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Related Concept Videos

High-Resolution Mass Spectrometry (HRMS)01:15

High-Resolution Mass Spectrometry (HRMS)

The resolution of a mass spectrometer depends on the efficiency of separating ions with different ion masses. The mass of an atom is approximated to the sum of the masses of protons and neutrons inside, considering the masses of protons and neutrons as equal. However, the masses of the proton (1.6726 × 10−24 g) and neutron (1.6749 × 10−24 g) are not truly equal. There is a minor error in the expression of atomic masses relative to the simplest atom of hydrogen. For example, the mass of helium...
Raman Spectroscopy Instrumentation: Overview01:26

Raman Spectroscopy Instrumentation: Overview

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...
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).
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Mass Analyzers: Overview01:13

Mass Analyzers: Overview

The mass analyzer is a crucial component of the mass spectrometer. In the ionization chamber, the vaporized sample is bombarded with a high-energy electron beam to generate a radical cation and further fragment into neutral molecules, radicals, and cations. A series of negatively charged accelerator plates accelerate the cations into the mass analyzer. The mass analyzer separates ions according to their mass-to-charge (m/z) ratios and then directs them to the detector. The common types of mass...
IR Spectrometers01:25

IR Spectrometers

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...
Super-resolution Fluorescence Microscopy01:37

Super-resolution Fluorescence Microscopy

Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been developed.

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Related Experiment Video

Updated: Jun 17, 2026

Rapid Scan Electron Paramagnetic Resonance Opens New Avenues for Imaging Physiologically Important Parameters In Vivo
08:01

Rapid Scan Electron Paramagnetic Resonance Opens New Avenues for Imaging Physiologically Important Parameters In Vivo

Published on: September 26, 2016

A high resolution rapid-scanning spectrometer.

I Liberman1, C H Church, J A Asars

  • 1Westinghouse Research Laboratories,Pittsburgh, Pennsylvania 15235, USA.

Applied Optics
|January 9, 2010
PubMed
Summary
This summary is machine-generated.

A novel spectrometer design enables rapid spectral analysis with high resolution. This instrument achieves 0.027 A resolution at high scanning rates, suitable for dynamic spectral measurements.

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High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis
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High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis

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Last Updated: Jun 17, 2026

Rapid Scan Electron Paramagnetic Resonance Opens New Avenues for Imaging Physiologically Important Parameters In Vivo
08:01

Rapid Scan Electron Paramagnetic Resonance Opens New Avenues for Imaging Physiologically Important Parameters In Vivo

Published on: September 26, 2016

High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis
13:31

High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis

Published on: December 22, 2015

Area of Science:

  • Spectroscopy
  • Optical Engineering
  • Atomic Physics

Background:

  • Traditional spectrometers often lack the speed for analyzing rapidly changing spectral phenomena.
  • Dynamic processes in plasmas and discharges require instruments capable of high temporal resolution.

Purpose of the Study:

  • To design and operate a Czerny-Turner spectrometer as a rapid scanning instrument.
  • To achieve high spectral resolution at high scanning rates for detailed spectral analysis.

Main Methods:

  • Incorporated a rotating mirror near the exit slit of a Czerny-Turner spectrometer.
  • Utilized a helium-neon gas laser for calibration and resolution testing.
  • Recorded spectral line shifts and shapes in a pulsed arc discharge.

Main Results:

  • Achieved a spectral resolution of 0.027 Angstroms (A) at scanning rates of 0.4 A/microsecond.
  • Demonstrated data acquisition at 6 A/microsecond, with potential for further speed increases.
  • Obtained a scanning range of 1-600 A, adaptable via grating and mirror selection.

Conclusions:

  • The designed rapid scanning spectrometer is effective for high-resolution spectral analysis.
  • The instrument is suitable for studying dynamic spectral events, such as spectral line changes in pulsed discharges.