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Title: Homogeneity testing and quantitative analysis of manganese (Mn) in vitrified Mn-doped glasses by laser-induced breakdown spectroscopy (LIBS)

Laser-induced breakdown spectroscopy (LIBS), an atomic emission spectroscopy method, has rapidly grown as one of the best elemental analysis techniques over the past two decades. Homogeneity testing and quantitative analysis of manganese (Mn) in manganese-doped glasses have been carried out using an optimized LIBS system employing a nanosecond ultraviolet Nd:YAG laser as the source of excitation. The glass samples have been prepared using conventional vitrification methods. The laser pulse irradiance on the surface of the glass samples placed in air at atmospheric pressure was about 1.7×10{sup 9} W/cm{sup 2}. The spatially integrated plasma emission was collected and imaged on to the spectrograph slit using an optical-fiber-based collection system. Homogeneity was checked by recording LIBS spectra from different sites on the sample surface and analyzing the elemental emission intensities for concentration determination. Validation of the observed LIBS results was done by comparison with scanning electron microscope- energy dispersive X-ray spectroscopy (SEM-EDX) surface elemental mapping. The analytical performance of the LIBS system has been evaluated through the correlation of the LIBS determined concentrations of Mn with its certified values. The results are found to be in very good agreement with the certified concentrations.
Authors:
; ; ;  [1] ;  [2] ;  [3] ; ; ;  [4]
  1. Department of Atomic and Molecular Physics, Manipal University, Manipal (India)
  2. Nuclear Recycle Board, Bhabha Atomic Research Centre, Mumbai (India)
  3. Process Development Division, Bhabha Atomic Research Centre, Mumbai (India)
  4. Laser and Plasma Technology Division, Bhabha Atomic Research Centre, Mumbai (India)
Publication Date:
OSTI Identifier:
22300244
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Advances; Journal Volume: 4; Journal Issue: 9; Other Information: (c) 2014 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; DOPED MATERIALS; EMISSION; EMISSION SPECTROSCOPY; GLASS; MANGANESE; NEODYMIUM LASERS; OPTICAL FIBERS; PLASMA; PULSES; SCANNING ELECTRON MICROSCOPY; SPECTRA; SURFACES; VALIDATION; X-RAY SPECTROSCOPY