Journal
REVIEW OF SCIENTIFIC INSTRUMENTS
Volume 81, Issue 8, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3474227
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- Centre College
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We develop a series expansion for the calculation of the magnetic field near the center of Helmholtz coils and apply the result to a magnet of our design. Our analysis considers geometric details of the coils, the magnetic properties of the form and windings, conductor insulation effects, and several winding imperfections. We also consider the relaxation of coil symmetry which happens when the mean radius of each coil and the coil midplane separation distance are unequal. We compute the field uniformity near the coil's center for three cases, including one where axial symmetry remains but geometric imperfections of the order of 10(-3) of the coil radius exist. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3474227]
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