TABLE 2.

Comparison of Production Routes for ⁶¹Cu

Target	Target material	Target material cost/mg	Nuclear reaction	Target concentration or weight	Beam current (μA)	Irradiation time (min)	Activity produced (GBq)
Liquid	natZn	$0.003	natZn(p,α)61Cu	200 mg/mL	70	180	1.8 ± 0.2
Liquid	64Zn	$0.5–0.7	64Zn(p,α)61Cu	200 mg/mL	70	180	3.3 ± 0.4
Solid	natNi	$0.005	natNi(d,n)61Cu	80 mg	60	60	2.0 ± 0.2
Solid	61Ni	$20–25	61Ni(p,n)61Cu	50 mg	40	30	3.5 ± 0.5