Half-life measurements of lutetium-176 using underground HPGe-detectors

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  • Mikael Hult
  • Tim Vidmar
  • Ulf Rosengard
  • Gerd Marissens
  • Namik Sahin

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The half-life of Lu-176 was determined by measuring the Lu-176 activity in metallic lutetium foils. Three different HPGe-detectors located 225 m underground were employed for the study. Measurements using the sum-peak method were performed and resulted in an average massic activity of 52.61±0.36 Bq•g-1. The foils were of natural isotopic abundance so using the massic activity and the value of the natural isotopic abundance of 2.59±0.01%, a half-life of (3.722±0.029) 10^10 yr could be calculated.


Original languageEnglish
Pages (from-to)112-117
JournalApplied Radiation and Isotopes
Publication statusPublished - May 2014
Event19th International Conference on Radionuclide Metrology and its Applications - International Committee on Radionuclide Metrology, Anwerp, Belgium
Duration: 17 Jun 201321 Jun 2013


  • Sum-peak method, Underground laboratory, Lutetium

ID: 225080