具有磁分裂样品的无反冲分数f_a的测定

具有磁分裂样品的无反冲分数f a 的测定 DETERMINATION OF THE RECOILLESS FRACTION OF MAGNETIC SPLITTING MATERIAL 易凡 Yi Fan 1 2 first-author 张富良 Zhang Fuliang 1 2 陈义龙 Chen Yilong 1 2 武汉大学物理学系,武汉 武汉大学物理学系,武汉 Department of Physics, Wuhan University Department of Physics, Wuhan University ,430072 ,430072 研究了由样品厚度而引起的饱合效应对穆斯堡尔谱产生的影响，对于碰分裂样品，应取其透射谱中3、4峰的强度来计算信噪比为宜．据此测量得到a-Fe2O3的无反冲分数fa在室温下为0．65.关键词：##4穆斯堡尔谱;无反冲分数;信噪比 Here studied the influence of saturation effect on Mossbauer spectrum. It is reasonable tousing inboard line intensity of transmitting spectrum for magnetic splitting material as parameter in recoilless fraction measurement. The recoilless fraction of a--F.,O, is determined. 穆斯堡尔谱 无反冲分数 信噪比 Mossbauer spectrum recoilless fraction signal-to-ratio O482 国家自然科学基金(61672102) 1998-05-01 2021-04-01 5