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Design considerations and experimental estimation of temperature coefficient of resistance of W-Re heater for high power pulse magnetrons

Author

Listed:
  • Jagdish Kumar
  • Rajendra Kumar Verma
  • Mahesh Kumar
  • N. Kanagraj
  • S. Maurya
  • V. V. P. Singh

Abstract

This paper deals with the design methodology of the heater for an indirectly-heated oxide-coated-cathode of a 3 MW S-Band Pulse Magnetron. The temperature coefficient of resistance of 97%Tungsten – 3%Rhenium (W97-Re3) wire has been experimentally estimated. A value in the range of 3.07 × 10−3 – 3.43 × 10−3 per °C has been estimated over the temperature range of 863–1439 °C. An approach to design the heater has been evolved in order to ensure quality, reliability, and long life of high power magnetrons.

Suggested Citation

  • Jagdish Kumar & Rajendra Kumar Verma & Mahesh Kumar & N. Kanagraj & S. Maurya & V. V. P. Singh, 2017. "Design considerations and experimental estimation of temperature coefficient of resistance of W-Re heater for high power pulse magnetrons," Journal of Electromagnetic Waves and Applications, Taylor & Francis Journals, vol. 31(15), pages 1541-1549, October.
    • Handle: RePEc:taf:tewaxx:v:31:y:2017:i:15:p:1541-1549
    DOI: 10.1080/09205071.2017.1353926
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