Accepted Manuscript Magnetic and mechanical design of large-aperture variable-period permanent magnet undulator I. Davidyuk, O.A. Shevchenko, V.G. Tcheskidov, N.A. Vinokurov PII: S0168-9002(18)31482-7 DOI: https://doi.org/10.1016/j.nima.2018.10.168 Reference: NIMA 61490 To appear in: Nuclear Inst. and Methods in Physics Research, A Received date : 2 July 2018 Revised date : 11 October 2018 Accepted date : 22 October 2018 Please cite this article as: I. Davidyuk, et al., Magnetic and mechanical design of large-aperture variable-period permanent magnet undulator, Nuclear Inst. and Methods in Physics Research, A (2018), https://doi.org/10.1016/j.nima.2018.10.168 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.