DOUBLE-PULSE TECHNIQUE FOR THE EVALUATION OF THE SATURATION PARAMETER IN SINGLE-SHOT LASER-INDUCED FLUORESCENCE MEASUREMENTS - AN APPLICATION TO LEAD IN A FLAME

被引：5

作者：

CIGNOLI, F ^{[1
]}

BENECCHI, S ^{[1
]}

ZIZAK, G ^{[1
]}

机构：

[1] CNR,IST RICERCHE PROPULS & ENERGET,CPNM,I-20068 PESCHIERA GARDA,ITALY

来源：

SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY | 1995年 / 50卷 / 08期

关键词：

DOUBLE PULSE; LASER INDUCED FLUORESCENCE; LEAD; SATURATION PARAMETER;

D O I：

10.1016/0584-8547(95)01315-6

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

The enlargement of the probe volume in saturated laser induced fluorescence measurement is a considerable drawback for absolute concentration measurements. For practical purposes, a double pulse technique was developed allowing determination of the saturation parameter, which has a major influence on the probe volume enlargement. The technique is based on the detection of the fluorescence produced by two time-delayed laser pulses of different intensity. The basic theory of the technique is presented, together with the results of an experimental application to Pb in an acetylene/air flame. The implications for absolute concentration measurements are also discussed.

引用

页码：847 / 855

页数：9