Experimental and Analytic Studies of an RF Load Resistor

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The pulsed output of an 850-MHz klystron was directed into a load assembly containing a water-cooled, 50-ohm resistor. The load was systematically subjected to high peak-power pulses from the klystron. Several thin-film resistors were tested and exhibited various damage patterns for different combinations of peak microwave power (33 kW - 500 kW) and heat input. In order to better understand the phenomena observed, the electromagnetic field distribution inside the resistor housing was studied with WaveSim, a two-dimensional, finite-element scattering code. The conformal mesh of the program allowed accurate representations of the complex assembly geometry.

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Borovina, D.L.; Humphries, S.; Gahl, J.M. & Rees, D. March 29, 1999.

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Description

The pulsed output of an 850-MHz klystron was directed into a load assembly containing a water-cooled, 50-ohm resistor. The load was systematically subjected to high peak-power pulses from the klystron. Several thin-film resistors were tested and exhibited various damage patterns for different combinations of peak microwave power (33 kW - 500 kW) and heat input. In order to better understand the phenomena observed, the electromagnetic field distribution inside the resistor housing was studied with WaveSim, a two-dimensional, finite-element scattering code. The conformal mesh of the program allowed accurate representations of the complex assembly geometry.

Physical Description

Medium: P; Size: vp.

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INIS; OSTI as DE00758924

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  • 1999 Particle Accelerator Conference, New York, NY (US), 03/29/1999--04/02/1999

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  • Report No.: LA-UR-99-1377
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 758924
  • Archival Resource Key: ark:/67531/metadc703439

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  • March 29, 1999

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  • Sept. 12, 2015, 6:31 a.m.

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  • May 6, 2016, 1:19 p.m.

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Borovina, D.L.; Humphries, S.; Gahl, J.M. & Rees, D. Experimental and Analytic Studies of an RF Load Resistor, article, March 29, 1999; New Mexico. (digital.library.unt.edu/ark:/67531/metadc703439/: accessed October 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.