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1离子探测器自通用工业感烟探测器在20世纪70年代初被推出后,由于设备的设计和制造相对简单,离子探测技术一直占据主导优势。20世纪70年代中期,这些探测器使用镭作为电离源,因为镭能以较弱的放射性迅速快地转变为镅241(241Am)。离子感烟探测器在电离室内使用α粒子源电离空气分
Ion Detector Since the introduction of the General Industrial Smoke Detector in the early 1970s, ion-detection technology has been dominant due to the relatively simple equipment design and manufacturing. In the mid-1970s, these detectors used radium as the source of ionization because radium rapidly changed to 241 (241Am) with weak radioactivity. Ionization Smoke Detectors Use the alpha particle source to ionize air in an ionization chamber