Laser Diagnostics of Content of Hydrogen Isotopes in the Globus-M2 Tokamak Wall

IF 0.9 4区物理与天体物理 Q4 PHYSICS, FLUIDS & PLASMAS

Plasma Physics Reports Pub Date : 2024-07-30 DOI:10.1134/S1063780X24600853

A. G. Razdobarin, O. S. Medvedev, I. M. Bukreev, D. L. Bogachev, A. M. Dmitriev, D. I. Elets, E. V. Smirnova, L. A. Snigirev, V. B. Minaev, A. N. Novokhatsky, I. V. Miroshnikov, S. V. Filippov, M. V. Grishaev, Yu. M. Gasparyan

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Abstract

Mock-up of the system for remote monitoring of the accumulation of hydrogen isotopes in the walls of the Globus-M2 tokamak was assembled and tested. The measurements were performed using the LIA-QMS laser diagnostics (laser-induced ablation with registration using quadrupole mass-spectrometry). The data were obtained on the content of hydrogen isotopes in deposits appearing after exposing tungsten collectors to the loads in the volume of the Globus M tokamak. After testing the diagnostics under laboratory conditions, it was mounted at the Globus-M2 facility. In-situ measurements of the content of hydrogen isotopes in the graphite tiles of the tokamak divertor were performed. The possibility of combining the L-IA‑QMS diagnostics with the LIBS (laser-induced emission spectroscopy) diagnostics has been confirmed, in order to obtain information on the composition of the ablated material. In addition, the LIBS method was used for obtaining the deuterium/protium isotopic ratio during measurements in the Globus-M2 facility.

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对 Globus-M2 托卡马克壁中氢同位素含量的激光诊断

摘要用于远程监测 Globus-M2 托卡马克内壁氢同位素积累情况的模拟系统已经组装完成并进行了测试。测量是利用 LIA-QMS 激光诊断（利用四极质谱仪进行登记的激光诱导烧蚀）进行的。这些数据是在 Globus M 托卡马克中将钨收集器暴露于负载后出现的沉积物中氢同位素的含量。在实验室条件下对诊断仪进行测试后，将其安装在 Globus-M2 设备上。对托卡马克岔道石墨瓦中的氢同位素含量进行了现场测量。将 L-IA-QMS 诊断与 LIBS（激光诱导发射光谱）诊断相结合的可能性已得到确认，以便获得有关烧蚀材料成分的信息。此外，在 Globus-M2 设施的测量过程中，还利用 LIBS 方法获得了氘/氕同位素比值。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Plasma Physics Reports 物理-物理：流体与等离子体

CiteScore

1.90

自引率

36.40%

发文量

104

审稿时长

4-8 weeks

期刊介绍： Plasma Physics Reports is a peer reviewed journal devoted to plasma physics. The journal covers the following topics: high-temperature plasma physics related to the problem of controlled nuclear fusion based on magnetic and inertial confinement; physics of cosmic plasma, including magnetosphere plasma, sun and stellar plasma, etc.; gas discharge plasma and plasma generated by laser and particle beams. The journal also publishes papers on such related topics as plasma electronics, generation of radiation in plasma, and plasma diagnostics. As well as other original communications, the journal publishes topical reviews and conference proceedings.