Abstract

${\mathrm{Ti}}^{44}$ has been produced by the ${\mathrm{Sc}}^{45}(d, 3n){\mathrm{Ti}}^{44}$ reaction. The radiations of ${\mathrm{Ti}}^{44}$ were studied with gamma-scintillation spectrometers alone and in coincidence. A decay scheme is suggested in which ${\mathrm{Ti}}^{44}$ electron captures predominantly to a 144-kev level in ${\mathrm{Sc}}^{44}$ which in turn de-excites by two gamma rays in cascade. A ${\mathrm{Ti}}^{44}$ half-life of approximately ${10}^{3}$ years is deduced.

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