Доступ предоставлен для: Guest
Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes
SJR: 0.137 SNIP: 0.341 CiteScore™: 0.43

ISSN Печать: 1093-3611
ISSN Онлайн: 1940-4360

Том 23, 2019 Том 22, 2018 Том 21, 2017 Том 20, 2016 Том 19, 2015 Том 18, 2014 Том 17, 2013 Том 16, 2012 Том 15, 2011 Том 14, 2010 Том 13, 2009 Том 12, 2008 Том 11, 2007 Том 10, 2006 Том 9, 2005 Том 8, 2004 Том 7, 2003 Том 6, 2002 Том 5, 2001 Том 4, 2000 Том 3, 1999 Том 2, 1998 Том 1, 1997

High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes

DOI: 10.1615/HighTempMatProc.v4.i4.50
8 pages


E. Ershov-Pavlov
B.I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, Minsk, Belarus
K. L. Stepanov
Laboratory of Dispersed Systems - Laboratory of Radiative Gas Dynamics - Heat & Mass Transfer Institute, National Academy of Sciences, 15 P.Brovka Str., 220072 Minsk, Belarus

Краткое описание

The paper presents the results of the OES technique to measure local parameters of inhomogeneous fluctuating plasmas using spectral line profiles in the plasma total emission. The technique does not require time-resolved recording of the emission. The plasma time behaviour is accounted for using prior observations at the necessary time resolution. Two cases have been examined: quasi-periodic and stochastic time changes of plasma temperature. Simple equations are found to obtain profile characteristics (half-widths, shifts) of a spectral line for the plasma local (in time and space) emissivity using the line spectral profile in the plasma volume emission during the observation time. The characteristics can be applied for the plasma diagnostics. An extensive numerical simulation is performed for emission spectra of the plasma volumes having different spatial distributions and time behaviour of the parameters. The results have been compared with the analytical approximations. Resulting data have confirmed the technique applicability and allowed to find limits of the technique use and possible errors.