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Related Concept Videos

Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation01:26

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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).
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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.
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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...
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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...
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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.
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Atomic spectroscopy is a vital tool in elemental analysis, both qualitatively and quantitatively. It can be broadly divided into optical spectroscopy, mass spectroscopy, and X-ray spectroscopy methods. The optical spectroscopic methods are atomic absorption spectroscopy (AAS), atomic emission spectroscopy (AES), and atomic fluorescence spectroscopy (AFS). The first step in all three methods is atomization, where the solid, liquid, or solution-phase samples are converted into gas-phase atoms and...
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Related Experiment Video

Updated: Mar 12, 2026

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser
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A two-dimensional angular-resolved proton spectrometer.

Su Yang1, Xiaohui Yuan1, Yuan Fang1

  • 1Key Laboratory for Laser Plasmas (Ministry of Education) and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China.

The Review of Scientific Instruments
|November 3, 2016
PubMed
Summary
This summary is machine-generated.

A new two-dimensional (2D) angular-resolved spectrometer fully characterizes ultrashort intense laser-driven proton sources. This novel design uses a pinhole array and magnets to precisely measure proton beam properties from laser-target interactions.

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Area of Science:

  • Plasma Physics
  • Laser-driven particle acceleration
  • Spectroscopy

Background:

  • Ultrashort intense laser interactions with matter generate energetic particle beams.
  • Characterizing these proton beams is crucial for understanding laser-plasma dynamics and applications.
  • Existing methods may not provide comprehensive angular and energy distribution data.

Purpose of the Study:

  • To introduce a novel two-dimensional (2D) angular-resolved spectrometer.
  • To enable full beam characterization of ultrashort intense laser-driven proton sources.
  • To demonstrate its capability in analyzing protons from laser-foil interactions.

Main Methods:

  • A rotated 2D pinhole array samples the proton beam into discrete beamlets.
  • A pair of parallel permanent magnets disperses the beamlets angularly.
  • A planar detector records the dispersed beamlets without overlap.

Main Results:

  • The spectrometer successfully sampled and dispersed proton beamlets.
  • Representative experimental data of protons from femtosecond laser-foil interaction were obtained.
  • The design allows for full characterization of the proton beam's angular distribution.

Conclusions:

  • The novel 2D angular-resolved spectrometer is effective for characterizing laser-driven proton sources.
  • The employed pinhole array and magnetic dispersion method provide detailed beam information.
  • This technique advances the study of ultrashort intense laser-plasma interactions.