Preparatory study of feasibility for a vertical viewing electron cyclotron emission diagnostic for the JT-60SA tokamak.

Autor: Tokuzawa, T., Yoshida, M., Imazawa, R., Nakagawa, S., Inagaki, S., Kin, F., Chiba, S., Suzuki, N., Nasu, T., Fujisawa, A., Ida, K.
Předmět:
Zdroj: Review of Scientific Instruments; Aug2024, Vol. 95 Issue 8, p1-6, 6p
Abstrakt: A preparatory study is underway to investigate the feasibility study of high-energetic, non-thermal electron distribution function measurements using a vertical-viewing electron cyclotron emission (ECE) diagnostic on JT-60SA. The system is designed to detect broad ECE spectra (70–260 GHz) due to the second, third, and fourth harmonics using a focusing optics system with four quasi-optical mirrors in the upper port of JT-60SA. A Gaussian beam optics design is performed in vacuum, and ray tracing calculations are performed in plasma using the TRAVIS code to investigate density characteristics. A ceramic viewing dump is also designed to reduce the effects of multiple reflections from the opposing vacuum vessel surface. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index