Half-Life of 229mTh Isomers in an Acid Solution

An experiment is performed to observe photons of the isomeric transition of energy E is ≈ 8 eV in 229 m Th nuclei, obtained by eluting a hydrochloric acid solution from an ion-exchange column with 233 U. Thorium in the solution exists in the form of 4+ ions, and isomeric transitions are possible due...

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Veröffentlicht in:	Bulletin of the Russian Academy of Sciences. Physics 2023-12, Vol.87 (12), p.1928-1932
Hauptverfasser:	Koltsov, V. V., Kuzmina, T. E.
Format:	Artikel
Sprache:	eng
Schlagworte:	Hadrons Half-life Heavy Ions Hydrochloric acid Ion exchange Isomers Nuclear Physics Photon emission Photons Physics Physics and Astronomy Thorium
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Beschreibung
Zusammenfassung:	An experiment is performed to observe photons of the isomeric transition of energy E is ≈ 8 eV in 229 m Th nuclei, obtained by eluting a hydrochloric acid solution from an ion-exchange column with 233 U. Thorium in the solution exists in the form of 4+ ions, and isomeric transitions are possible due to the emission of photons only. The attenuation of photon emission gives the half-life of the isomer: T 1/2 is ≈260 min.
ISSN:	1062-8738 1934-9432
DOI:	10.1134/S1062873823704312