Microdosimetry for Targeted Alpha Therapy of Cancer

Table 2

Physical properties of alpha-particle emitters.

Radionuclide	𝑍	Half-life	Mean particle energy* (MeV)	Maximum energy (MeV)	Average range (μm)	<LET> (keV/μm)
^211At	85	7.2 h	6.79	7.45	60	71
^213Bi	83	45.6 min	8.32	8.38	84	61
^223Ra	88	11.43 d	5.64	7.59	45	81
^225Ac	89	10.0 d	6.83	8.38	61	71

*weighted average of emissions.