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建立了一套４πβ（ＰＣ）－γ（ＨＰＧｅ）符合装置。用参数和效率外推两种方法测定了￣（１９２）Ｉｒ绝对活度，最终不确定度分别为０．４％和０．５％（９９．７％置信水平）．提出了一种用４πβ（Ｐｃ）－γ（ＨＰＧｅ）符合装置、效率外推法测定兼有β、ＥＣ两种衰变方式核素的分支比和绝对活度的方法。测得￣（１９２）Ｉｒβ￣－衰变份额为０．９５７２。完全不用核参数测得之绝对活度和β￣－衰变分支比的误差分别为１；５％和１．８％（９９．７％置信水平）。
A 4πβ (PC) -γ (HPGe) compliant device was established. Absolute activity of ~ (192) Ir was determined by both parameter and efficiency extrapolations, with final uncertainties of 0.4% and 0.5% (99.7% confidence level), respectively. A method for determining the branching ratio and absolute activity of two kinds of decaying radionuclides with both β and EC using an extrapolation method of 4πβ (Pc) -γ (HPGe) coincidence is proposed. Measured ~ (192) Ir ~ ~ decay share of 0.9572. The absolute activity and beta-decay branch ratio error were 1%, 5% and 1.8% (99.7% confidence level), respectively, without using nuclear parameters.