Table 2.

Sc radionuclide release from target materials used at ISOLDE.

Target Material	Operated Temperature, °C	Release Conditions
${ }^{nat}$Ti metallic foils	>1600	W surface ion source. Fluorination with CF${ }_4$. Only Sc${ }^{+}$ and ScF${ }^{+}$ observed and target molten after mass separation [36].
${ }^{nat}$TiC (1–50 $\mathsf{\mu }$m)	1900	Slow release that did not increase by fluorination with CF${ }_4$ [28].
	2300	No Sc released [31].
${ }^{nat}$TiC-CNT (nanometric)	1500	No Sc released. [20].
${ }^{nat}$TiC-CB (nanometric)	1500–1740	Re surface source. No Sc was released. [20].
${ }^{nat}$V powder	1800	No Sc released [31].
${ }^{nat}$VC (1–50 $\mathsf{\mu }$m)	1900	Slow release that did not increase by fluorination with CF${ }_4$ [28].
	2300	No Sc released. Higher other radionuclide release rates than from ${ }^{nat}$TiC [31].