The evaluated experimental data are presented and evaluated for 13 known nuclides of mass 64 (Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, As, Se). For each nuclide, the best values combining all available data are recommended for spectroscopic properties. No excited states have been identified in ⁶⁴Ti, ⁶⁴As, and ⁶⁴Se. Only one excited state in ⁶⁴V as an isomer, and three in ⁶⁴Cr have been identified. Data for excited states in ⁶⁴Mn, ⁶⁴Fe, and ⁶⁴Co remain limited. ⁶⁴Ni, ⁶⁴Cu, and ⁶⁴Zn are the most studied nuclides through various reactions and decays, followed by ⁶⁴Ga and ⁶⁴Ge. In the opinion of the evaluators, there are several incomplete or discrepant aspects of the high-spin portion of the level scheme for ⁶⁴Zn above ≈5 MeV excitation which need to be resolved in further experiments using large γ-detector arrays. The decay schemes of ⁶⁴Ti β⁻, ⁶⁴As ε and ⁶⁴Se ε are unknown, while very little information is available for ⁶⁴V β⁻ and ⁶⁴Cr β⁻. The decay schemes of ⁶⁴Mn β⁻, ⁶⁴Fe β⁻, ⁶⁴Co β⁻ and ⁶⁴Ge ε are somewhat better known, but still considered incomplete by evaluators. The decay scheme of ⁶⁴Ga ε decay is known in detail, however there is the possibility of additional levels populated above 4713 keV, as the Q(ε) value is 7171 keV. The β⁻, β⁺ and ε decay modes of ⁶⁴Cu are well known, as this radionuclide is of great importance in applications, for example, as a dosimeter for neutron flux determination in nuclear reactors, and as a radiopharmaceutical for positron emission tomography (PET). This work supersedes earlier full evaluations of A=64 by 2007Si04, 1996Si12, 1991Si03, 1979Ha35 and 1974Au04.

提供并评估了 13 种已知质量为 64 的核素（Ti、V、Cr、Mn、Fe、Co、Ni、Cu、Zn、Ga、Ge、As、Se）的评估实验数据。对于每种核素，推荐结合所有可用数据的最佳值用于光谱特性。在⁶⁴ Ti、⁶⁴ As 和⁶⁴ Se 中没有发现激发态。⁶⁴ V 中只有一种激发态作为异构体，⁶⁴ Cr 中只有三种激发态已被鉴定。⁶⁴ Mn、⁶⁴ Fe 和⁶⁴ Co 中激发态的数据仍然有限。⁶⁴镍、⁶⁴铜和⁶⁴Zn 是通过各种反应和衰变研究最多的核素，其次是⁶⁴ Ga 和⁶⁴ Ge。在评估者看来，⁶⁴ Zn 高于 ≈5 MeV 激发的能级方案的高自旋部分有几个不完整或不一致的方面，需要在使用大型γ探测器阵列的进一步实验中解决。⁶⁴ Ti β ^-、⁶⁴ As ε和⁶⁴ Se ε的衰变方案未知，而⁶⁴ V β ^-和⁶⁴ Cr β 的信息很少^- . ⁶⁴ Mn β ^-、⁶⁴ Fe β ^-、⁶⁴ Co β ^-和⁶⁴ Ge ε的衰变方案在某种程度上更为人所知，但仍被评估者认为是不完整的。详细了解⁶⁴ Ga ε衰变的衰变方案，但是有可能在 4713 keV 以上填充额外的能级，因为 Q( ε ) 值为 7171 keV。⁶⁴的β ^-、β ⁺和ε衰减模式铜是众所周知的，因为这种放射性核素在应用中非常重要，例如，作为用于核反应堆中子通量测定的剂量计，以及作为用于正电子发射断层扫描 (PET) 的放射性药物。这项工作取代了 2007Si04、1996Si12、1991Si03、1979Ha35 和 1974Au04 之前对 A=64 的全面评估。