Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/77892
Type: Artigo de periódico
Title: TIME-RESOLVED LUMINESCENCE SPECTROSCOPY - COMPUTER INTERFACING AND SOFTWARE-DEVELOPMENT FOR A BOXCAR-BASED LASER-LUMINESCENCE SPECTROMETER
Author: NOVO, JBM
PESSINE, FBT
Abstract: The undesirable resistance-capacitance (RC) distortion coming from the exponential moving averaging process of a boxcar integrator/averager acquisition system in kinetic and spectral luminescence measurements could be effectively eliminated by interfacing it to a microcomputer. Accurate acquisition of luminescence decay curves and time-resolved spectra was provided by a developed software that allows synchronous scan control of the gate delay time in the boxcar integrator with the emission wavelength in the monochromator. Some simple mathematical calculation routines, including excited-state lifetime extraction from luminescence decay curves and normalization of time-resolved spectra, were added. The main characteristics of both the software and the interfacing hardware are reported.
Subject: LUMINESCENCE
TIME-RESOLVED SPECTROSCOPY
LUMINESCENCE INSTRUMENTATION
LUMINESCENCE DECAY CURVES
LUMINESCENCE LIFETIME MEASUREMENT
BOXCAR INTEGRATOR
COMPUTER APPLICATION
DATA ACQUISITION SOFTWARE
Country: EUA
Editor: Soc Applied Spectroscopy
Rights: aberto
Date Issue: 1993
Appears in Collections:Unicamp - Artigos e Outros Documentos

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