Development of a Magnetic Confinement Attachment for Enhanced Signal in Handheld Laser Induced Breakdown Spectroscopy Soil Analysis

Abstract

Field techniques for characterizing low levels of heavy elements of less than 100 parts per million in soils tend to be unreliable because of the relatively weak signal of these elements and the large, variable background inherent to analyzing soils with minimal sample preparation. To enhance the detection and analysis capability of a handheld laser-induced breakdown spectroscopy (LIBS) instrument, this work investigates the effects of a unique magnetic confinement apparatus on signal intensities, focusing on five iron lines as well as those from actinides in 11 soil samples. The proposed magnetic confinement apparatus achieved over 0.8 T but did not amplified the elements' peak intensities of the samples equally.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2021
Accession Number
AD1157171

Entities

People

  • Alfred C. Jr Anderson

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Advanced Electronics
  • Sensors

DTIC Thesaurus Topics

  • Actinides
  • Air Force
  • Chemical Analysis
  • Chemistry
  • Detection
  • Detectors
  • Electric Discharges
  • Electrons
  • Energy
  • Ionizing Radiation
  • Lasers
  • Measurement
  • Optics
  • Rare Earth Elements
  • Spectra
  • Spectral Lines
  • Spectroscopy

Readers

  • Image Processing and Computer Vision.
  • Pulsed Power and Plasma Physics.
  • Regression Analysis.

Technology Areas

  • Directed Energy