• 作者： 陳清江; 陳炳宏; 林友明
• 作者服務機構： 行政院原子能委員會臺灣輻射偵測工作站
• 中文摘要： 本文採用除濕機冷凝法收集每日大氣中水蒸氣樣品，配合電解濃縮技術和液體閃爍計數器之計測，對大氣中氚濃度提供一簡易而可靠之偵測方法，其最低可測活性達50微微居里／升‧水（0.84微微居里／升‧空氣），適宜一般環境中氚濃度之度量。本文並針對中共第25次核爆產生的氚對本省大氣中氚含量之影響作一連續的分析，度量73個樣品所得數據和氣象因素之變動頗為一致，顯示本方法之可用性。本法並適用於核能電廠所排放氣態氚之監測。
• 英文摘要： The atomospheric water vapor was con-densed and collected by a household dehumi-differ. The samples were enriched by alkalineelectrolytic method and counted by LiquidScintillation Counting System. The minimumdetectable activity of this method was 50pCi/·water (0.84pCi/m‧air) which is muchlower than the tritium concentrations ofenvironmental air samples. The atmospherictritium concentrations of Kaohsiung weremeasured continuously after the 25th nucleardetonation of mainland China. The measureddata showed a good coincidence with thevariation of meteorological conditions. Thedeveloped method was shown to be avaliableand reliable for the measurement of tritiumin environmental air samples. This methodalso could be used to monitor the gaseoustritium released from Nuclear Power Plant.
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