Construction of optimized superconducting spin precession magnets for neutron spectroscopy

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Kate ten, H.H.J. and Hartmann, R.A. and Zeyen, C.M.E. and Haken ten, B. and Klundert van de, L.J.M. (1989) Construction of optimized superconducting spin precession magnets for neutron spectroscopy. IEEE Transactions on Magnetics, 25 (2). pp. 1688-1691. ISSN 0018-9464

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Abstract:The design and construction of a superconducting magnet system for a high-resolution neutron spin echo spectrometer. The principal solution for the field shape of optimal precession magnets is B0 cos2(¿z/L). In practical precession magnets, this field shape is approximated by 30 superimposed concentric solenoids with a bore of 80 mm. The required field integral of 1 Tm, providing 104 precession turns, is achieved in a magnet with a length of about 1.5 m. The field in the center is 1.5 T maximum. The relative line integral inhomogeneity of about 10-3 obtained with such a coil is improved to less than 10-6 by two in-beam correction coils. The advanced homogeneity level means that after 10000 precession turns the precession angle remains still well defined without using tedious correction procedures
Item Type:Article
Copyright:©1989 IEEE
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Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/55766
Official URL:http://dx.doi.org/10.1109/20.92626
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