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相关概念视频

Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation01:26

Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation

183
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....
183
Atomic Emission Spectroscopy: Instrumentation01:22

Atomic Emission Spectroscopy: Instrumentation

329
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.
329
Atomic Emission Spectroscopy: Lab01:29

Atomic Emission Spectroscopy: Lab

143
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...
143
Atomic Emission Spectroscopy: Overview01:20

Atomic Emission Spectroscopy: Overview

1.4K
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...
1.4K
Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle01:19

Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle

495
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...
495

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相关实验视频

Updated: May 28, 2025

Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry
07:17

Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry

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加速等离子体和辐射表面科学使用瞬态格光谱学.

A P C Wylie1, K B Woller1, M Rae1

  • 1Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.

The Review of scientific instruments
|February 11, 2025
PubMed
概括
此摘要是机器生成的。

研究与等离子体和辐射的相互作用揭示了表面声波速度的变化,但仅仅来自等离子体的热扩散率没有变化. 离子辐射减少了这两种特性,突出了聚变材料中的合效应.

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Emission Spectroscopic Boundary Layer Investigation during Ablative Material Testing in Plasmatron
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Investigation of Early Plasma Evolution Induced by Ultrashort Laser Pulses
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相关实验视频

Last Updated: May 28, 2025

Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry
07:17

Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry

Published on: August 1, 2017

12.6K
Emission Spectroscopic Boundary Layer Investigation during Ablative Material Testing in Plasmatron
09:41

Emission Spectroscopic Boundary Layer Investigation during Ablative Material Testing in Plasmatron

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Investigation of Early Plasma Evolution Induced by Ultrashort Laser Pulses
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科学领域:

  • 材料科学 材料科学 材料科学
  • 等离子体物理学的物理学
  • 核工程 核工程是指核工程.

背景情况:

  • 聚变能源系统需要能够承受极端条件的材料.
  • 了解辐射材料和等离子体材料相互作用对于核聚变反应堆的寿命至关重要.

研究的目的:

  • 展示一个用于实地调查辐射材料和等离子体材料相互作用的设施.
  • 探测等离子暴露和自我离子辐射对属性的影响.

主要方法:

  • 运用过渡格谱法测量了热扩散率和表面声波速度.
  • 的样本被暴露在等离子体和10.26 MeV的自我离子辐射中.

主要成果:

  • 在645°C的等离子体暴露引起了表面声波速度的显著变化,但不是热扩散性.
  • 自离子辐射 (7.92dpa) 降低了中的热扩散率和表面声波速度.
  • 观察到的表面声波速度的变化在等离子体暴露后为2542 m/s至2565 m/s,然后是2499 m/s,在离子辐射后为2647.8 m/s至2640.0 m/s.

结论:

  • 开发的设施有效地探测了合等离子体和辐射对材料的影响.
  • 结果为设计未来核聚变能源系统的坚固材料提供了关键数据.