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    • 53. 发明授权
    • Liquid scintillation spectrometry system for sample analysis
    • 用于样品分析的液相色谱分析系统
    • US3715586A
    • 1973-02-06
    • US3715586D
    • 1968-02-05
    • INTERTECHNIQUE SA
    • THOMAS ERAPKIN E
    • G01T1/204G01T1/20
    • G01T1/204
    • A liquid scintillation spectrometer system includes several discriminator channels and a single amplification chain consisting of several pre-adjusted linear amplifiers providing, for example, three pre-adjusted ranges in the gain ratios of 1, 10, 100. Thus 32P can be counted in a channel with a gain of 1 and tritium can be counted in a channel with a gain of 100. A range switch proceeds each pulse height analyzer permitting any isotope to be counted in any channel. In an alternative system, similar in principle, signals are taken from several dynodes of the photomultipliers, for example the ninth dynodes, the 11th dynodes and the 13th dynodes.
    • 液体闪烁光谱仪系统包括几个鉴别器通道和由几个预先调节的线性放大器组成的单个放大链,其提供例如增益比为1,10,100的三个预调节范围。因此,32P可以计数在 增益为1的信道和氚的通道可以在增益为100的通道中计数。范围开关进行每个脉冲高度分析器,允许在任何通道中计数任何同位素。 在替代系统中,原理上类似,信号取自光电倍增管的几个倍增电极,例如第九倍增电极,第十一倍增电极和第十三倍频电极。