Superconducting spin precession magnets for a new neutron spectrometer

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Knoopers, Hennie G. and Kate ten, Herman H.J. and Zeyen, Claude M.E. (1994) Superconducting spin precession magnets for a new neutron spectrometer. Cryogenics, 34 (Suppl.). pp. 651-654. ISSN 0011-2275

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Abstract:The required field shape of optimal Larmor precession magnets to obtain the bestpossible homogeneity is B0cos2(¿z/L). In practice this field shape is approximated by 30 superimposed concentric solenoids. The coils are made with an extreme dimensional precision with a typical error of 10 ¿m. A special winding technique in combination with a relatively thin superconducting wire of 230 ¿m diameter provided a significant overall accuracy. In this paper the design and construction aspects of the superconducting Larmor precession magnets will be discussed. Results of the magnetic field optimisation as well as preliminary test results of the magnets are presented. However, the ultimate performance will be investigated when the magnets are put into operation in the new neutron Larmor precession spectrometer at the Institut Laue Langevin.
Item Type:Article
Copyright:© 1994 Elsevier Science
Faculty:
Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/57389
Official URL:http://dx.doi.org/10.1016/S0011-2275(05)80153-5
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