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ERIC Number: EJ1012205
Record Type: Journal
Publication Date: 2013-Feb
Pages: 4
Abstractor: As Provided
Reference Count: 9
ISBN: N/A
ISSN: ISSN-0021-9584
Temperature and Electron Density Determination on Laser-Induced Breakdown Spectroscopy (LIBS) Plasmas: A Physical Chemistry Experiment
Najarian, Maya L.; Chinni, Rosemarie C.
Journal of Chemical Education, v90 n2 p244-247 Feb 2013
This laboratory is designed for physical chemistry students to gain experience using laser-induced breakdown spectroscopy (LIBS) in understanding plasma diagnostics. LIBS uses a high-powered laser that is focused on the sample causing a plasma to form. The emission of this plasma is then spectrally resolved and detected. Temperature and electron number density of the plasma can be determined from the characteristics of the spectrum. Temperature was calculated using the Boltzmann plot method, whereas electron density was determined from Stark broadening considerations. Students learned how to use the information provided by the LIBS spectrum to obtain plasma temperatures and electron densities for various samples. This experiment is appropriate for a physical chemistry course. (Contains 1 table and 2 figures.)
Division of Chemical Education, Inc and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail: eic@jce.acs.org; Web site: http://pubs.acs.org/jchemeduc
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education; Postsecondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A