[Retracted] The Copper Radioisotopes: A Systematic Review with Special Interest to ⁶⁴Cu

Table 1

Main characteristic of the medically relevant Cu radioisotopes.

Isotope	𝑇1/2	Decay mode	Energy (keV)	Production
					Incident beam energy (MeV)	Reaction	Yield at recovery (MBq/𝜇Ah or MBq/mg)
^60Cu	23.7 min	𝛽^+ (93%)	2940	Cyclotron	11	^60Ni(p,n)^60Cu	370
		𝛾 (7%)	511/467/826/1332
^61Cu	3.32 h	𝛽^+ (60%)	1159	Cyclotron	19	^61Ni(p,n)^61Cu	573**
		𝛾 (40%)	511/283/589/656
^62Cu	9.7 min	𝛽^+ (98%)	2925	Cyclotron	5–14	^62Ni(p,n)^62Cu	19800**
		𝛾 (2%)	511
^64Cu	12.7 h	𝛽^+ (19%)	657	Cyclotron	12	^64Ni(p,n)^64Cu	243***
		𝛾 (43%)	511/1346		19	^64Ni(d,2n)^64Cu	388***
		𝛽^− (38%)	141		ND	^natZn(p,xn)^64Cu	67
				Reactor	1.8*	^64Zn(n,p)^64Cu	14.5****
					ND	^63Cu(n,𝛾)^64Cu	ND
^67Cu	61.83 h	𝛽^− (100%)	390/482/575		ND	^68Zn(p,2p)^67Cu	ND
		𝛾 (52%)	91/93/185	Cyclotron	ND	^70Zn(p,a)^67Cu	ND
					ND	^67Zn(n,p)^67Cu	ND
					ND	^68Zn(g,p)^67Cu	ND

ND: data not available.
*Approximate minimum neutron energy.
**Predicted yield.
***Maximum of results.
****Mean of results.