公开(公告)号：US4495420A

公开(公告)日：1985-01-22

申请号：US372526

申请日：1982-04-28

申请人： Martin Chudy ,  Rudolf Janik ,  Pavol Povinec

发明人： Martin Chudy ,  Rudolf Janik ,  Pavol Povinec

IPC分类号： G01T1/00 ,  G01T1/20

CPC分类号： G01T1/003

摘要： Process of and apparatus for the simultaneous determination of the concentration of a plurality of radioactive gases. Radioactive gas containing several beta radionuclides is led into a separate chamber where their concentration is determined simultaneously and selectively by using a plastic multi-layer scintillator. The energy of the emitted beta radiation further identifies single radionuclides, and it determines them selectively and quantitatively by carrying out an amplitude discrimination of the registered impulses. The process can be carried out continuously or discontinuously. The multi-layer scintillation chamber is composed of a light-tight casing in which plates of plastic scintillators having suitable dimensions and location are placed in spaced relationship, such plates being connected on each end of the casing with a photomultiplier through a light-guide.

摘要翻译： 用于同时测定多种放射性气体的浓度的方法和装置。 含有多个β放射性核素的放射性气体被引入分开的室中，其中通过使用塑料多层闪烁体同时且选择性地测定其浓度。 发射的β辐射的能量进一步识别单个放射性核素，并且通过执行注册的脉冲的幅度鉴别来选择性地和定量地确定它们。 该过程可以连续或不连续地进行。 多层闪烁室由不透光外壳构成，其中具有适当尺寸和位置的塑料闪烁体的板以间隔的关系放置，这些板通过光导通过光电倍增管连接在壳体的每一端。