在182Hf的AMS测量中182W的压低因子是一个很重要的指标。它被定义为空白样品中的182W/180Hf的值除以AMS测量得到的182W/180Hf的值。为满足一定的测量灵敏度的要求,被测样品中钨含量的上限应该用182W的压低因子预先估计出来。这对于被测样品的化学制备方案的确定是很重要的。研究表明,通过选取适当的靶物质化学形态和离子源的引出离子形式,182W可以被极 The 182 W reduction factor in the 182 Hf AMS measurement is a very important indicator. It is defined as the value of 182 W / 180 Hf in a blank sample divided by the AMS measurement of 182 W / 180 Hf. In order to meet the requirement of certain measurement sensitivity, the upper limit of the tungsten content in the sample to be measured should be estimated in advance with the depression factor of 182W. This is important for the determination of the chemical preparation of the test sample. Studies have shown that by selecting the appropriate chemical form of the target material and the ion source ion source form, 182W can be pole