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Related Concept Videos

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.
Atomic Emission Spectroscopy: Instrumentation01:22

Atomic Emission Spectroscopy: Instrumentation

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.
Mass Spectrometers01:16

Mass Spectrometers

This lesson details the instrumentation of a mass spectrometer—a physical instrument to perform mass spectrometry on analyte molecules and record the characteristic mass spectra. This is achieved via three chief functions:
Tandem Mass Spectrometry01:21

Tandem Mass Spectrometry

Tandem mass spectrometry is a technique that uses multiple mass analyzers in series to obtain a higher selectivity and reduce chemical noise during analyte detection. Instruments with multiple analyzers separated by an interaction cell enable secondary fragmentation and selected study of the fragment ions.Secondary fragmentations occur in the interaction cell and can be induced by various factors. Fragmentation induced by collision with inert gases, such as N2, Ar, He, etc., is called...
Atomic Absorption Spectroscopy: Instrumentation01:22

Atomic Absorption Spectroscopy: Instrumentation

An atomic absorption spectrophotometer (AAS) comprises several components: a radiation source, an atomizer, a monochromator, and a detector. The radiation source can be a hollow-cathode lamp (HCL) or an electrodeless-discharge lamp (EDL), both of which provide a narrow emission line of the required wavelength. However, some instruments use continuum sources and high-resolution monochromators to achieve a narrow range of radiation.
The atomizer used in AAS can be either a flame atomizer or an...
Transmission Electron Microscopy01:15

Transmission Electron Microscopy

In 1931, physicist Ernst Ruska—building on the idea that magnetic fields can direct an electron beam just as lenses can direct a beam of light in an optical microscope—developed the first prototype of the electron microscope. This development led to the development of the field of electron microscopy. In the transmission electron microscope (TEM), electrons are produced by a hot tungsten element and accelerated by a potential difference in an electron gun, which gives them up to 400 keV in...

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Related Experiment Video

Updated: Jun 7, 2026

Quantitative Atomic-Site Analysis of Functional Dopants/Point Defects in Crystalline Materials by Electron-Channeling-Enhanced Microanalysis
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Quantitative Atomic-Site Analysis of Functional Dopants/Point Defects in Crystalline Materials by Electron-Channeling-Enhanced Microanalysis

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Development of multi-channel electron spectrometer.

T Iwawaki1, H Habara, T Tanimoto

  • 1Graduate School of Engineering, Osaka University, Yamada-oka, 2-1, Suita, Osaka 565-0871, Japan.

The Review of Scientific Instruments
|November 2, 2010
PubMed
Summary
This summary is machine-generated.

Researchers developed a multichannel electron spectrometer (MCESM) to measure electron energy distributions. This new spectrometer achieved high resolution, enabling detailed analysis of laser-target interactions.

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Electron Channeling Contrast Imaging for Rapid III-V Heteroepitaxial Characterization
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Quantitative Atomic-Site Analysis of Functional Dopants/Point Defects in Crystalline Materials by Electron-Channeling-Enhanced Microanalysis
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07:50

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Published on: July 17, 2015

Area of Science:

  • Plasma Physics
  • Laser-Matter Interaction

Background:

  • Understanding electron energy distributions is crucial for diagnosing high-energy-density plasma experiments.
  • Previous methods lacked the necessary angular and energy resolution to fully characterize electron emission.

Purpose of the Study:

  • To develop and validate a novel multichannel electron spectrometer (MCESM) for precise measurement of angular-dependent electron energy distributions.
  • To investigate electron spectra from laser-irradiated targets with high resolution.

Main Methods:

  • Development of a multichannel electron spectrometer (MCESM) comprising seven spectrometers with 5° angular separation.
  • Each spectrometer designed for high energy and angular resolution, with a detection range up to 25 MeV.
  • Experimental application to cone-shell and gold plane targets irradiated by ultraintense laser pulses (300 J/5 ps).

Main Results:

  • Successful acquisition of angular-dependent electron energy spectra from both target types.
  • Demonstration of the MCESM's capability to provide high-resolution data in complex laser-plasma interactions.
  • Obtained electron spectra reveal detailed characteristics of electron emission under ultraintense laser irradiation.

Conclusions:

  • The developed MCESM is a powerful tool for characterizing electron dynamics in laser-driven plasmas.
  • The high-resolution measurements provide critical data for validating plasma and laser-interaction models.
  • This advancement facilitates a deeper understanding of energy transport and particle acceleration mechanisms in such experiments.