Proximity detector circuits: an attractive alternative to tunnel diode oscillators for contactless measurements in pulsed magnetic fields

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A new radio frequency oscillator circuit based on a proximity detector integrated circuit is described as an alternative for the traditional tunnel diode oscillator used for pulsed magnetic field measurements at low temperatures. The new circuit has been successfully applied to measure the superconducting upper critical field in Ba{sub 0.55}K{sub 0.45}Fe{sub 2}As{sub 2} single crystfl.ls up to 60 T. The new circuit design avoids many of the problems associated with tunnel diode circuits while keeping the advantages of contact less measurements in pulsed magnets.

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066104

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Altarawneh, Moaz M & Mielke, Charles H January 1, 2009.

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A new radio frequency oscillator circuit based on a proximity detector integrated circuit is described as an alternative for the traditional tunnel diode oscillator used for pulsed magnetic field measurements at low temperatures. The new circuit has been successfully applied to measure the superconducting upper critical field in Ba{sub 0.55}K{sub 0.45}Fe{sub 2}As{sub 2} single crystfl.ls up to 60 T. The new circuit design avoids many of the problems associated with tunnel diode circuits while keeping the advantages of contact less measurements in pulsed magnets.

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066104

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  • Journal Name: Review of Scientific Instruments; Journal Volume: 80; Journal Issue: 6

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  • Report No.: LA-UR-09-00749
  • Report No.: LA-UR-09-749
  • Grant Number: AC52-06NA25396
  • DOI: 10.1063/1.3152219 | External Link
  • Office of Scientific & Technical Information Report Number: 956390
  • Archival Resource Key: ark:/67531/metadc926730

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  • January 1, 2009

Added to The UNT Digital Library

  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 12, 2016, 12:50 p.m.

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Altarawneh, Moaz M & Mielke, Charles H. Proximity detector circuits: an attractive alternative to tunnel diode oscillators for contactless measurements in pulsed magnetic fields, article, January 1, 2009; [New Mexico]. (digital.library.unt.edu/ark:/67531/metadc926730/: accessed October 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.