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Related Concept Videos

Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle01:19

Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle

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...
Inductively Coupled Plasma–Mass Spectrometry (ICP–MS): Overview01:19

Inductively Coupled Plasma–Mass Spectrometry (ICP–MS): Overview

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 passed on to...
Atomic Emission Spectroscopy: Lab01:29

Atomic Emission Spectroscopy: Lab

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...
Atomic Emission Spectroscopy: Overview01:20

Atomic Emission Spectroscopy: Overview

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...
Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation01:26

Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation

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.

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Applying X-ray Imaging Crystal Spectroscopy for Use as a High Temperature Plasma Diagnostic
06:46

Applying X-ray Imaging Crystal Spectroscopy for Use as a High Temperature Plasma Diagnostic

Published on: August 25, 2016

High sensitivity imaging Thomson scattering for low temperature plasma.

H J van der Meiden1, R S Al, C J Barth

  • 1FOM-Institute for Plasma Physics Rijnhuizen, Association EURATOM-FOM, partner in the Trilateral Euregio Cluster, P.O. Box 1207, 3430 BE Nieuwegein, The Netherlands.

The Review of Scientific Instruments
|February 6, 2008
PubMed
Summary
This summary is machine-generated.

A new imaging Thomson scattering system enhances low-temperature plasma diagnostics. This system achieves high spatial resolution for electron density and temperature measurements, crucial for plasma research.

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Area of Science:

  • Plasma Physics
  • Diagnostic Techniques

Background:

  • Low-temperature plasmas require precise diagnostic tools.
  • Existing methods may lack the necessary sensitivity or spatial resolution.

Purpose of the Study:

  • To develop a highly sensitive imaging Thomson scattering system.
  • To enable accurate measurement of plasma parameters in low-temperature applications.

Main Methods:

  • Utilized a neodymium-doped yttrium aluminum garnet laser (532 nm).
  • Implemented a unique stray light suppression system.
  • Employed a Littrow spectrometer with an intensified CCD camera and image intensifier.

Main Results:

  • Achieved spatial resolution of 0.6 mm for a 30 mm plasma column.
  • Demonstrated observational errors of 3% for electron density (n(e)) and 6% for electron temperature (T(e)).
  • Stray light contribution below 9 x 10(17) m(-3) in electron density equivalents.

Conclusions:

  • The developed system offers high sensitivity and spatial resolution for plasma diagnostics.
  • Enables accurate electron density and temperature profiling in low-temperature plasmas.
  • Single-shot measurements are feasible for high electron densities (n(e)>2 x 10(21) m(-3)).