関連する実験動画

Updated: May 4, 2026

A Basic Positron Emission Tomography System Constructed to Locate a Radioactive Source in a Bi-dimensional Space
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A Basic Positron Emission Tomography System Constructed to Locate a Radioactive Source in a Bi-dimensional Space

Published on: February 1, 2016

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自然ビスムスの放射性分解からアルファ粒子を実験的に検出

Pierre de Marcillac1, Noël Coron, Gérard Dambier

  • 1Institut d'Astrophysique Spatiale, CNRS & Université Paris Sud, UMR 8617, Bât. 121, 91405 Orsay Cedex, France. pierre.demarcillac@ias.u-psud.fr

Nature
|April 25, 2003
PubMed
まとめ

ビスムス-209 (209Bi) は,かつて安定したと考えられていたが,アルファ-腐敗を経験している. 研究者は,敏感な冷凍検出器を使用して,この希少なイベントを成功裏に検出し,その転移安定性を確認し,非常に長い半減期を測定しました.

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