Experimental and theoretical thermal analysis of CVD diamond window units for the ITER upper launcher

Author

Scherer, T.A. ; Heidinger, R. ; Meier, A. ; Strauss, D. ; Takahashi, K. ; Kajiwara, K. ; Sakamoto, K.

Author_Institution

Assoc. EURATOM-FZK, Forschungszentrum Karlsruhe, Karlsruhe

fYear

2008

fDate

15-19 Sept. 2008

Firstpage

1

Lastpage

2

Abstract

An ITER torus window prototype with CVD diamond disks and corrugated waveguides are being investigated by using IR imaging and temperature measuring technique during high power RF microwave loading up to 1 MW at a frequency of 170 GHz at the JAEA gyrotron facility. To evaluate the cooling efficiency of the window design the temperature distribution over the diamond disk area is measured and compared with a theoretical thermal FEM analysis.

Keywords

diamond; infrared imaging; optical windows; temperature measurement; waveguides; C; CVD diamond disks; CVD diamond window; IR imaging; ITER upper launcher; cooling efficiency; corrugated waveguides; frequency 170 GHz; high power RF microwave loading; temperature measuring technique; thermal analysis; Frequency measurement; Gyrotrons; Microwave imaging; Microwave measurements; Microwave theory and techniques; Optical imaging; Power measurement; Prototypes; Radio frequency; Temperature measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared, Millimeter and Terahertz Waves, 2008. IRMMW-THz 2008. 33rd International Conference on

Conference_Location

Pasadena, CA

Print_ISBN

978-1-4244-2119-0

Electronic_ISBN

978-1-4244-2120-6

Type

conf

DOI

10.1109/ICIMW.2008.4665660

Filename

4665660