Phys. Rev. ST Accel. Beams 10, 032401 (2007) [11 pages]Selection of the optimum magnet design for the International Linear Collider positron source helical undulator
D. J. Scott *,†,‡, S. Appleton ‡, J. A. Clarke ‡, O. B. Malyshev ‡, B. J. A. Shepherd ‡, and B. Todd
D. E. Baynham, T. Bradshaw, A. Brummitt, S. Carr, Y. Ivanyushenkov, and J. Rochford
I. R. Bailey ‡, P. Cooke, J. B. Dainton ‡, and L. I. Malysheva ‡
D. P. Barber ‡
G. A. Moortgat-Pick ‡ Received 24 August 2006; published 30 March 2007 A comparison of possible undulator designs for the International Linear Collider positron source has resulted in a superconducting bifilar wire design being selected. After a comprehensive paper study and fabrication of the two preeminent designs, the superconducting undulator was chosen instead of the permanent magnet alternative. This was because of its superior performance in terms of magnetic field strength and quality, operational flexibility, risk of radiation damage, ease in achieving the required vacuum, and cost. The superconducting undulator design will now be developed into a complete system design for the full 200 m long magnet that is required. ©2007 The American Physical Society
URL: http://link.aps.org/abstract/PRSTAB/v10/e032401
* Electronic address: d.j.scott@dl.ac.uk
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