High-precision γ -ray spectroscopy of the cardiac PET imaging isotope Rb 82 and its impact on dosimetry

M. N. Nino, E. A. McCutchan, S. V. Smith, C. J. Lister, J. P. Greene, M. P. Carpenter, L. Muench, A. A. Sonzogni, S. Zhu

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Rb82 is a positron-emitting isotope used in cardiac positron emission tomography (PET) imaging which has been reported to deliver a significantly lower effective radiation dose than analogous imaging isotopes like Tl201 and 99mTc sestamibi. High-quality β-decay data are essential to accurately appraise the total dose received by the patients. A source of Sr82 was produced at the Brookhaven Linac Isotope Producer (BLIP), transported to Argonne National Laboratory, and studied with the Gammasphere facility. Significant revisions have been made to the level scheme of Kr82 including 12 new levels, 50 new γ-ray transitions, and the determination of many new spin assignments through angular correlations. These new high-quality data allow a precise reappraisal of the β-decay strength function and thus the consequent dose received by patients.

Original languageEnglish
Article number024301
JournalPhysical Review C
Issue number2
Publication statusPublished or Issued - 1 Feb 2016
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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