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首页> 外文期刊>Review of Scientific Instruments >Versatile Technique for Measuring Fluorescence Decay Times in the Nanosecond Region
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Versatile Technique for Measuring Fluorescence Decay Times in the Nanosecond Region

机译：用于测量纳秒区荧光衰减时间的多功能技术

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摘要

A new method of accurately recording scintillation pulse contours over several decades is described. Scintillation pulses are analyzed by an apparatus which combines the very fast rise time of a pulse sampling oscilloscope and the digital storage capacity of a multichannel analyzer. A special feature of this technique is its ability to accept, within limits, pulses random in time and amplitude so that fluorescence from samples excited either by pulsed uv radiation, β, or α particles may be analyzed. This apparatus, in combination with a hydrogen flash tube and a monochromator, has been used to measure the decay time of fluorescent solutions as a function of the wavelength of the exciting radiation. Decay time measurements have also been made for various modes of excitation: α particle, β particle, and pulsed uv.
机译：描述了一种精确记录数十年来闪烁脉冲轮廓的新方法。闪烁脉冲由一种设备进行分析，该设备将脉冲采样示波器的快速上升时间与多通道分析仪的数字存储容量结合在一起。该技术的一个特殊功能是能够在一定范围内接受时间和幅度随机的脉冲，从而可以分析来自被脉冲uv辐射，β或α颗粒激发的样品的荧光。该装置与氢闪管和单色仪结合在一起，已被用于测量荧光溶液的衰减时间，该衰减时间是激发辐射波长的函数。还对各种激发模式进行了衰减时间测量：α粒子，β粒子和脉冲uv。

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