The Detection of Low Activity in Aqueous Solution Using Cerenkov Radiation

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概要

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• A method by which <90>^Sr activity in water can be detected at a concentration of about 10^<-7> μc/cc has been obtained by using Cerenkov radiation from the water itself. For detecting such a low activity, a large detecting volume is required. Cerenkov radiation is very effective for the purpose, because the path length of Cerenkov radiation induced by beta ray is extremely large (about 15 cm for <32>^P beta ray) as compared with that of the beta ray in water. In the experimental apparatus having a 8 litre detecting volume, the background was found to be 420 cpm with a normal statistical fluctuation. The minimum activity level that can be detected reliably under the presence of the background was 8x10^<-8>μc/cc for <90>^Sr.

• 社団法人日本物理学会の論文
• 1962-05-05

著者

• Yamada Shuji

  Hitachi Central Research Laboratory

関連論文

• The Detection of Low Activity in Aqueous Solution Using Cerenkov Radiation

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