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NYH-1型^(14)C核素高灵敏探测装置 被引量:1

NYH-1 HIGHLY SENSITIVE DETECTOR TO 14-CARBON
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摘要 本文描述了可测量低活度1 4 C核素的高灵敏探测装置。在FH 36 7探头的基础上进行了改装 ,更换了闪烁介质 ,增加了物质屏蔽和反符合屏蔽以及相应的电子线路。本装置对1 4 C的探测效率 ,植物干样为 6 93% ,土壤样为 3 2 % ,装置的本底计数为 2 A highly sensitive detector for determining the 14 C in low activity has been developed. Its background is 2\^35cpm, and its detection efficiencies to the dry samples of corn and soil are 6\^93% and 3\^2%, respectively.
出处 《核农学报》 CAS CSCD 2000年第4期230-233,共4页 Journal of Nuclear Agricultural Sciences
关键词 碳14 β放射性核素 低本底测量装置 植物 土壤 C detection efficiency low background
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