#14 Radiation Dosimetry | Introduction to Biomedical Imaging Systems скачать в хорошем качестве

#14 Radiation Dosimetry | Introduction to Biomedical Imaging Systems

Welcome to 'Introduction to Biomedical Imaging Systems' course ! This lecture continues the exploration of attenuation, specifically focusing on the narrow beam geometry and considering both monoenergetic and polyenergetic photon sources. It derives mathematical expressions for attenuation in both cases, highlighting the exponential relationship between intensity and path length. The lecture introduces the important concept of the half-value layer (HVL), a measure of the thickness of material required to reduce the intensity of the radiation beam to half its original value. It discusses the dependence of the linear attenuation coefficient on both material properties and incident photon energy, emphasizing the need to account for these dependencies in practical applications. NPTEL Courses permit certifications that can be used for Course Credits in Indian Universities as per the UGC and AICTE notifications. To understand various certification options for this course, please visit https://nptel.ac.in/courses/102105090 #NarrowBeamAttenuation #HalfValueLayer #PolyenergeticSources