The half-life of ⁶⁷Cu was determined through serial gamma-ray spectrometry measurements of the dominant gamma emission (E _γ : 184.6 keV; branching ratio: 48.7%) produced following β- decay. Data were collected consecutively for 1000 s per measurement, with a total of 3063 measurements over the duration of 36 days. The incidence rate for the 184.6 keV gamma-ray was determined from the spectral peak area and duration of each measurement. This rate was then corrected to account for detector dead-time, radioactive decay during each acquisition and drift in the computer clock in comparison to NIST nuclear clock. Least-squares regression analysis was performed to determine the half-life of ⁶⁷Cu. The result was 61.7610.004 h, which is the highest precision measurement to date, and marks a 24-fold precision improvement over the current Nuclear Data Sheets value.

⁶⁷ Cu的半衰期是通过对β - 衰变后产生的主要伽马发射（E _γ：184.6 keV；支化率：48.7%）进行连续伽马射线光谱测量来确定的。每次测量连续收集数据 1000 秒，在 36 天的持续时间内总共进行 3063 次测量。184.6 keV 伽马射线的入射率由每次测量的光谱峰面积和持续时间确定。然后对该速率进行校正，以说明每次采集期间的探测器死区时间、放射性衰变以及计算机时钟与 NIST 核时钟相比的漂移。进行最小二乘回归分析以确定⁶⁷ 铜。结果是 61.7610.004 小时，这是迄今为止最高精度的测量，与当前核数据表值相比，精度提高了 24 倍。