2011 Particle Accelerator Conference - List of Authors (Kinkead, A.K.)

Paper	Title	Page
MOP130	New Studies of X-band Dielectric-loaded Accelerating Structures	337
	S.H. Gold NRL, Washington, DC, USA S.P. Antipov, W. Gai, C.-J. Jing, R. Konecny, J.G. Power ANL, Argonne, USA A. Kanareykin Euclid TechLabs, LLC, Solon, Ohio, USA A.K. Kinkead Icarus Research, Inc., Bethesda, Maryland, USA
	Funding: Work supported by the DoE Office of High Energy Physics and ONR. A joint program is under way to study externally driven X-band dielectric-loaded accelerating (DLA) structures and CLIC-type power extraction structures. The structures are designed and fabricated by Argonne National Laboratory and Euclid Techlabs and tested at up to 20 MW drive power using the X-band Magnicon Facility at the Naval Research Laboratory, with additional tests carried out at SLAC. Thus far, tests have been carried out on a large variety of structures fabricated from quartz, alumina, and MCT-20, and the principal problems have been multipactor loading and rf breakdown.* Multipactor loading occurs on the inner surface of the dielectric in a region of strong normal and tangential rf electric fields; rf breakdown occurs principally at discontinuities in the dielectric. Gap-free DLA structures have been tested at 15 MV/m without breakdown. New tests are being prepared to address these two issues. New gap-free structures will make use of a metallic coating on the outer surface of the dielectric in order to permit tapering both the inner and outer diameters for rf matching, while new multipactor studies will examine the use of grooved surfaces to suppress multipactor. * C. Jing, W. Gai, J.G. Power, R. Konecny, W. Liu, S.H. Gold, A.K. Kinkead, S.G. Tantawi, V. Dolgashev, and A. Kanareykin, IEEE Trans. Plasma Sci., vol. 38, pp. 1354–1360, June 2010.

Paper

Title

Page

New Studies of X-band Dielectric-loaded Accelerating Structures

337

S.H. Gold
NRL, Washington, DC, USA
S.P. Antipov, W. Gai, C.-J. Jing, R. Konecny, J.G. Power
ANL, Argonne, USA
A. Kanareykin
Euclid TechLabs, LLC, Solon, Ohio, USA
A.K. Kinkead
Icarus Research, Inc., Bethesda, Maryland, USA

Funding: Work supported by the DoE Office of High Energy Physics and ONR.
A joint program is under way to study externally driven X-band dielectric-loaded accelerating (DLA) structures and CLIC-type power extraction structures. The structures are designed and fabricated by Argonne National Laboratory and Euclid Techlabs and tested at up to 20 MW drive power using the X-band Magnicon Facility at the Naval Research Laboratory, with additional tests carried out at SLAC. Thus far, tests have been carried out on a large variety of structures fabricated from quartz, alumina, and MCT-20, and the principal problems have been multipactor loading and rf breakdown.* Multipactor loading occurs on the inner surface of the dielectric in a region of strong normal and tangential rf electric fields; rf breakdown occurs principally at discontinuities in the dielectric. Gap-free DLA structures have been tested at 15 MV/m without breakdown. New tests are being prepared to address these two issues. New gap-free structures will make use of a metallic coating on the outer surface of the dielectric in order to permit tapering both the inner and outer diameters for rf matching, while new multipactor studies will examine the use of grooved surfaces to suppress multipactor.
* C. Jing, W. Gai, J.G. Power, R. Konecny, W. Liu, S.H. Gold, A.K. Kinkead, S.G. Tantawi, V. Dolgashev, and A. Kanareykin, IEEE Trans. Plasma Sci., vol. 38, pp. 1354–1360, June 2010.