physics final presentation: nuclear physics
DESCRIPTION
It's on Nuclear Physics, but without my lecturing along with it, it might not make much sense.TRANSCRIPT
Nuclear Physics:
Nuclear Fusion, Half-Life Decay, Fundamental Forces, Alpha/Beta/Gamma Particles
Tuesday, May 28, 13
Brief Overview:
Four Fundamental Forces:
Tuesday, May 28, 13
Brief Overview:
Four Fundamental Forces:
Tuesday, May 28, 13
Brief Overview:
Four Fundamental Forces:
• Gravitation• Electromagnetism• Strong Nuclear• Weak Nuclear
Tuesday, May 28, 13
Tuesday, May 28, 13
Attraction by force proportional to masses andinversely proportional to the square of the distance
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Tuesday, May 28, 13
Electric charges attract or repel one another with a force inversely proportional to the square of the distance between them
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Tuesday, May 28, 13
~Violation of Symmetry
Decay through weak interaction
~Electroweak Theory
The first type is called the "charged current interaction" because it is mediated by particles that carry an electric charge (the W+ or W− bosons), and is responsible for the beta decay phenomenon. The second type is called the "neutral current interaction" because it is mediated by a neutral particle, the Z boson.
Tuesday, May 28, 13
Tuesday, May 28, 13
Tuesday, May 28, 13
Tuesday, May 28, 13
Nuclear Fusion
Tuesday, May 28, 13
Nuclear Fusion
Fusion of deuterium with tritium creating helium-4, freeing a neutron, and releasing 17.59 MeV of energy, as an appropriate amount of mass changing
forms to appear as the kinetic energy of the products, in agreement with kinetic E = Δmc2, where Δm is the change in rest mass of particles.
1u0 + 235U92 --> 236U*92 --> FF1 + FF2 + (2-5u)
Tuesday, May 28, 13
Half-life decay
Tuesday, May 28, 13
Half-life decay
The amount of time it takes for the substance to have
decayed halfway (or to have lost half of its’... substance).
That simple.
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Alpha Decay/Emission
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Alpha Decay/Emission
Tuesday, May 28, 13
Beta Decay/Emission
Tuesday, May 28, 13
Beta Decay/Emission
Electron or positron (anti-electron) emission... to obtain the optimal ratio or protons to neutrons.
Electron emission is Beta Minus (β−) and positron emission is Beta Plus (β+).
anti-neutrino
electron neutrino
Tuesday, May 28, 13
Gamma Decay/Emission
Tuesday, May 28, 13
Gamma Decay/Emission“The mechanism is that when a nucleus emits an α or β particle, the daughter nucleus is usually left in an excited state. It can then move to a lower energy state by emitting a gamma ray, in much the same way that an atomic electron can jump to a lower energy state by emitting a photon. Emission of a gamma ray from an excited nuclear state typically requires only 10−12 seconds, and is thus nearly instantaneous. Gamma decay from excited states may also follow nuclear reactions such as neutron capture, nuclear fission, or nuclear fusion.”
Tuesday, May 28, 13
"Alpha Emission." Wikipedia. Wikimedia Foundation, 25 Mar. 2013. Web. 28 May 2013. <http://en.wikipedia.org/wiki/Alpha_emission>."Beta Emission." Wikipedia. N.p., n.d. Web. 27 May 2013. <http://en.wikipedia.org/wiki/Beta_emission>."Electromagnetism." Wikipedia. N.p., n.d. Web. 27 May 2013. <https://en.wikipedia.org/wiki/Electromagnetism>."Fundamental Interaction." Wikipedia. N.p., n.d. Web. 27 May 2013. <https://en.wikipedia.org/wiki/Fundamental_interaction>."Gamma Emission." Wikipedia. Wikimedia Foundation, 23 May 2013. Web. 28 May 2013. <http://en.wikipedia.org/wiki/Gamma_emission>."Gravitation." Wikipedia. N.p., n.d. Web. 27 May 2013. <https://en.wikipedia.org/wiki/Gravitation>."Half-life." Wikipedia. Wikimedia Foundation, 25 May 2013. Web. 28 May 2013. <http://en.wikipedia.org/wiki/Half-life>.Image A. Digital image. Image A. N.p., n.d. Web. 27 May 2013. <https://upload.wikimedia.org/wikipedia/commons/7/7d/NuclearReaction.png>.Image B. Digital image. Image B. N.p., n.d. Web. 27 May 2013. <https://upload.wikimedia.org/wikipedia/commons/3/3b/Deuterium-tritium_fusion.svg>.Image C. Digital image. Image C. N.p., n.d. Web. 27 May 2013. <http://i.huffpost.com/gen/935625/thumbs/o-GRAVITYPROBEB-facebook.jpg>.Image D. Digital image. Image D. N.p., n.d. Web. 27 May 2013. <http://0.tqn.com/d/chemistry/1/0/V/W/magnet.jpg>.Image E. Digital image. Image E. N.p., n.d. Web. 27 May 2013. <http://www.psc.edu/science/Glatzmaier/field_big.gif>.Image F. Digital image. Image F. N.p., n.d. Web. 27 May 2013. <http://media-s3.viva-images.com/vivastreet_ve/clad/b3/f/38463550/large/1.jpg?dt=88c665742d0255c2803d9dba1b1e1ac2>.Image G. Digital image. Image G. N.p., n.d. Web. 27 May 2013. <http://someinterestingfacts.net/wp-content/uploads/2013/01/Nuclear-Fission-vs-Fusion.jpg>.Image H. Digital image. Image H. N.p., n.d. Web. 27 May 2013. <https://upload.wikimedia.org/wikipedia/commons/3/35/Nuclear_Force_anim_smaller.gif>.Image I. Digital image. Image I. N.p., n.d. Web. 27 May 2013. <http://upload.wikimedia.org/wikipedia/commons/9/96/Weak_decay_diagram.svg>.Image J. Digital image. Image J. N.p., n.d. Web. 27 May 2013. <http://images.tutorvista.com/cms/images/83/strong-nuclear-force.PNG>.Image K. Digital image. Image K. N.p., n.d. Web. 27 May 2013. <http://upload.wikimedia.org/wikipedia/commons/7/79/Alpha_Decay.svg>.Image L. Digital image. Image L. N.p., n.d. Web. 27 May 2013. <http://en.wikipedia.org/wiki/File:Cobalt-60_Decay_Scheme.svg>."Nuclear Fusion." Wikipedia. N.p., n.d. Web. 27 May 2013. <https://en.wikipedia.org/wiki/Nuclear_fusion>."Strong Interaction." Wikipedia. Wikimedia Foundation, 20 May 2013. Web. 28 May 2013. <http://en.wikipedia.org/wiki/Strong_interaction>."Weak Interaction." Wikipedia. Wikimedia Foundation, 20 May 2013. Web. 28 May 2013. <http://en.wikipedia.org/wiki/Weak_interaction>.
Works Cited
Tuesday, May 28, 13