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Physics and Chemistry of Radiation Absorption-Radiation Biology-Lecture Slides

Slides, Radiation Biology

Post: July 3rd, 2012
Description
Dr. Varun Kumar delivered this lecture at University of Lucknow for discussing following topics related to Radiation Biology: Types, Radiations, Classification, Illustration, Absorption, Compton, Mechananisms, Direct, Radiolysis, Effects
Dr. Varun Kumar delivered this lecture at University of Lucknow for discussing following topics related to Radiation Biology: Types, Radiations, Classification, Illustration, Absorption, Compton, Mechananisms, Direct, Radiolysis, Effects
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Physics & Chemistry of Radiation Absorption Lecture-2 Docsity.com Types of Radiations Non-ionizing Ionizing Ionizing radiation (can ionize matter either directly or indirectly): —Directly ionizing radiation (charged particles): electrons, protons —Indirectly ionizing radiation (neutral particles): photons (X rays and gama rays), neutrons. Docsity.com Classification of radiation Docsity.com Illustration of the electromagnetic spectrum X-rays and y-rays have the same nature as visible light, radiant heat, and radio waves, however, they have shorter wavelengths and consequently a larger photon energy. As a result, x and yrays can break chemical bonds and produce biologic effects. Docsity.com Absorption of an x-ray photon by the Compton process The photon interacts with a loosely bound planetary electron of an atom of the absorbing material. Part of the photon energy is given to the electron as kinetic energy. The photon deflected from its original direction, proceeds with r..

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