Design of a RF window for 170 GHz, 1 MW gyrotron for ECRH application |
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Authors: | Anil Kumar Sudeep SharanNitin Kumar Udaybir SinghH. Khatun V. VyasA.K. Sinha |
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Affiliation: | a Gyrotron Laboratory, Microwave Tube Area, Central Electronics Engineering Research Institute (CEERI, CSIR), Pilani, Rajasthan 333 031, India b Banasthali University, Banasthali, Rajasthan 304 022, India |
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Abstract: | This paper describes the design of a large sized diamond window for 1 MW, 170 GHz gyrotron. The diameter and the thickness of the diamond window are 80 mm and 1.482 mm, respectively, whose edge is directly cooled by water. The CST microwave studio has been used for the S-parameter, and finite element analysis code ANSYS has been used for the thermal and the structural simulation. The return loss (S11) and insertion loss (S21) of the 170 GHz gyrotron window have been found −39.80 dB and −0.011 dB, respectively. The thermal and structural analysis of RF window the 397 K temperature at disk center and maximum displacement 0.01 mm has been found in the window disk during the thermal analysis. |
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Keywords: | Gyrotron RF window Thermal analysis PACVD diamond ECRH |
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