Before revision: Betavoltaic power sources (and the related technology of alphavoltaic power sourcesNASA Glenn Research Center, Alpha- and Beta-voltaics (accessed Oct. 4, 2011)) are particularly well-suited to low-power electrical applications where long life of the energy source is needed, such as implantable medical devices or military and space applications.
After revision: Betavoltaic power sources (and the related technology of alphavoltaic power sourcesNASA Glenn Research Center, Alpha- and Beta-voltaics (accessed October 4, 2011)) are particularly well-suited to low-power electrical applications where long life of the energy source is needed, such as implantable medical devices or military and space applications.