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Diamond Dielectrics for Advanced Wakefield Accelerators

Published online by Cambridge University Press:  02 July 2013

Stanley S. Zuo
Affiliation:
Euclid TechLabs, 5900 Harper Rd, #102, Solon, OH 44139, U.S.A
James E. Butler
Affiliation:
Euclid TechLabs, 5900 Harper Rd, #102, Solon, OH 44139, U.S.A
Bradford B. Pate
Affiliation:
Naval Research Laboratory, 4555 Overlook Ave. SW, Washington, DC 20375, U.S.A
Sergey P. Antipov
Affiliation:
Euclid TechLabs, 5900 Harper Rd, #102, Solon, OH 44139, U.S.A
Alexei Kanareykin
Affiliation:
Euclid TechLabs, 5900 Harper Rd, #102, Solon, OH 44139, U.S.A
Chunguang Jing
Affiliation:
Euclid TechLabs, 5900 Harper Rd, #102, Solon, OH 44139, U.S.A
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Abstract

Diamond was investigated as one of the superior dielectric materials for advanced wakefield accelerators. Both planar and cylindrical wakefield accelerating structures were constructed. An AsTex microwave plasma-enhanced CVD system was modified for synthesis of cylindrical polycrystalline diamond tubes. Cylindrical diamond tubes were successfully synthesized from hydrogen and methane and are characterized with micro Raman, photoluminescence spectroscopy and optical tests. In addition, planar wakefield structures were constructed from commercially available diamond. Wakefield tests on a rectangular diamond structure confirm that diamond can sustain microwave electric field strengths of 0.3 GV/m at its surface without material breakdown.

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