First electron temperature and density measurements using the multi-pass Thomson scattering system with the laser amplification system in GAMMA 10/PDX

被引：2

作者：

Yoshikawa, M. ^{[1
]}

Mouri, T. ^{[1
]}

Nakanishi, H. ^{[1
]}

Kohagura, J. ^{[1
]}

Shima, Y. ^{[1
]}

Sakamoto, M. ^{[1
]}

Nakashima, Y. ^{[1
]}

Ezumi, N. ^{[1
]}

Minami, R. ^{[1
]}

Yamada, I ^{[2
]}

Yasuhara, R. ^{[2
]}

Funaba, H. ^{[2
]}

Minami, T. ^{[3
]}

Kenmochi, N. ^{[4
]}

机构：

[1] Univ Tsukuba, Plasma Res Ctr, Tsukuba, Ibaraki 3058577, Japan

[2] Natl Inst Fus Sci, Toki, Gifu 5095292, Japan

[3] Kyoto Univ, Inst Adv Energy, Uji, Kyoto 6110011, Japan

[4] Univ Tokyo, Grad Sch Frontier Sci, Kashiwa, Chiba 2778561, Japan

来源：

JOURNAL OF INSTRUMENTATION | 2020年 / 15卷 / 08期

关键词：

Plasma diagnostics - interferometry; spectroscopy and imaging; Nuclear instruments and methods for hot plasma diagnostics;

D O I：

10.1088/1748-0221/15/08/T08011

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The multi-pass Thomson scattering (MPTS) has been used for multiplying the TS signal intensities and improving the time resolution of TS measurement. In the simple MPTS system, the MP signal intensities decrease with the pass number, because of the damping due to the optical components in the system. We have been developing the new MPTS system using the laser amplification system. The laser amplification system can improve the degraded laser power. We had successfully obtained the long duration of MP signals in the gas scattering experiments. After optimizing the laser trajectory and the optical components, we obtained the clear MP signals in the gas scattering experiments. Moreover, we applied the MPTS with amplification system to GAMMA 10/PDX plasma and successfully obtained the electron temperature and density for the first time.

引用

页数：9

共 50 条

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