Speaker
Nathan Majernik
(SLAC National Accelerator Laboratory)
Description
Multileaf collimators (MLC) are versatile tools for beam shaping, both transversely or, when used in conjunction with an emittance exchange (EEX) beamline, longitudinally. The requirement for ultra-high vacuum compatibility introduces significant constraints on the design of a MLC. Here, we present a novel design for a MLC based on stacks of rotors with angularly dependent radii. The use of tabs and slots allow dozens of these rotors to be positioned using a single vacuum feedthrough, dramatically reducing complexity over independently positioned leaves. We discuss other design elements and also the considerations arising from having a volumetric rather than planar beam mask.
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Author
Nathan Majernik
(SLAC National Accelerator Laboratory)
Co-authors
A Parrack
(University of California, Los Angeles)
Eric Wisniewski
(Argonne National Laboratory)
Gerard Andonian
(University of California, Los Angeles)
James Rosenzweig
(University of California, Los Angeles)
John Power
(Argonne National Laboratory)
Scott Doran
(Argonne National Laboratory)
