Development of the material processing system by using a 300 GHz gyrotron

Author

Hoshizuki, H. ; Matsuura, K. ; Mitsudo, S. ; Idehara, T. ; Malygin, O.V. ; Khizhnjak, V.I. ; Zapevalov, V.E. ; Ueda, T. ; Furuiti, M. ; Kitano, A. ; Nishi, H. ; Ishibashi, J.

Author_Institution

Res. Center for Dev. of Far-Infrared Region, Fukui Univ., Japan

Volume

2

fYear

2005

fDate

19-23 Sept. 2005

Firstpage

375

Abstract

An increase in the frequency of microwave used for the processing of materials has a great potential for the applications. We developed the material heating system by using a 300GHz gyrotron. This system are consisted of a 300 GHz, 3.5 kW, CW gyrotron with a cryogen free 12 T superconducting magnet, a corrugated circular waveguide and an applicator. The circular corrugated waveguide (i.d. = 6.35cm) with a corrugated period and depth of 254 μm have been designed. The applicator have been designed both volumetric heating by uniformly distributed microwave and surface heating by a focused wave beam.

Keywords

circular waveguides; gyrotrons; magnetic millimetre wave devices; materials preparation; microwave heating; millimetre wave tubes; submillimetre wave tubes; superconducting devices; superconducting magnets; 12 T; 3.5 kW; 300 GHz; CW gyrotrons; corrugated circular waveguide; cryogen free superconducting magnet; focused wave beam heating; material heating system; material processing system; microwave heating; surface heating; volumetric heating; Applicators; Corrugated surfaces; Electromagnetic heating; Frequency; Gyrotrons; Magnetic materials; Materials processing; Superconducting magnets; Superconducting materials; Surface waves;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared and Millimeter Waves and 13th International Conference on Terahertz Electronics, 2005. IRMMW-THz 2005. The Joint 30th International Conference on

Print_ISBN

0-7803-9348-1

Type

conf

DOI

10.1109/ICIMW.2005.1572569

Filename

1572569