Multi-MW K-Band 7th Harmonic Multiplier for High-Gradient Accelerator R&D

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A preliminary design and current status are presented for a two-cavity 7th harmonic multiplier, intended as a high-power RF source for use in experiments aimed at developing high-gradient structures for a future collider. The harmonic multiplier is to produce power in K-band using as its RF driver an XK-5 S-band klystron (2.856 GHz). The multiplier is to be built with a TE{sub 111} rotating mode input cavity and interchangeable output cavities, a principal example being a TE{sub 711} rotating mode cavity running at 20 GHz. The design that is described uses a 250 kV, 20 A injected laminar electron beam. ... continued below

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3 pages

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Solyak, N.A.; Yakovlev, V.P.; /Omega-P, New Haven /Fermilab; Hirschfield, J.L.; /Omega-P, New Haven /Yale U.; Kazakevich, G.M. et al. May 1, 2009.

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Description

A preliminary design and current status are presented for a two-cavity 7th harmonic multiplier, intended as a high-power RF source for use in experiments aimed at developing high-gradient structures for a future collider. The harmonic multiplier is to produce power in K-band using as its RF driver an XK-5 S-band klystron (2.856 GHz). The multiplier is to be built with a TE{sub 111} rotating mode input cavity and interchangeable output cavities, a principal example being a TE{sub 711} rotating mode cavity running at 20 GHz. The design that is described uses a 250 kV, 20 A injected laminar electron beam. With 8.5 MW of S-band drive power, 4.4 MW of 20-GHz output power is predicted. The design uses a gun, magnetic coils, and beam collector from an existing waveguide 7th harmonic multiplier. The gun has been re-conditioned and the desired operating parameters have been achieved.

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3 pages

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  • Presented at Particle Accelerator Conference (PAC 09), Vancouver, BC, Canada, 4-8 May 2009

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  • Report No.: FERMILAB-CONF-09-184-TD
  • Grant Number: AC02-07CH11359
  • Office of Scientific & Technical Information Report Number: 952631
  • Archival Resource Key: ark:/67531/metadc935139

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • May 1, 2009

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  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 6, 2016, 1:44 p.m.

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Solyak, N.A.; Yakovlev, V.P.; /Omega-P, New Haven /Fermilab; Hirschfield, J.L.; /Omega-P, New Haven /Yale U.; Kazakevich, G.M. et al. Multi-MW K-Band 7th Harmonic Multiplier for High-Gradient Accelerator R&D, article, May 1, 2009; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc935139/: accessed January 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.