【摘要】 用39 MeV-α粒子轰击天然钨靶产生了¹⁸³Os测量了¹⁸³Os衰变的γ-β符合谱,确定了β⁺能谱的端点能量。最终提取出¹⁸³Os衰变的Q_EC值:Q_EC=2.24±0.10 MeV,与系统学的估计值:2.304±0.10MeV在误差范围内相符。更多还原

【Abstract】 Activities of ¹⁸³Os were produced by 39 MeV a particles bombarding on a natural tungsten target. β⁺ spectrum with coincidence gate set on the strongest 382 keV γ-rays of ¹⁸³Os decay was measured. The endpoint energy of the β⁺ spectrum was determined and the Q_EC value of¹⁸³Os decay was extracted to be 2.24±0.10 MeV which is in good agreement with the predicted value 2.30±0.10 MeV on the basis of mass systematics.更多还原