Table 4.

Enhancement range for all materials and all concentrations for energies of 60 and 226 MeV.

Material	Enhancement range (mm)
	0.01 mg ml−1		0.1 mg ml−1		6.5 mg ml−1
	60 MeV	226 MeV	60 MeV	226 MeV	60 MeV	226 MeV
Ag	0.58	5.2	0.50	5.6	0.46	4.1
Au	0.57	5.6	0.51	5.1	0.45	4.1
Pt	0.52	5.6	0.54	5.1	0.44	4.0