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Medical · PET / SPECTNovel
Ti
22
45

Titanium-45

A novel positron emitter (β⁺) with a 3.1-hour half-life, produced on standard medical cyclotrons via ⁴⁵Sc(p,n)⁴⁵Ti. An emerging PET tracer well suited to antibody and peptide imaging.

t½ 3.1 hoursPositron Emission (β⁺)
22 e⁻4 shells

Atomic Structure

22
Protons
23
Neutrons
K2 e⁻
L8 e⁻
M10 e⁻
N2 e⁻

Applications

  • PET oncology imaging (novel)
  • Antibody & peptide labeling
  • Research tracer development
  • Pre-clinical drug development

Production

Reaction
⁴⁵Sc(p,n)⁴⁵Ti
Target
Scandium-45
Source
16 MeV Cyclotron
16 MeV CyclotronYes
30 MeV CyclotronYes
70 MeV CyclotronYes
Nuclear ReactorNo

Threshold ~3 MeV, optimal 13–16 MeV.