منابع مشابه
Electro-Magnetic Quadrupole Magnets in the LCLS FEL Undulator
We discuss various aspects of electromagnetic quadrupole (EMQ) magnets for the LCLS FEL undulator, including their utility in beam-based alignment (BBA), magnet design issues, and impact on tunnel environment, reliability, and cost. The present focusing lattice in the LCLS undulator is based on permanent magnet quadrupoles (PMQs). The motivation for permanent magnets is under question, while va...
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ژورنال
عنوان ژورنال: Nature
سال: 1901
ISSN: 0028-0836,1476-4687
DOI: 10.1038/064168a0