Table 9.

Activity (in units of kBq) of radioisotopes produced from the ⁶⁸ZnO(no), ⁶⁸ZnO(PE), ⁶⁸ZnO(Pb), and ⁶⁸Zn(PE) samples at the end of irradiation in columns A–E. Columns F and G give the difference of B, C and A divided by A, and column H is a ratio between G and F. In most cases the uncertainties of measured activities are less than 10%

Radioisotope		67Cu	65Ni	65Zn	69mZn	67Ga	66Ga	64Cu
Reaction		(n,x)	(n,α)	(n,4n)	(n,γ)	(p,2n)	(p,3n)	(p,αn)
Ethr.(MeV)		7.9	0	28.7	0	12.2	23.6	7.9
Sample
A	68ZnO(no)	5.7	21	0.016	3.3	1.5	0.5	0.81
B	68ZnO(PE) (d = 3 cm)	5.4	33	<0.021	67	65	11	62
C	68ZnO(PE) (6 cm)	5.9	23	0.018	14	14	6.9	16
D	68ZnO(Pb) (3 cm)	6.1	35	0.022	75	72	15	65
E	68Zn(PE) (3 cm)	6.5	19	0.016	1.4	0.6	0.1	0.99
F	(B − A)/A	−0.5	0.6		19	42	20	76
G	(C − A)/A	0.04	0.1		3.2	8.3	12	19
H	G/F = (C − A)/(B − A)	−0.7	0.2		0.2	0.2	0.6	0.25