ISSN 0021-3454 (print version)
ISSN 2500-0381 (online version)
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vol 63 / January, 2020
Article

DOI 10.17586/0021-3454-2016-59-1-60-68

UDC 537.613

MULTIPOLE NEODYMIUM MAGNETS FOR POLARIZED ATOM SOURCE

K. A. Ivshin
Petersburg Nuclear Physics Institute; Junior Scientist


A. A. Vasiliev
B. P. Konstantinov Petersburg Nuclear Physics Institute RAS; Department of Instruments and Methods of Polarization Measurements of St. Petersburg State University of Information Technologies, Mechanics and Optics; Head of Department


M. E. Vznuzdaev
B. P. Konstantinov Petersburg Nuclear Physics Institute RAS; Department of Instruments and Methods of Polarization Measurements of St. Petersburg State University of Information Technologies, Mechanics and Optics; Senior Scientist


S. S. Kiselev
Saint Petersburg National Research University of Information Technologies, Mechanics and Optics; Associate Professor


P. A. Kravtsov
B. P. Konstantinov Petersburg Nuclear Physics Institute RAS; Department of Instruments and Methods of Polarization Measurements of St. Petersburg State University of Information Technologies, Mechanics and Optics; Senior Scientist


I. N. Solovyev
Petersburg Nuclear Physics Institute; Intern


V. A. Trofimov
B. P. Konstantinov Petersburg Nuclear Physics Institute RAS; Department of Instruments and Methods of Polarization Measurements of St. Petersburg State University of Information Technologies, Mechanics and Optics;; Senior Scientist


R. Engels
Institute of Nuclear Physics, Research Center Jülich; Senior Scientist


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Abstract. A possibility of high gradient magnets construction from the commercially available NdFeB dipole magnets for the polarized atomic beam sources is described. Radial component of the magnetic field for quadrupole and six-pole magnets is measured at the middle plane of the magnet as function of the angle and along the magnet axis. Characteristics of magnetic field of the magnets calculated using COMSOL MultiPhysics software are compared to the experimental results. The feasibility to effectively use the software for 3D-simulation of the gradient multipole magnet systems to be developed is demonstrated.
Keywords: magnet systems, polarized atomic sources, quadrupole magnets, six-pole magnets, 3Dmodeling of magnet systems

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