TABLE 3

Spatial Resolutions for 4 Radionuclides Measured with Glass Capillaries Surrounded by Water

	Mean β+ energy (MeV)	Measured profiles			Palmer et al. (18), FWHM-to-FWTM (mm)
Radionuclide	Mean β+ energy (MeV)	FWHM (mm)	FWTM (mm)	FWHM-to-FWTM (mm)	Palmer et al. (18), FWHM-to-FWTM (mm)
¹⁸F	0.25	1.81	3.57	0.51	0.54
⁶⁸Ga	0.83	2.46	6.52	0.38	0.39
¹²⁴I	0.83	2.38	5.87	0.41	0.39
⁸⁹Zr	0.40	1.99	4.01	0.50	0.50

FWHM-to-FWTM ratios are indicative of deviation from gaussian profiles. Values were not corrected for source dimensions.