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.
采用井型电离室测定125I粒
空气比释动能率，
而估算出125I粒
活度（又称等效活度），并对结果行了分析。
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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.
在这个装置之外， 这些电子和带正电的大气离子最终会重新结合并变为
性，然而在这个称为电离室的装置，
想使用α衰变来帮助探测烟雾。
