INTRO TO RAD AGENTS USC 2010

INTRO TO RAD AGENTS USC 2010 - 1 COPYRIGHTED BY SALVATORE...

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Unformatted text preview: 1 COPYRIGHTED BY SALVATORE R. DINARDI, Ph.D, CIH S. R. DiNardi Radiological Threats and Explosive Devices Salvatore R. DiNardi, Ph.D, CIH Professor Emeritus University of Massachusetts/Amherst and Principal Scientist Submarine Atmosphere Health Assessment Program Submarine Medical Research Laboratory SUBASE NLON Groton Connecticut 3 COPYRIGHTED BY SALVATORE R. DINARDI, Ph.D, CIH S. R. DiNardi OUTCOME COMPETENCIES Upon completion of this class, the student will be able to: Identify types of radiological agents Discuss exposure pathways for radiological agents Define potential radiological agents Alpha, beta and gamma radiation List radiological agents that are potential weapons Medical diagnostic sources Laboratory sources Nuclear fuel rod sources Describe factors that increase the risk of exposure in various settings 4 COPYRIGHTED BY SALVATORE R. DINARDI, Ph.D, CIH S. R. DiNardi Radiological Threats A Brief Introduction 5 COPYRIGHTED BY SALVATORE R. DINARDI, Ph.D, CIH S. R. DiNardi The Electromagnetic Spectrum 1 Longer wavelength Increasing energy 6 COPYRIGHTED BY SALVATORE R. DINARDI, Ph.D, CIH S. R. DiNardi Non-Ionizing Radiation Can cause burns but does not cause molecular changes or ionization Sunlight (ultra violet) Fluorescent light Lasers Microwaves 8 COPYRIGHTED BY SALVATORE R. DINARDI, Ph.D, CIH S. R. DiNardi What Is Ionizing Radiation Emission of energy from the disintegration of the nucleus of an atom When radiation passes through material it can cause changes in the cells 9 COPYRIGHTED BY SALVATORE R. DINARDI, Ph.D, CIH S. R. DiNardi The Atom Electrons Nucleus with protons and neutrons 10 COPYRIGHTED BY SALVATORE R. DINARDI, Ph.D, CIH S. R. DiNardi What is Radiation? Radiation is energy transported in the form of particles or waves. 11 COPYRIGHTED BY SALVATORE R. DINARDI, Ph.D, CIH S. R. DiNardi Ionizing Radiation z Radiation that can produce charged particles in materials it strikes Photon Photoelectron 12 COPYRIGHTED BY SALVATORE R. DINARDI, Ph.D, CIH S. R. DiNardi Alpha Particle Emission Parent Nucleus Alpha Particle 2 ++ 4 13 COPYRIGHTED BY SALVATORE R. DINARDI, Ph.D, CIH S. R. DiNardi The Beta Particle Beta Particle Parent Nucleus-1 - Gamma Photon 14 COPYRIGHTED BY SALVATORE R. DINARDI, Ph.D, CIH S. R. DiNardi Neutron Emission Fission of Parent Nucleus Fission Fragment 1 Neutrons Fission Fragment 2 Enormous Release of Energy 15 COPYRIGHTED BY SALVATORE R. DINARDI, Ph.D, CIH S. R. DiNardi Gamma Ray Radiation Parent Nucleus Daughter Nucleus Beta Particle Gamma Rays-1 - 16 COPYRIGHTED BY SALVATORE R. DINARDI, Ph.D, CIH S. R. DiNardi X-Ray Production (Bremsstrahlung) Electron Target Nucleus X-Ray Rotating anode target Cathode (electron source) X-ray beam 17 COPYRIGHTED BY SALVATORE R. DINARDI, Ph.D, CIH S. R. DiNardi Types of Ionizing Radiation Particles Alpha ( ++ ) - same as a helium nuclei...
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This note was uploaded on 02/16/2011 for the course NURS 504 taught by Professor Culley during the Spring '11 term at South Carolina.

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INTRO TO RAD AGENTS USC 2010 - 1 COPYRIGHTED BY SALVATORE...

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