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粒子源的空气比释动
，
算出125I粒子源的表观活度（又称等效活度），并对结果行了分析。
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