SCINTILLATOR-BASED NANOSECOND LIGHT-SOURCES FOR TIME-RESOLVED FLUOROMETRY

被引：14
|
作者：
HOBBS, SE [1 ]
HIEFTJE, GM [1 ]
机构：
[1] INDIANA UNIV,DEPT CHEM,BLOOMINGTON,IN 47405
来源：
APPLIED SPECTROSCOPY | 1995年 / 49卷 / 01期
关键词：
TIME-RESOLVED FLUORESCENCE; SINGLE PHOTON COUNTING; EXCITATION SOURCE; SCINTILLATOR;
D O I：
10.1366/0003702953963328
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
We have investigated a new pulsed light source for time-resolved fluorimetry. The light source consists of a beta emitter, Sr-90, and a liquid or plastic scintillator. Time-correlated single photon counting is employed to demonstrate the new pulsed light source. Measured fluorescence lifetimes of standards anthracene(4.97 +/- 0.06 ns) and 1-aminoanthracene (21.4 +/- 0.2 ns) agree well with literature values. Advantages of the new light source include the low cost, the size (1 cm(-3) or smaller), the nanosecond pulse widths, the high pulse rates, and the extremely stable pulse-to-pulse profile. There is no risk of radioactive contamination from the beta emitter since it is bound in a ceramic matrix and encapsulated.
引用
收藏
页码：15 / 19
页数：5
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