CXRS measurements of ion temperature profile in NBI shots of the Globus-M spherical tokamak

被引：13

作者：

Larionova, M. M. ^{[1
]}

Miroshnikov, I. V. ^{[1
]}

Gusev, V. K. ^{[1
]}

Minaev, V. B. ^{[1
]}

Patrov, M. I. ^{[1
]}

Petrov, Yu. V. ^{[1
]}

Sakharov, N. V. ^{[1
]}

Schegolev, P. B. ^{[1
]}

Telnova, A. Yu. ^{[1
]}

Bakharev, N. N. ^{[1
]}

机构：

[1] Ioffe Inst, St Petersburg, Russia

来源：

INTERNATIONAL CONFERENCE PHYSICA.SPB/2019 | 2019年 / 1400卷

关键词：

PLASMA;

D O I：

10.1088/1742-6596/1400/7/077018

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Ion temperature is one of the most important parameters of high-temperature plasma. Information on the ion temperature spatial distribution is necessary for understanding and modelling of particle and energy transport processes, evaluating the effectiveness of plasma heating system operation. Active spectroscopy also known as CXRS (Charge eXchange Recombination Spectroscopy) is a powerful diagnostic tool for measurements of local values of ion temperature, and is widely used in experiments with magnetic confinement of high-temperature plasma. Active spectroscopy diagnostics on the Globus-M tokamak utilizes a tangentially injected heating beam of neutrals (hydrogen or deuterium atoms). The CXRS-system setup is described. The results of ion temperature measurements for the last Globus-M experimental campaign before the machine shutdown and further upgrading to higher values of magnetic field and plasma current are presented. Ion temperature significant rise in the experiments with moderate increasing of toroidal magnetic field and plasma current is detected and discussed.

引用

页数：4

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