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Related Concept Videos

Atomic Emission Spectroscopy: Instrumentation01:22

Atomic Emission Spectroscopy: Instrumentation

550
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.
550
Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation01:26

Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation

267
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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Emission Spectra02:39

Emission Spectra

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When solids, liquids, or condensed gases are heated sufficiently, they radiate some of the excess energy as light. Photons produced in this manner have a range of energies, and thereby produce a continuous spectrum in which an unbroken series of wavelengths is present.
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IR Spectrometers01:25

IR Spectrometers

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There are two main infrared (IR) spectrophotometers: dispersive IR spectrometers and Fourier transform infrared (FTIR) spectrometers. In a dispersive IR spectrometer, a beam of infrared radiation produced by a hot wire is divided into two parallel equal-intensity beams using mirrors. One beam passes through the sample, while another is a reference beam. The beams then move through the monochromator, which separates the radiations into a continuous spectrum of different frequencies. The...
1.2K
Atomic Emission Spectroscopy: Lab01:29

Atomic Emission Spectroscopy: Lab

217
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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Atomic Emission Spectroscopy: Overview01:20

Atomic Emission Spectroscopy: Overview

2.4K
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...
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Bringing the Visible Universe into Focus with Robo-AO
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In-Flight Performance of the ICON EUV Spectrograph.

Eric J Korpela1, Martin M Sirk1, Jerry Edelstein1

  • 1Space Sciences Laboratory, University of California, Berkeley, CA USA.

Space Science Reviews
|April 3, 2023
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Summary
This summary is machine-generated.

The Ionospheric Connection Explorer EUV spectrometer successfully met performance requirements for observing the lower ionosphere. Its data, including raw products, are vital for determining ion density profiles.

Keywords:
Extreme ultravioletInstrumentationIonosphereSpectrograph

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Area of Science:

  • Space Physics
  • Atmospheric Science
  • Ionospheric Physics

Background:

  • The lower ionosphere is crucial for understanding space weather and atmospheric interactions.
  • Observing the ionosphere requires specialized instruments capable of detecting specific emission lines.

Purpose of the Study:

  • To present in-flight performance measurements of the ICON EUV spectrometer.
  • To validate the instrument's capability in observing the lower ionosphere.
  • To document instrument performance over the first two years of operation.

Main Methods:

  • In-flight calibration and performance measurements.
  • Spectroscopic observation of OII emission lines (61.6 nm and 83.4 nm).
  • Tracking instrument performance changes due to microchannel plate charge depletion.

Main Results:

  • The ICON EUV spectrometer met all science performance requirements.
  • Observed and expected changes in instrument performance were tracked.
  • Raw data products are available for further analysis.

Conclusions:

  • The ICON EUV spectrometer is a reliable instrument for ionospheric research.
  • The collected data supports the determination of O+ density profiles.
  • Instrument performance degradation is understood and monitored.