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Rutherford’s Transmutation of Nitrogen Ernest RutherfordDisintegration Chamber
Nuclear Binding Energies
Enrico Fermi Chicago Pile 1 Stagg Field, University of Chicago Uranium Pellets Graphite Bricks Cadmium Coated Rods
Uranium Enrichment 0.7% 235 U Uranium Hexafluoride Gas Storage Cylinder Oakridge, TN Gaseous Diffusion 238 UF 6 vs. 235 UF 6
Little-Boy Uranium Bomb Dropped on Hiroshima 13 – 18 kiloTons of TNT
Fat Man Plutonium Bomb Dropped on Nagasaki 21 kiloTons
Fusion - Naturally Occurring 1 1 H + 1 1 H 2 1 H + 0 1 e 1 1 H + 2 1 H 3 2 He 3 2 He + 3 2 He 4 2 He + 2 1 1 H 3 2 He + 1 1 H 4 2 He + 0 1 e
Fusion Bomb Mike Liquid Deuterium Bomb Enewetak Atoll 10 – 12 MegaTons
Teller – Ulam Design
Nuclear Fission ~bombs and nuclear power. Nuclear fission ~the separating of a nucleus of an atom. This is the process used by nuclear power stations.
Gamma rays, Fission ~bombs and nuclear power. Gamma radiation In gamma radiation no particle is released, just a “packet” of energy. Photon- “packet”
Fission and Fusion of Atomic Nuclei. I. Nuclear Fission Fission - The splitting of the nucleus into fragments (division) Uranium-235 is struck by a neutron.
Reactors and Bombs Short Version. Reactor Components Moderator – Small A – Small probability of absorbing neutrons; Water Heavy water (deuterium) Graphite.
E = m c 2 (a little bit of mass can create a lot of energy)
Splitting a large nucleus into two smaller nuclei Usually begins by bombarding (shooting at) nucleus with a neutron become unstable Nucleus split.
Nuclear Power Nuclear Physics Definition of isotope –Atomic mass –Atomic number Behaviors of isotopes Half life.
Nuclear Physics …or ≠ 4. Nuclear Basics Mass Number = number of nucleons (p + + n 0 ) Atomic Number = number of protons Q: If like charges repel,
W. Udo Schröder, 2004 Nuclear Weapons 1. W. Udo Schröder, 2004 Nuclear Weapons 2 Acknowledgements/Disclaimer All information in this presentation is in.
Nuclear Reactions Chemistry Mrs. Coyle. Part I Fission and Fusion.
Splitting The Atom Nuclear Fission. Fission Large mass nuclei split into two or more smaller mass nuclei –Preferably mass numbers closer to 56 Neutrons.
What is Light?. v speed of wave f frequency (number of cycles per second) A amplitude Light is like a slinky wavelength (Greek letter lambda) c = 3 x.
Nuclear Energy About 20% of our electricity comes from Nuclear Power Plants.
DESIGING A NUCLEAR WEAPON. WHEN MOST PEOPLE THINK NUCLEAR ENERGY, THEY THINK BOMB. THEY THINK, “OH, MY GOSH, TERRORIST ARE GOING TO STEAL THE FUEL AND.
FISSION TECHNOLOGIES. FISSION!!! MOVIE CLIP Nuclear Chain Reactions Play Movie.
Tommy Gaffney James Haber Aaron Nunez. Background European scientists came to America They asked Roosevelt for money to fund nuclear research Told.
Splitting The Atom Nuclear Fission. The Fission Process unstable nucleus mass closer to 56.
THE MANHATTAN PROJECT Possible Routes to Fissionable Materials Considered by U. S. in 1942 Natural Uranium (99.3% U-238, 0.7% U-235) Gaseous.
Radiochemistry - The Integration of Physics and Chemistry - the Beginnings KlaprothUranium discovered PeligotUranium isolated RoentgenX.
The Manhattan Project. How it Began Started by FDR in 1939 in response to Germany’s nuclear arms production (Einstein’s letter). Started by FDR in 1939.
Nuclear Physics Selected Topics 5 –Fission and Fusion.
Ch. 5 Chain reactions The power of repeated doubling Neutrons initiate fission, and fission creates more neutrons Runaway chain reaction is a bomb Critical.
1.Natural uranium contains about 0.7% uranium To make nuclear fuel from natural uranium, it has to be enriched. 3.Uranium-235 is added to.
Nuclear Fuel Production Fissile Nuclei Uranium and Plutonium 235 U 239 Pu.
Nuclear Energy. Nuclear Fission We convert mass into energy by breaking large atoms (usually Uranium) into smaller atoms. Note the increases in binding.
By: David Sundine II & Emilio Zavala. Is anything that has mass and takes up space. Its unit is a Atoms It can be changed.
Energy. Kinetic Energy – Energy of Motion Potential Energy – Energy of Position (stored energy Forms of Energy.
Transmutation (Objective 25.6: Identify two ways transmutation can occur) Transmutation is the conversion of an atom of one element to the atom of another.
Nuclear Fission and Fusion An energetic discussion.
The Atomic Bomb Hugo Caraballo Meredith Duval Adam Harvey Matt Ruby.
Alternative Energy Sources Nuclear Energy. Nuclear Fission The source of nuclear energy. 1. Artificial Transmutation 2. Decay The neutron is the key!
Nuclear Fission. unstable nucleus mass closer to 56.
Jason Van Tine Period 3. There is fission or fusion The weapons got a lot smaller.
Isotopes Rev Pisgah High School M. Jones.
Chicago’s Role in Ending the War Chicago History.
Nuclear Fission The basis for old bombs and new energy.
History of the Atomic Bomb By Kieran Cockburn 3R.
Fundamentals of Nuclear Power. Nuclear Fission We convert mass into energy by breaking large atoms (usually Uranium) into smaller atoms. Note the increases.
Fission and Fusion Plus reactors and Bombs. Conservation of Energy Something (left) → Something else (right) If Σ masses on left > Σ masses on right –
Change the nucleus-change the atom Nuclear changes involve the nucleus (protons and neutrons). Chemical changes involve the electrons (ionic, covalent.
The Nuclear Fuel Cycle Mary Lou Dunzik-Gougar, PhD ANS Teachers’ Workshop 2014.
Nuclear Reactions Lesson 7. Objectives Compare and contrast the characteristics of fission and fusion reactions Relate the energy released, both qualitatively.
Physics 12 Mr. Jean January 18 th, The plan: Video clip of the day Chapter 18 & 19 – MC.
Fundamentals of Nuclear Power. The Nucleus Protons – × 10 27 kg Neutrons – × 10 27 kg.
Hahn and Strassmann’s discovery Fermi discovers that neutrons are the way to go, and discovers many nuclear reactions In 1938, Otto Hahn and Fritz Strassmann.
IB Physics 12 Nuclear Physics 6 Mr. Jean. The plan: Video clip of the day –Example of fission energies –Example of fusion energies –Recap of nuclear physics.
Where did the energy for this come from? The nucleus.
Nuclear Weapons Number of operational warheads in the U.S. nuclear stockpile, according to the Pentagon. The figure is down from a peak of 31,225.
Nuclear Chemistry. Nuclear reactions involve unstable nuclei becoming more stable by emitting energy Nuclear reactions involve unstable nuclei becoming.
SPH3U Group: Rishi Sharma Pashv Shah Roy Wang Eric Li.
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