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Related Concept Videos

Atomic Emission Spectroscopy: Overview01:20

Atomic Emission Spectroscopy: Overview

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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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Atomic Emission Spectroscopy: Lab01:29

Atomic Emission Spectroscopy: Lab

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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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Atomic Emission Spectroscopy: Instrumentation01:22

Atomic Emission Spectroscopy: Instrumentation

1.4K
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.
1.4K
Raman Spectroscopy Instrumentation: Overview01:26

Raman Spectroscopy Instrumentation: Overview

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A conventional Raman spectrophotometer includes a laser source, a sample holding system, a wavelength selector, and a detector.
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
1.5K
Atomic Absorption Spectroscopy: Radiation and Light Sources01:13

Atomic Absorption Spectroscopy: Radiation and Light Sources

1.4K
Atomic absorption spectroscopy (AAS) relies on the Beer-Lambert law, which requires that the radiation source emits a narrow range of wavelengths to match the absorption characteristics of the analyte atom. The primary criteria for choosing an appropriate radiation source in AAS is to provide a precise and intense emission at specific wavelengths that will allow accurate detection of the analyte.
Two common narrow-range 'line' sources used in AAS are hollow-cathode lamps (HCLs) and...
1.4K
Atomic Absorption Spectroscopy: Instrumentation01:22

Atomic Absorption Spectroscopy: Instrumentation

1.9K
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...
1.9K

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A gamma-ray spectrometry analysis software environment.

G Lutter1, M Hult1, G Marissens1

  • 1European Commission, Joint Research Centre (JRC-Geel), Retieseweg 111, B-2440 Geel, Belgium.

Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine
|July 11, 2017
PubMed
Summary
This summary is machine-generated.

New software simplifies quantitative gamma-ray spectrometry analysis using Monte Carlo simulations and an Excel calculation sheet. This tool enhances accessibility for non-experts, improving data robustness in radionuclide metrology.

Keywords:
Analysis softwareDecay generatorGamma-ray spectrometryMonte Carlo

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Area of Science:

  • Nuclear Physics
  • Metrology
  • Computational Science

Background:

  • Quantitative gamma-ray spectrometry is crucial for radionuclide analysis.
  • Existing methods can be complex and require specialized expertise.
  • The need for accessible and robust analytical tools is increasing.

Purpose of the Study:

  • To develop a simplified and robust software solution for quantitative gamma-ray spectrometry.
  • To enable non-experts, including external researchers, to perform complex analyses.
  • To present the developed Monte Carlo software and its accompanying calculation sheet functionality.

Main Methods:

  • Development of a Monte Carlo code based on the EGSnrc framework.
  • Implementation of a general-purpose calculation sheet in Microsoft Excel®.
  • Integration of software components for user-friendly operation.

Main Results:

  • A user-friendly software package for quantitative gamma-ray spectrometry analysis.
  • Enhanced robustness and simplicity in sample analysis procedures.
  • Facilitation of access for external researchers through the EUFRAT scheme.

Conclusions:

  • The developed software significantly simplifies and enhances the robustness of quantitative gamma-ray spectrometry.
  • The tool empowers non-experts to conduct sophisticated analyses, broadening research accessibility.
  • This advancement supports the broader scientific community utilizing radionuclide metrology facilities.