Heat and Mass Transfer

, Volume 50, Issue 6, pp 821–826 | Cite as

Thermal behaviour of a periodic structure supported by dielectric rods in vacuum

  • V. Gahlaut
  • P. A. Alvi
  • S. GhoshEmail author


In a traveling-wave tube (TWT) the helical periodic slow-wave structure (SWS) is supported by dielectric supports in a metal envelope in high vacuum. The heat generated in the helix during beam-wave interaction, restricts the average power handling capability of a TWT, dissipated by conduction through support rods. Thermal contact resistances, arises at different joints of different materials, affect heat dissipation from the helix which have been studied and presented here.


Thermal Resistance Contact Resistance Heat Dissipation Thermal Contact Resistance Equivalent Thermal Conductivity 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  1. 1.Microwave Tubes Division, Central Electronics Engineering Research InstituteCouncil of Scientific and Industrial Research (CSIR)PilaniIndia
  2. 2.Department of PhysicsBanasthali UniversityBanasthaliIndia

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