在线性等离子装置PSI-2上应用超光谱摄像头进行现场等离子体物质相互作用研究
Changjun Li1,2, Sebastijan Brezinsek2,3, Stephan Ertmer2
1Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China.
The Review of scientific instruments
|August 1, 2023
概括
超光谱成像 (HSI) 用于诊断等离子体,并研究在光等离子体中的喷射. 该技术提供2D等离子体参数图和现场喷射分析,补充现有的光学发射光谱法.
科学领域:
- 等离子体物理学的物理学
- 光学光谱学是指光学光谱学.
- 材料科学 材料科学 材料科学
背景情况:
- 线性等离子器件对于聚变能源研究至关重要.
- 精确的血诊断和理解血物质相互作用是必不可少的.
- 现有的光学发射光谱技术在空间和光谱分辨率方面存在局限性.
研究的目的:
- 应用超光谱成像 (HSI) 进行高级等离子体诊断和等离子体-物质相互作用研究.
- 在等离子体中获得电子温度和密度的二维成像.
- 为了研究使用HSI. 在光等离子体中的喷.
主要方法:
- 使用 Specim IQ 超光谱摄像机在 400-1000 nm 范围内进行成像.
- 进行了放射测量校准和背景减法.
- 补充了HSI的Langmuir探针和高分辨率光谱仪用于验证和详细分析.
主要成果:
- 在等离子体中使用HSI和HeI线比实现了第一个电子温度和密度辐射轮的二维成像.
- 在现场量化的喷,同时测量喷的和光等离子体的二维分布.
- 证明了HSI能够从等离子体和杂质中区分多个排放线的能力.
结论:
- HSI为等离子体诊断和等离子体物质相互作用研究提供了一个有价值的新工具.
- 该技术在光谱,空间和时间分辨率之间提供了良好的妥协.
- HSI补充了现有的光学发射光谱法,允许详细的等离子体特征.
相关概念视频
01:19Inductively Coupled Plasma–Mass Spectrometry (ICP–MS): Overview
792
In inductively coupled plasma–mass spectrometry (ICP–MS), an inductively coupled plasma (ICP) torch is used as an atomizer and ionizer. Solid samples are dissolved and volatilized before being introduced into the high-temperature argon plasma, while solution samples are nebulized and passed through the high-temperature argon plasma. Plasma dissociates the analytes and ionizes their component atoms to form a mixture of positive ions and molecular species. The positive ions are then...
792
01:19Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle
700
Inductively coupled plasma (ICP) is the most widely used plasma source in atomic emission spectroscopy (AES), also known as Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES). The ICP source, or torch, consists of three concentric quartz tubes with argon gas flowing through them. A spark from a Tesla coil initiates the ionization of argon, generating a high-temperature plasma.
The ions and electrons produced interact with the fluctuating magnetic field created by a water-cooled...
The ions and electrons produced interact with the fluctuating magnetic field created by a water-cooled...
700
01:26Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation
254
Inductively coupled plasma (ICP) is the common plasma source used in atomic emission spectroscopy (AES), a technique that detects and analyzes various elements in a sample. This method is often called inductively coupled plasma atomic emission spectroscopy (ICP-AES).
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used....
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used....
254
01:29Atomic Emission Spectroscopy: Lab
198
AES is a powerful analytical technique, especially effective when used with plasma sources, producing abundant spectra in characteristic emission lines. The Inductively Coupled Plasma (ICP), in particular, yields superior quantitative analytical data due to its high stability, low noise, low background, and minimal interferences under optimal experimental conditions. However, newer air-operated microwave sources are emerging as promising alternatives that could be more cost-effective than...
198
01:22Atomic Emission Spectroscopy: Instrumentation
525
The instrumentation of atomic emission spectrometry (AES) involves various components, including atomization devices that convert samples into gas-phase atoms and ions. There are two main types of atomization devices: continuous and discrete atomizers. Continuous atomizers, like plasmas and flames, introduce samples in a constant stream, while discrete atomizers inject individual samples using syringes or autosamplers. The most common discrete atomizer is the electrothermal atomizer.
525
01:20Atomic Emission Spectroscopy: Overview
2.3K
Atomic emission spectroscopy (AES) is an analytical technique used to determine the elemental composition of a sample by analyzing the light emitted from excited atoms. In AES, atoms in a sample are excited to higher energy levels by thermal energy from high-temperature sources, such as plasma, arcs, or sparks. When these excited atoms return to lower energy states, they emit light at specific wavelengths characteristic of each element. The resulting atomic emission spectrum, which consists of...
2.3K