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Title: Brass plasmoid in external magnetic field at different air pressures

The behavior of expanding brass plasmoid generated by 266 nm wavelength of Nd:YAG laser in nonuniform magnetic field at different air pressures has been examined using optical emission spectroscopy and fast imaging of plasma plumes. The splitting of the plasma plumes and enhancement of intensity of Cu I at 510.5 nm in the presence of magnetic field at lower pressures are discussed. The threading and expulsion of the magnetic field lines through the plasmoid are correlated with the ambient pressure. The stoichiometry of the plasma plume is not significantly influenced by the magnetic field; however, the abundance of neutral to ionic species of Cu and Zn is greatly influenced by the magnetic field.
Authors:
;  [1] ;  [2]
  1. Department of Physics, Indian Institute of Technology Kanpur, Kanpur, UP 208016 (India)
  2. WCI-Center for Quantum-Beam Based Radiation Research, Korea Atomic Energy Research Institute, Daojeon (Korea, Republic of)
Publication Date:
OSTI Identifier:
22218572
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 20; Journal Issue: 10; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; AIR; BRASS; EMISSION SPECTROSCOPY; LASER-PRODUCED PLASMA; MAGNETIC FIELDS; MAGNETOHYDRODYNAMICS; NEODYMIUM LASERS; PLASMA DIAGNOSTICS; PLASMA EXPANSION; PLASMA PRESSURE; PLASMA PRODUCTION; STOICHIOMETRY; WAVELENGTHS