Química Nova | |
Photomultiplier nonlinear response in time-domain laser-induced luminescence spectroscopy | |
Leandro José Bossy Schip1  Bruno Phelippe Buzelatto1  Fábio Roberto Batista1  Carlos Jorge Da Cunha1  Lauro Camargo Dias Jr.1  João Batista Marques Novo1  | |
[1] ,Universidade Federal do Paraná Departamento de Química Curitiba PR ,Brasil | |
关键词: photomultiplier; time-resolved; laser-induced luminescence; | |
DOI : 10.1590/S0100-40422007000100034 | |
来源: SciELO | |
【 摘 要 】
A new procedure to find the limiting range of the photomultiplier linear response of a low-cost, digital oscilloscope-based time-resolved laser-induced luminescence spectrometer (TRLS), is presented. A systematic investigation on the instrument response function with different signal input terminations, and the relationship between the luminescence intensity reaching the photomultiplier and the measured decay time are described. These investigations establish that setting the maximum intensity of the luminescence signal below 0.3V guarantees, for signal input terminations equal or higher than 99.7 ohm, a linear photomultiplier response.
【 授权许可】
CC BY-NC
All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License
【 预 览 】
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RO202005130061981ZK.pdf | 459KB | download |