The Air Kerma Rate of 125I sources is determined by the well-type ionization chamber.Thereafter the apparent activity of 125I sources is calculated and measured results are anylyzed.
采用井型电离室
125I
子源的空气比释动能率，
而估算出125I子源的表观
（
称等效），并对结果行了分析。
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坊 坊 Outside of this device these electrons and positively charged atmospheric ions would eventually recombine and become neutral, however in this contraption, called an ionization chamber, we want to use alpha decay to help us detect smoke.
在
个装置之外， 
子和带正的大气离子最终会重新结合并变为中性，然而在个称为离室的装置中，我们想使用α衰变来帮助我们探测烟雾。
