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TY - CONF AU - Lu, X.Y. AU - Shapiro, M.A. AU - Temkin, R.J. ED - Henderson, Stuart ED - Akers, Evelyn ED - Satogata, Todd ED - Schaa, Volker R.W. TI - Interaction of a Volumetric Metamaterial Structure with an Electron Beam J2 - Proc. of IPAC2015, Richmond, VA, USA, May 3-8, 2015 C1 - Richmond, VA, USA T2 - International Particle Accelerator Conference T3 - 6 LA - english AB - A volumetric metallic metamaterial structure with a cubic unit cell is introduced. The unit cells can naturally fill all of space without additional substrates or waveguides. The structure can support a negative longitudinal electric mode that can couple to an electron beam. The dispersion characteristics of the unit cell are modeled by the effective medium theory with spatial dispersion. The theory also predicts the correct resonant frequencies of the emitted radiation excited by an electron beam traversing the structure. In the wakefield simulations, a backward radiation pattern is observed. The proposed metamaterial can be applied to beam diagnostics and wakefield acceleration. PB - JACoW CP - Geneva, Switzerland SP - 2640 EP - 2642 KW - electron KW - wakefield KW - radiation KW - acceleration KW - coupling DA - 2015/06 PY - 2015 SN - 978-3-95450-168-7 DO - 10.18429/JACoW-IPAC2015-WEPWA060 UR - http://jacow.org/ipac2015/papers/wepwa060.pdf ER -