A high power cross-field amplifier at X-Band

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A high power cross-field amplifier is under development at SLAC with the objective of providing sufficient peak power to feed a section of an X-Band (11.424 GHz) accelerator without the need for pulse compression. The CFA being designed employs a conventional distributed secondary emission cathode but a novel anode structure which consists of an array of vane resonators alternatively coupled to a rectangular waveguide. The waveguide impedance (width) is tapered linearly from input to output so as to provide a constant RF voltage at the vane tips, leading to uniform power generation along the structure. Nominal design for this tube ... continued below

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Pages: (3 p)

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Eppley, K.; Feinstein, J.; Ko, K.; Kroll, N.; Lee, T. & Nelson, E. May 1, 1991.

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Description

A high power cross-field amplifier is under development at SLAC with the objective of providing sufficient peak power to feed a section of an X-Band (11.424 GHz) accelerator without the need for pulse compression. The CFA being designed employs a conventional distributed secondary emission cathode but a novel anode structure which consists of an array of vane resonators alternatively coupled to a rectangular waveguide. The waveguide impedance (width) is tapered linearly from input to output so as to provide a constant RF voltage at the vane tips, leading to uniform power generation along the structure. Nominal design for this tube calls for 300 MW output power, 20 dB gain, DC voltage 142 KV, magnetic field 5 KG, anode-cathode gap 3.6 mm and total interaction length of about 60 cm. These specifications have been supported by computer simulations of both the RF slow wave structure as well as the electron space charge wave interaction. We have used ARGUS to model the cold circuit properties and CONDOR to model the electronic power conversion. An efficiency of 60 percent can be expected. We will discuss the details of the design effort. 5 refs., 6 figs.

Physical Description

Pages: (3 p)

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OSTI; NTIS; INIS; GPO Dep.

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  • 1991 Institute of Electrical and Electronics Engineers (IEEE) particle accelerator conference (PAC), San Francisco, CA (USA), 6-9 May 1991

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  • Other: DE91013277
  • Report No.: SLAC-PUB-5559
  • Report No.: CONF-910505--115
  • Grant Number: AC03-76SF00515
  • Office of Scientific & Technical Information Report Number: 5688184
  • Archival Resource Key: ark:/67531/metadc1093133

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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, 1991

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  • Feb. 10, 2018, 10:06 p.m.

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  • May 29, 2018, 12:54 p.m.

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Eppley, K.; Feinstein, J.; Ko, K.; Kroll, N.; Lee, T. & Nelson, E. A high power cross-field amplifier at X-Band, article, May 1, 1991; Menlo Park, California. (digital.library.unt.edu/ark:/67531/metadc1093133/: accessed December 11, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.