MAKING AN INEXPENSIVE ELECTROMAGNETIC WIGGLER USING SHEET MATERIALS FOR THE COILS
msra(2004)
Abstract
An inexpensive electromagnetic wiggler, made with twenty-eight, 8 cm periods with a K of 1 and gap of 2.6 cm was made within 11 weeks after receipt of order by an industrial machine shop. The coil design used sheet and plate materials cut to shapes using water jet cutting and was assembled in a simple stack design. The coil design extends the serpentine conductor design of the Duke OK4 to more and smaller conductors. The coils are conduction cooled with imbedded cooling plates. The wiggler features graded end pole fields, trim coil compensation for end field errors, and mirror plates on the ends to avoid three dimensional end field effects. Details of the methods used in construction and the wiggler performance are presented.
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Key words
three dimensional
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