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ICRP International

Conference on Recovery After Nuclear Accidents

Radiological Protection Lessons
from Fukushima and Beyond

December 1 - 18, 2020

V.A. Zheltonozhsky, M.V. Zheltonozhskaya, D.E. Myznikov

Updated: Dec 11, 2020

Non-destructive Method for the Plutonium Isotopes Determination in Environmental Samples

V.A. Zheltonozhsky (Lomonosov Moscow State University, Russia), M.V. Zheltonozhskaya (Lomonosov Moscow State University, Russia), D.E. Myznikov (Institute for Nuclear Research, NAS, Ukraine)


The non-destructive method for the plutonium isotopes content determination in environmental samples is developed. The proposed method is based on the measurement of the characteristic X-rays accompanying the decay of these radionuclides. The proposed method's error limits are 10–15% for samples with activity above 100 Bq and 15–20% for hot samples with activity less than 100 Bq. The cost of one sample measurement and the processing time of the method is significantly reduced compared to traditional study. The proposed method is a reasonably simple measurement method and can be carried out even in the field condition. It opens up new possibilities for the quick study of environmental samples.

環境試料中のプルトニウム同位体定量のための非破壊法

V.A. Zheltonozhsky (Lomonosov Moscow State University, Russia), M.V. Zheltonozhskaya (Lomonosov Moscow State University, Russia), D.E. Myznikov (Institute for Nuclear Research, NAS, Ukraine)


環境サンプル中のプルトニウム同位体含有量定量の非破壊測定法が開発される。提案される方法は、これらの放射性核種の崩壊に伴う特徴的なX線の測定に基づいている。提案された方法の誤差限界は、放射能が100 Bqを超えるサンプルでは10~15%であり、放射能が100 Bq未満のホットサンプルでは15~20%である。従来の研究と比較して、1回のサンプル測定に要するコストとこの方法の処理時間が大幅に削減される。提案される方法は、合理的にシンプルな測定方法であり、現場条件でも実施可能である。これは環境サンプルの迅速な調査に新たな可能性を開くものである。

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