Figure 1From: Elemental analysis of lung tissue particles and intracellular iron content of alveolar macrophages in pulmonary alveolar proteinosisIn-air micro-PIXE system. The proton ionmicrobeam from the accelerator is focused through microslit, and the beam is irradiated to the tissue sample in vacum state. The characteristic X-rays, those are specific energy for each element produced by irradiation, are identified by the X-ray detectors.Back to article page