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Medical · Theranostic
Y
39
86

Yttrium-86

The positron-emitting (β⁺) imaging partner to therapeutic Yttrium-90, enabling accurate pre-treatment PET dosimetry within theranostic workflows.

t½ 14.7 hoursPositron Emission (β⁺)
39 e⁻5 shells

Atomic Structure

39
Protons
47
Neutrons
K2 e⁻
L8 e⁻
M18 e⁻
N9 e⁻
O2 e⁻

Applications

  • PET dosimetry for Y-90 therapy
  • Theranostic imaging
  • Peptide receptor studies
  • Monoclonal antibody labeling

Production

Reaction
⁸⁶Sr(p,n)⁸⁶Y
Target
Enriched ⁸⁶Sr
Source
16 MeV Cyclotron
16 MeV CyclotronYes
30 MeV CyclotronYes
70 MeV CyclotronYes
Nuclear ReactorNo

Threshold ~4.5 MeV, optimal 11–15 MeV.