Key points are not available for this paper at this time.
We report a candidate with unique advantages in the cultivation of solid-state nuclear clock material, Th: SrF2 crystal. It not only has a segregation coefficient close to 1, which can achieve highly efficient and uniform doping of Th, but also ensures a high transmittance (~69% at 150 nm) while achieving extremely high doping concentration (232Th>6*10²0 cm^ (-3). In addition, SrF2 crystal will not be irradiated-colored under strong radiation like CaF2 crystal, Th: SrF2 crystal is expected to fully unleash its high concentration doping characteristics while ensuring its transmission performance in nuclear transition band not be severely affected by 229Th radiation damage.
Gong et al. (Wed,) studied this question.