'Beta radiation' diaporamas de présentation

Nuclear Chemistry & Organic Chemistry

Nuclear Chemistry & Organic Chemistry. Nuclear chemistry. Nucleus of an atom contains protons and neutrons Strong forces (nuclear force) hold nucleus together Protons in nucleus have electrostatic repulsion however, strong force overcomes this repulsion

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University of Notre Dame

University of Notre Dame. Department of Risk Management and Safety 2013 Radiation Safety Refresher Training. INTRODUCTION. Lessons 1-5 will provide a review of some general knowledge of radiation with which all radioactive material and radiation producing machines should be familiar.

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Physical, technological and organizational bases of radiation medicine.

Physical, technological and organizational bases of radiation medicine. Prof. Igor Y. Galaychuk, MD Head, Department of Oncology & Radiology Ternopil State Medical University. Physics of Radiation. Proton - positive charge, in the nucleus. Neutron - neutral (no) charge, in the nucleus.

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Fission

Fission. Splitting a nucleus into smaller fragments Happens with atoms larger than Iron (Fe) Usually far more massive Can release A LOT of energy Think: atomic bomb Nuclear reactors use fission as source of energy. http://www.atomicarchive.com/Fission/Fission1.shtml.

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Chapter 3 Notes

Chapter 3 Notes. Atoms- Smallest particle of an element that retains the chemical identity of that element. Principles of chemical behavior: Lavoisier: Law of Conservation of Matter Proust: Law of Constant Composition

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Radioactivity

Radioactivity. RADIATION *Penetrating rays emitted by a radioactive source *Ranges from Cosmic and Gamma Rays to Radio Waves. RADIOACTIVE DECAY *Unstable atoms have excess internal energy. *the nucleus can undergo a spontaneous change towards a more stable form. 3 types of RADIATION

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Nuclear Science Merit Badge Workshop

Nuclear Science Merit Badge Workshop. For the Boy Scouts of America by The Pennsylvania State University, American Nuclear Society Student Section Spring 2005. Welcome. The Radiation Science and Engineering Center at Penn State. Graphic by Vaughn Whisker. & Breazeale Nuclear Reactor.

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THE EXTERNAL HAZARD

THE EXTERNAL HAZARD. Radiation Protection . The external radiation hazard arises from sources of radiation outside the body. When radioactive material actually gets inside the body it gives rise to an internal radiation hazard. .

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RADIATION !!!

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Introduction to Radiation

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Practice Quiz: Nuclear Chemistry

Practice Quiz: Nuclear Chemistry. cigarette smoke televisions batteries cosmic rays bricks people . 1. Which is NOT a source of background radiation?. Each of these other items contribute to small, but measureable, amounts of background radiation.

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Go over Tests Notes on Nuclear Nuclear Video HW: Final Review due Monday

Agenda. AQOD. Go over Tests Notes on Nuclear Nuclear Video HW: Final Review due Monday. What is a nuclear reaction?. Nuclear Chemistry. What particles are involved in a Chemical Reaction ?. Valence Electrons. What particles are involved in a nuclear reaction?.

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Nuclear Chemistry

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Unstable Nuclei and Radioactive Decay

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Chapter 10: Radioactivity and Nuclear Processes

Chapter 10: Radioactivity and Nuclear Processes. RADIOACTIVE NUCLEI Radioactive nuclei are nuclei that undergo spontaneous changes and emit energy in the form of radiation. The emission of radiation by radioactive nuclei is often called radioactive decay.

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Movie from vimeo Insert on this slide after I make the movi

Movie from vimeo Insert on this slide after I make the movi. Weapons Used to Kill US. Alpha Bullets Beta Electrons Gamma Ray Guns. Alpha Radiation Helium Atom. Large and Slow InternAl Hazard Radon Gas Very Bad. Beta Radiation Electrons.

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Nuclear Energy

Nuclear Energy. Nuclear Reactions - when unstable isotopes gain stability by making changes in the nucleus. These changes are followed by large amounts of radiation energy. Radioisotopes -isotopes that have unstable nuclei. *Stability depends on ratio of neutrons to protons.

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Radioactivity

Radioactivity. What is the most ionising form of radiation? What is the least penetrating form of radiation? What is beta radiation made of? What happens to a neutron during beta decay?. Alpha. Alpha. An electron. It turns into a proton and an electron.

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Nuclear fission is the process of splitting atoms.

Nuclear fission is the process of splitting atoms. This happens by neutrons hitting atoms and producing fission products which are unstable and so release more neutrons.

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