Radionuclide Reference · MIRF · UBC

Imaging & therapy isotopes,in one table.

Half-lives, decay modes, and the imaging- and therapy-relevant emissions for the radionuclides used across preclinical PET, SPECT, and radionuclide therapy.

Reference

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Type an isotope, application, or energy; filter by modality; click a column header to sort.

Isotope ↕	Modality ↕	Half-life ↕	Decay mode ↕	Key emissions ↕

PET — positron emitter, imaged via 511 keV annihilation SPECT — single-photon γ emitter Therapy — α or β⁻ emitter Source — calibration / phantom

Values here are rounded for quick bench reference. For exact energies, intensities, and full decay schemes, look up any nuclide at NNDC NuDat 3 ↗ or the IAEA Live Chart ↗.

Half-lives match the MIRF decay & activity calculator; emission energies and intensities are rounded literature values for the principal imaging or therapy emissions, and are not exhaustive. Several isotopes serve more than one role (e.g. Lu-177 and I-131 are both imaged and therapeutic; Cu-64 emits β⁺, β⁻ and Auger electrons). For dosimetry, regulatory or radiation-safety reporting, or any quantitative work, confirm against a primary nuclide database such as NNDC NuDat 3 or IAEA Live Chart.

Molecular Imaging Research Facility · UBC · invivoimaging.ca

Version 1.0 · Last updated June 2026