Scattered ions from the au foil passing through the q3d magnetic spectrometer , recoiled au ions were deflected , pure ions with single energy and single linear energy transfer were obtained 经过q3d磁谱仪的磁偏转,去掉反冲au离子和其它杂散粒子,得到具有单一线传能密度( let )值的离子。
Linear energy transfer (LET) is the linear density of energy lost by a charged ionizing particle travelling through matter. Since the energy loss is part of the definition, LET is a positive quantity.