Table 2.

Source positions for the measurements with the five NEMA cubes.

	Constant Vbias				Constant Vov
NEMA cube	x/mm	y/mm	z/mm	Activity/MBq	x/mm	y/mm	z/mm	Activity/MBq
1	−0.6	−1.8	−0.5	1.48	−2.7	−11.8	−37.9	1.35
2	−1.3	−1.7	30.2	1.37	−1.9	−9.8	−18.7	1.26
3	−0.6	−1.8	−15.5	1.28	−1.6	−9.9	−1.4	1.17
4	−1.5	−1.7	14.4	1.25	−2.4	−10.9	12.9	1.15
5	−0.2	−1.8	−32.1	1.20	−2.3	−11.8	29.7	1.10