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What does the atomic number represent?
the number of protons in the nucleus
Which charge do protons maintain?
Postive
What charge do Neutrons maintain?
Neutral/No Charge
What charge do Electrons maintain?
Negative
When does ionization occur
ionization occurs when atoms gain or lose electrons
What is atomic mass?
the mass of a single atom, determined by adding up the protons and neutrons
What is atomic weight?
the average mass across all isotopes
Protium is how many protons and how many neutrons?
1 proton, 0 neutrons
What is an isotope?
An element with the same number of protons, but different number of neutrons
Deuterium is how many protons and how many neutrons?
1 proton, 1 neutron
Tritium is how many protons and how many neutrons?
1 proton, 2 neutrons
What is a half-life?
the amount of time it takes for half of the unstable material to decay
What are the four types of radiation?
Alpha particles, Beta particles, Neutrons, or Electromagnetic waves
Alpha particles contain how many protons and how many neutrons?
2 protons, 2 neutrons
Neutrons are?
Irradiative
What are the four fundamental forces in order from weakest to strongest?
Gravity, Weak, Electromagnetism, Strong
The Weak force is responsible for what?
Radioactive Decay
What is Electromagnetism force?
The interaction between charged particles
The strong force is...?
The glue that holds the pieces of the atom together
What is Nuclear Fission?
the breaking down of an atom into smaller, lighter nuclei
Radioactive decay can be seen as...?
a natural form of nuclear fission, where unstable isotopes breakdown into stable isotopes
What is Nuclear Fusion?
the process of combining two nulcei to form a singular, heavier nuclear, resulting in the release of kinetic energy and radiation
What are the 3 naturally occurring isotopes of Uranium?
Uranium-238 ~99.3% (not fissile), Uranium-235 ~0.7% (fissile), Uranium-234 ~
What are the 5 main isotopes of Plutonium?
Plutonium-238, Plutonium-239, Plutonium-240, Plutonium-241, Plutonium-242
What is the half-life of Pu-238 and is it fissile or fertile?
Half-life 88 years, fertile
What is the half-life for Pu-239 and is it fissile or fertile?
Half-life 24,000 years, fissile
What is the half-life of Pu-240 and is it fissile or fertile?
Half-life 6,560 years, fertile
What is the half-life of Pu-241 and is it fissile or fertile?
Half-life 14.4 years, fissile
What is the half-life of Pu-242 and is it fissile or fertile?
Half-life 374,000 years, technically fissile but not very good
What does Pu-238 alpha decay to?
U-234
What does Pu-239 alpha decay to?
U-235
What does Pu-240 alpha decay to?
U-236
What does Pu-241 beta decay to?
Am-241
What does Pu-242 alpha decay to?
U-238
What are the 6 steps to the Nuclear Fuel Cycle?
Uranium Recovery
Conversion
Enrichment
Deconverted
Fabricated
Disposale
What is Uranium Recovery?
Uranium is mined, and Milled to concentrate uranium oxide U3O8
What is the Conversion process?
Converted into Uranium Hexafluoride UF6, during the conversion UF6 is gaseous, cools to liquid, and then solid after a few days, the solid is then shipped to an enrichment plant
What is the Enrichment process?
Heated up into gas, then UF6 undergoes enrichment to filer between U-235 & U-238, We need more U-235 accessible
What are the 3 methods of enrichment
gaseous diffusion, gaseous centrifuge, laser seperation
What is Gaseous Diffusion?
Keeps U-238 trapped and lets U-235 up
What is Gaseous Centriguge?
Centrifugal Force separates the atoms
What is the Deconversion stage?
It makes depleted fuel less toxic to store, extracts the fluoride from the UF6
What is the Fabrication stage?
Concentrated into mixed oxide fuel, reactor controlled by moderators like cadmium-coated rods
What are Generation 1 reactors?
Pressurized water reactors, 50s-60s, almost all decommissioned
What are Generation 2 reactors?
Backup water pumps, more efficient, 60s-90s
What are Generation 3 reactors?
longer life span, more safety features
What are Generation 4 reactors?
Advanced, small modular reactors
What is Fission Energy Powered by?
Enriched Uranium
What is Fusion Energy Powered by?
Fusion Energy does not yet exist
What is Needed to make a Nuclear Weapon?
Delivery System, Fuel, Weapon Design, Personnel, Test Site
What are the 3 types of Fission Weapons?
Gun-type
Implosion-type
Boosted Nuclear Weapon
What is a Gun-type Fission Weapon?
Shoots one piece of sub-critical material into another, High amounts of Uranium required, Very low efficiency, Example: 'Little Boy' (Hiroshima)
What is an Implosion-type Fission Weapon?
Explosive lenses, Compresses a radioactive core, Beryllium/Plutonium Core, Example: 'Fat Man' (Nagasaki)
What is a Boosted Nuclear Weapon?
Small amounts of fusion needed, Neutrons induce a fission reaction, more efficient
What are Modern Nukes?
A type of Fusion Weapon, pushes two atoms together to create a new elements, triggered with fission
How does a nuclear reactor work?
Water boiled, converted to steam, causes turbines to spin, generates electricity through the conversion of kinetic energy
Types of Tactical Nuclear Weapons
Short Range Missiles, Artillery Shells, Depth Charges, Torpedoes
What are the most powerful nuclear weapons with the highest yield?
Those that are focused on deterrence through MAD
What does the Nuclear Triad consist of?
ICBMs (intercontinental ballistic missiles), SLBMs (Submarine launched ballistic missiles), Strategic Bombers
What are the four spots where Nuclear Weapons have been tested?
Land, atmosphere, underground, space
What might low exposures of radiation cause?
Might damage chromosomes, cause nausea, fatigue, raises risk of leukemia or lymphoma
What might mid exposure of radiation cause?
might cause hair loss, thyroid issues, cancer, temporary male sterility
What might higher levels of radiation exposure cause?
can destroy cells in the blood, reproductive organs or hair, can damage bone marrow, intestines, can cause oral hemorrhaging
What might major levels of radiation exposure cause?
heart failure, eradication of bone marrow, permanent female sterility, nerve cells and small blood vessels are annihilated, resulting in death in days
09/29/1957, The Mayak nuclear fuel processing plant experienced disaster when the cooling system failed, Dried Radioactive material overheated, and exploded coating the town of Ozyorsk in radioactive particles, took a week before 10,000 residents were evacuated - Which Nuclear Disaster?
Kyshtym, Russia
10/10/1957, Plutonium producing reactor, uranium-filled graphite core had caught on fire, workers prevented a full meltdown, event is believe to be connected with causing ~240 cases of cancer - Which Nuclear Disaster?
Windscale, UK
03/28/1979, Due to a mix of mechanical and human errors, radioactive cooling water spread throughout the facility, core nearly went into a meltdown, radioactive steam coated nearby cities in Pennsylvania - What Nuclear Disaster?
Three Mile Island, US
07/16/1979, Thousands of tons of radioactive waste spilled from an underground uranium mine spilled into land and water of the Navajo Nation - What Nuclear Disaster?
Church Rock, US
04/26/1986, a power surge blew a 1,000 ton steel top off of the reactor, a massive cloud of radioactive material coated Pripyat, dozens died attempting to stop the crisis - What Nuclear Disaster?
Chernobyl, Ukraine
03/11/2011, The largest undersea earthquake caused a tsunami the struck this plant, 3 reactors shutdown successfully, but backup power and cooling systems failed, causing partial meltdowns - What Nuclear Disaster?
Fukushima, Japan
The Manhattan Project has operation centers located where, and what purpose did they serve?
Oak Ridge, Tennessee - to enrich uranium and serve as headquarters
Hanford, Washington - to produce plutonium
Los Alamos, New Mexico - to build and test the bombs
International attention turns from fascism to communism, as what war begins?
The Cold War
What is an Arms Race?
A competition between two or more states involving military innovation or security elements
3 Examples of Arms Races?
Britain and Germany's naval arms race (Anglo-German Naval Arms Race), US v USSR cold war arms race, USA and China AI arms race
What is the Spiral Model?
A state believes another state is seeking to overtake them so State A builds up in return, starting the spiral
What is the Deterrence Model?
State A believes that State B is seeking to equalize and does not build up, and State B takes advantage of that
What do realists believe to be causes of war?
Classical realists might explain war via Human Nature
What do neorealists believe to be causes of war?
Structural anarchy, security dilemmas, transitions in power, competition
What do Liberal theorists believe to be causes of war?
lack of institutional engagement
What do Feminist theorists believe to be causes of war?
structural, both interstate and interpersonal, inequalities
What do Constructivists believe to be causes of war?
competing identities/idea, the belief that wars can lead to change
What do rationalists believe to be causes of war?
they see it as a failure to compromise
3 reasons why the Bargaining Model fails?
The problem of asymmetric information, the problem of credible commitments, the problem of indivisible issues
What is the problem of asymmetric information?
Liars, misrepresentations, misinterpretations
What is the problem of credible commitments?
Lack of trust, lack of an ability to make future commitments
What is the problem of indivisible issues?
Fighting over something that cannot/will not be divided or shared
What is Brute Force?
complete destruction, conquest, enslavement and death
what is Coercive Force?
Limited destruction, targeted violence focusing on specific targets, deterrence and compellence
How many Nuclear Weapon States are there?
5 legitimate, 4 illegitimate
What is Institutional nonproliferation?
bilateral and multilateral agreements in international legal settings
What is Coercive nonproliferation?
acts utilizing military or covert means to subdue efforts of nuclear proliferation
the organization charged with monitoring compliance with the NPT
International Atomic Energy Agency (IAEA)
the atomic number of an element represents this amount of subatomic particles within the nucleus
Protons
What is the Nuclear Nonproliferation Treaty (NPT)?
An international agreement that seeks to prevent horizontal proliferation.
What does the Nuclear Nonproliferation Treaty (NPT) prohibit?
Further nuclear weapons sales, acquisitions, or production.
what are the 3 pillars of nonproliferation?
nonproliferation, peaceful use, disarmament
A bilateral agreement between the US and USSR to limit anti-ballistic missile systems
Anti-Ballistic Missile Treaty
A bilateral agreement between the US and USSR to limit nuclear tests to devices below 150kt yield
Threshold Test Ban Treaty
The Supply Model
Nuclear proliferation is explained by the available supply of necessary materials
Demand: Security Model
States will proliferate if they are under significant threat