Thermo-Mechanical Analysis of Electron Gun for traveling-wave tubes
Microwave Tubes Division,Central Electronics Engineering Research Institute (CSIR) Pilani Rajasthan India
Email:-ghoshsk@rediffmail.com
Travelling wave tubes (TWTs) are power amplifier for communication satellite. The electron gun plays a significant role in determining the life and reliability of a TWT. For long life and reliable TWT, a cathode needs to be operated at lower temperature, and, hence, proper heat shielding from cathode is important. To avoid heat drainage from cathode, cathode is shielded with tantalum heat shields. A three dimensional thermal and structural analysis of electron gun is being carried out using finite element analysis (FEA) code COSMOS. The thickness and material property of cathode heat shield is a critical parameter and are presented here. Moreover, expansion of cathode, beam focus electrode (BFE) and anode in both axial and radial directions are also studied due to temperature distribution. Also a frequency analysis of electron gun assembly has also been carried out.
Copy the following to cite this article:
V. Gahlaut, R. K. Sharma, V. Srivastava, P. A. Alvi¶, and S. Ghosh , "Thermo-Mechanical Analysis of Electron Gun for traveling-wave tubes ", Journal of Ultra Scientist of Physical Sciences, Volume 23, Issue 3, Page Number 591-598, 2016Copy the following to cite this URL:
V. Gahlaut, R. K. Sharma, V. Srivastava, P. A. Alvi¶, and S. Ghosh , "Thermo-Mechanical Analysis of Electron Gun for traveling-wave tubes ", Journal of Ultra Scientist of Physical Sciences, Volume 23, Issue 3, Page Number 591-598, 2016Available from: http://ultraphysicalsciences.org/paper/654/
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