EJNMMI Physics

Table 1 Comparison of ⁶⁸Ga, ⁴⁴Sc, and ⁴³Sc nuclear properties

From: Cyclotron production of ⁴³Sc for PET imaging

	⁶⁸Ga	⁴⁴Sc	⁴³Sc
T _1/2 [h]	1.14	3.92	3.89
β⁺ [% emission]	89	95	88
E _β+max [MeV]	1.90	1.47	1.20
E _γ [keV]	1077 (3 %)	1157.0 (99 %)	372.8 (23 %)
Generator production	⁶⁸Ge (T _1/2 = 270.8 days)/⁶⁸Ga	⁴⁴Ti (T _1/2 = 60.4 y)/⁴⁴ Sc	^–
Cyclotron production	⁶⁸Zn(p,n)⁶⁸Ga	⁴⁴Ca(p,n)⁴⁴Sc	⁴³Ca(p,n)⁴³Sc
		⁴⁴Ca(d,2n)⁴⁴Sc	⁴²Ca(d,n)⁴³Sc
			^natCa(α,p)⁴³Sc
			^natCa(α,n)⁴³Ti→⁴³Sc

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