Decay properties of 97m,gTc

T. Kobayashi*, K. Sueki, M. Ebihara, M. Imamura, H. Nakahara

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


The half-life of 97gTc was re-measured using the parental relations between 97Ru and 97m,gTc, and the isotope dilution method for determining the number of atoms, and γ and X-ray spectrometry for determining the absolute disintegration rate. The proposed half-life is (4.21 ± 0.16) × 106 yr. The half life of 97mTc and the EC-decay branching ratio of 97mTc to 97Mo were determined to be (91.4 ± 0.8) d and (3.94 ± 0.18)%, respectively. The EC decay branching ratio of 97Ru to 97mTc was also re-determined to be (1.71 ± 0.02) × 10-4.

Original languageEnglish
Pages (from-to)367-378
Number of pages12
JournalNuclear Physics A
Issue number4
Publication statusPublished - 1998 Jul 6
Externally publishedYes


  • Radioactivity Ru, Tc, Tc (EC) [from Mo(α, 2n)Ru, E = 27 MeV, Ru (EC) → Tc]

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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