Keywords: NarrowBeamGeometry.jpg en Attenuation of a primary X-ray beam containing N<sub>0</sub> photons by an attenuator of thickness Δx own Kieranmaher 2001-01-01 Reproduced with permission from Heggie JCP Liddell NA Maher KP 2001 Applied Imaging Technology 4th Edition Physics_diagrams X-rays |