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Related Concept Videos

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.
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...
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...
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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Related Experiment Video

Updated: Jun 15, 2026

Neutron Radiography and Computed Tomography of Biological Systems at the Oak Ridge National Laboratory's High Flux Isotope Reactor
10:24

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Published on: May 7, 2021

Control system for the Spallation Neutron Source H- source test facility Allison scanner.

C D Long1, M P Stockli, T V Gorlov

  • 1Spallation Neutron Source, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA. l8g@ornl.gov

The Review of Scientific Instruments
|March 3, 2010
PubMed
Summary
This summary is machine-generated.

Researchers improved the H(-) ion source operation at the Spallation Neutron Source using an Allison scanner. This system enhances ion beam power by optimizing the source

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Area of Science:

  • Particle Accelerators
  • Ion Source Technology
  • Neutron Science

Background:

  • The Spallation Neutron Source (SNS) is undergoing a multiyear plan to increase ion beam power to 1.4 MW.
  • Optimizing the H(-) ion source is critical for achieving the SNS's design power.

Purpose of the Study:

  • To detail the hardware and software control system of an Allison scanner installed on the H(-) ion source.
  • To support the understanding and improvement of H(-) ion source operation for SNS power ramp-up.

Main Methods:

  • Installation of an Allison scanner, including scanner head, bias plates, slits, and signal detector.
  • Utilized analog-controlled high voltage power supplies, a motor-driven positioning system, and a multifunction data acquisition card.
  • Developed control software using National Instruments LABVIEW for synchronized data acquisition and offline analysis.

Main Results:

  • The Allison scanner system hardware and software control architecture were successfully implemented.
  • Data acquisition was synchronized with the ion source trigger for accurate measurements.
  • A comprehensive system for monitoring and analyzing ion source performance was established.

Conclusions:

  • The developed Allison scanner system provides essential tools for improving H(-) ion source performance.
  • This work is crucial for the Spallation Neutron Source's goal of reaching 1.4 MW ion beam power.
  • The implemented hardware and software facilitate detailed analysis for future optimization efforts.