YAG-Thomson Scattering System in GAMMA 10/PDX Central and End Cells

Autor: Ichihiro Yamada, Ryo Yasuhara, Junko Kohagura, Naomichi Ezumi, Ryutaro Minami, Hisamichi Funaba, Naoki Kenmochi, Yoriko Shima, Mizuki Sakamoto, Takashi Minami, Yousuke Nakashima, T. Mouri, H. Nakanishi, Tomoya Yamasaki, Masayuki Yoshikawa, Shun Suto
Rok vydání: 2019
Předmět:
Zdroj: Plasma and Fusion Research. 14:2402002-2402002
ISSN: 1880-6821
DOI: 10.1585/pfr.14.2402002
Popis: We developed an yttrium aluminum garnet (YAG)-Thomson scattering (TS) system for radial profile measurements of electron temperature and density in the GAMMA 10/PDX central cell. The optical collection system for TS light was constructed from three spherical mirrors and nine bundled optical fibers. The radial positions were intervals less than 5cm in the range of ±20 cm and were measured by moving the fixed fiber bundle position from shot to shot. We constructed a multi-pass TS system with laser amplification, which can increase the signal intensity and time resolution of the TS diagnostic system. In addition, we installed the end-TS system using the central-TS YAG laser in order to measure the electron temperature and density in a divertor simulation experimental module in the GAMMA 10/PDX end cell.
Databáze: OpenAIRE