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    • 7. 发明授权
    • Automatic radioactivity analyzer of mixed liquid beta emitter
    • 混合液体β发射器的自动放射性分析仪
    • US07619222B2
    • 2009-11-17
    • US11919978
    • 2005-07-15
    • Cheol-Su KimByung-Hwan RhoChang-Kyu Kim
    • Cheol-Su KimByung-Hwan RhoChang-Kyu Kim
    • G01N21/01G01N21/51G01N23/10G01N23/12
    • G01T1/204G01T7/02Y10T436/15Y10T436/25875
    • The present invention relates to an automatic radioactivity analyzer of mixed liquid beta emitter which comprises: a sample preparation part (1, 2, 3, 4, 5, 6, and 7) for extracting a liquid sample from liquid-phase radioactive nuclear wastes; a sample injection part (9 and 10), including a sample transportation part for transporting a bottled sample to a radioactivity detection part to perform measurement; the radioactivity detection part (11) including two photon multiplier tubes; an exterior gamma-ray source injection part (12) for compensating for measurement efficiency according to quenching effects; a signal processing part (13), including a pre-amplifier circuit (14), a high-voltage generator circuit (15), an analogue-to-digital converter circuit (21), and a digital signal processor (DSP) (24), for generating beta spectrums by the aid of a fast coincidence counter (20) and a multi-channel analyzer (22); a main control PC (25) and a graphic user interface (GUI) program (29) for remotely automatically measuring the sample and analyzing the beta emitter; and an Ethernet communication part (28) for performing the remote-control of the analyzer and long-range reception/transmission of the measured data.
    • 本发明涉及一种混合液体β发射器的自动放射性分析仪,其包括:用于从液相放射性核废料中提取液体样品的样品制备部分(1,2,3,4,5,6和7); 样品注射部件(9和10),包括用于将瓶装样品运送到放射性检测部件进行测量的样品输送部件; 所述放射性检测部(11)包括两个光子倍增管; 用于根据淬火效应补偿测量效率的外部γ射线源注入部分(12); 信号处理部分(13),包括前置放大器电路(14),高压发生器电路(15),模拟 - 数字转换器电路(21)和数字信号处理器(DSP)(24) ),用于通过快速符合计数器(20)和多通道分析器(22)的帮助产生β谱; 用于远程自动测量样品并分析β发射器的主控制PC(25)和图形用户界面(GUI)程序(29) 以及用于执行分析仪的远程控制和测量数据的远程接收/发送的以太网通信部分(28)。