Development of 170 GHz, 0.1 MW short pulse gyrotron

•In this article described the process to build the 170 GHz, 0.1MW short pulse gyrotron.•Indian tubes community progresses towards the first short pulse prototype has been assembled at India.•Numbers of joining operations completed through laser welding, brazing, TIG welding.•The integration and vac...

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Bibliographic Details
Published in:Fusion engineering and design 2019-07, Vol.144, p.87-92
Main Authors: Kumar Alaria, Mukesh, Singh, N, Singh, Utpal, Bera, A, Sinha, AK
Format: Article
Language:English
Subjects:
Converters
Demountable
Ducts
Gaussian mode
Magnetron injection gun (MIG)
Mode converter
Vacuum chambers
Vacuum processing
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Summary:•In this article described the process to build the 170 GHz, 0.1MW short pulse gyrotron.•Indian tubes community progresses towards the first short pulse prototype has been assembled at India.•Numbers of joining operations completed through laser welding, brazing, TIG welding.•The integration and vacuum processing of demountable gyrotron have been done. In this paper, the development of 170 GHz, 0.1 MW short pulse gyrotron has been explained. All components of 170 GHz gyrotron such as MIG, cavity, beam tunnel, collector and RF window with radial output have been designed and developed. A quasi optical mode converter consists of smooth wall mode launcher, 3-metallic mirrors and vacuum chamber with view front of window has been successfully developed. The integration and vacuum processing of demountable 170 GHz gyrotron have been carried out. The overall length of gyrotron is around 2.2 m and weight is around 200 kg without cooling ducts. This is the first step of development of an ITER gyrotron.
ISSN:0920-3796
1873-7196
DOI:10.1016/j.fusengdes.2019.04.073