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TY - CONF AU - Shepherd, B.J.A. ED - Schaa, Volker RW TI - Permanent Magnets for Accelerators J2 - Proc. of IPAC2020, Caen, France, 10-15 May 2020 CY - Caen, France T2 - International Particle Accelerator Conference T3 - 11 LA - english AB - Several groups internationally have been designing and building adjustable permanent magnet based quad-rupoles for light sources, colliders, and plasma accelera-tors because of their very high gradients and zero power consumption. There are now examples of widely adjusta-ble PM dipoles too. The ZEPTO project, based at STFC Daresbury Laboratory, developed several highly adjusta-ble PM-based dipole and quadrupole prototypes for CLIC, and is now building a quadrupole to be installed in Diamond to gain experience ahead of the Diamond-2 upgrade. This is a review and comparison of the recent designs globally with comments on the future prospects. PB - JACoW Publishing CP - Geneva, Switzerland SP - 6 EP - 10 KW - dipole KW - quadrupole KW - permanent-magnet KW - radiation KW - SRF DA - 2020/10 PY - 2020 SN - 2673-5490 SN - 978-3-95450-213-4 DO - doi:10.18429/JACoW-IPAC2020-MOVIRO05 UR - http://jacow.org/ipac2020/papers/moviro05.pdf ER -