Temperature Dependence of ${\rm Ce}^{3+}$ and ${\rm Pr}^{3+}$ Emission in ${\rm CaF}_{2}$, ${\rm BaF}_{2}$, ${\rm SrF}_{2}$

The paper is devoted to investigation of BaF
₂
, SrF
₂
, CaF
₂
doped with different concentrations of praseodymium or cerium as scintillator for well-logging. Temperature dependences of light yield at the higher then room temperatures, pulsed-height and emission spectra of fluorides were measured.