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Experimental Determinations of Directional - Correlation Solid-Angle Attenuation Factors for Ge(Li) gamma -Detectors; Comparison of Experimental and Calculated Values.

机译:Ge(Li)γ探测器定向相关固角衰减因子的实验测定;实验值和计算值的比较。

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A modification and refinement of a technique to expermentally determine the solid-angle attenuation factors for finite Ge(Li) or high-purity Ge gamma-ray detectors in angular correlation/ distribution measurements is presented. The modified method is described, a detailed exposition and assessment of its inherent uncertainties presented, and comparisons are made with versions of it proposed earlier. Experimental determinations of the attenution factors obtained by use of this modified technique are critically compared with calculated values for the same detector and experimental particulars. The overall advantages and disadvantages of the use of the technique in preference to reliance on calculated attenuation factors are considered, evaluated, and assessed. The modified technique is found to be appropriate and to allow, both in theory and practice, accurate and precise determinations of the attenuation coefficients to be made. We nevertheless conclude that available calculational techniques are highly reliable and, at the same time, to be preferred on practical grounds. (Atomindex citation 12:605639)

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