sept. 4, 2018, 6:11 p.m.

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Srivastava, V.C. & O'Toole, J.A. MFTF-. cap alpha. +T end plug magnet design, article, January 1, 1983; United States. (digital.library.unt.edu/ark:/67531/metadc1212432/: accessed December 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.