Andrew+Murphy+Powerpoint

//**Heres my powerpoint**//

Andrew Murphy PowerPoint

Slide 1. Cover Slide


 * //Radiation Powerpoint Presentation//**

//Slide 1- Cover Slide 2- Outline Slide 3-Alpha Emission Slide 4-Beta Emission Slide 5-Positron Emission Slide 6-Electron Capture Slide 7-Gamma Emission Slide 8-Conclusions Slide 9-Bibliography//
 * Outline:**

Slide 3-Alpha Emission 23892U -&gt; 23490Th + 42He A Radioactive nucleus that undergoes alpha emission emits a helium nucleus, 42He. The remaining nucleus has two fewer protons and two fewer neutrons, the atomic number declines by two and the mass number by four.

Slide 4 31H -&gt; 32He + e-

Beta emission is when a radioactive nucleus has a neutron in its nucleus convert into a proton and an electron, then it ejects the electron. The remaining nucleus has one more protons and one fewer neutron, the atomic number increases by one and the mass number stays the same.

Slide 5

Positron emission is when a proton is converted, to a neutron, a positron (also known as the "beta plus particle", the antimatter counterpart of an electron), and a neutrino.

Slide 6

The nucleus of an atom captures an electron of the atomic shell, then a proton in the nucleus converts into a neutron.

Slide 7
 * [[image:http://upload.wikimedia.org/math/4/a/9/4a9f4e793925016dab4579c05765fbb7.png caption="I(d) = I_0 cdot e ^{-mu d}"]] ||
 * I(d) = I_0 cdot e ^{-mu d} ||



State of an atom or a nucleus with a higher energy than that of its normal energetic state. The excessive energy is generally emitted as photons.

Slide 8 This project helped me better understand many things like Beta emission, Positron emission, Gamma emission, electron capture and alpha emission. For example i no now that electron capture is when the nucleus of an atom captures a alectron of a atomic shell, then the proton converts to a neutron.
 * Conclusions**

Slide 9 Bibliography [|__http://www.fda.gov/cdrh/annual/fy2000/ohip/radiation.gif__] [|__http://cache.eb.com/eb/image?id=62904&amp;rendTypeId=4__] [|__http://www.vtaide.com/png/images/atom.jpg__] [|__www.wikepedia.com__] [|__http://physics.unco.edu/sung/sci103/nuclear/tritium_decay.gif__] http://depts.washington.edu/nucmed/IRL/pet_intro/intro_src/fig1_small.JPG