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Module E (Quizlet 2)

Technical Escort - Radiological Operations

What are the four reactor accident hazards? Release of radioactive gases, release of fuel coolant and neutron activated by-products and spent fuel rods, release of Radioactive particles from fire and explosions (BLEVE)
What information is needed before entering a reactor accident? Location of individual facilities at plant, any explosions that have happened, type of and location of reactor and is the reactor shutdown?
What does BLEVE stand for? Boiling, liquid, expanding, vapor and explosion
What are the three types of explosions? Mechanical, chemical and nuclear
Mechanical explosion definition Rupture of pressurized container (BLEVE)
Chemical explosion definition Breaking of chemical bonds (MOAB)
What does MOAB stand for? Massive ordnance air blast
Nuclear explosion definition Converting mass into energy in the form of blast, heat and nuclear radiation
Fission definition Reaction in which the nucleus of an atom splits into smaller parts (nuclei of lighter elements) and produce both free neutrons and release large amounts of energy
Fusion definition Process by which two or more atomic nuclei "fuse" together to form a single heavier elemental nuclei; many times more efficient than fission
Subcritical mass definition Neutrons are lost or escape at a faster rate than they are produced
Critical mass definition Neutrons are produced at the same rate as they are lost
Super-critical mass definition Neutrons are produced fast than they are lost
What are factors affecting criticality? Amount of nuclear fuel, shape and operation of the device and density of the isotopes used
What are factors affecting criticality? Neutron escape/neutron reflective tamper and purity of the weapons nuclear material
Name factors affecting nuclear weapons effects (NWE) Type of weapon (design/delivery), isotopes used, yield of weapon and burst altitude
Name factors affecting nuclear weapons effects (NWE) The target's distance from ground zero, terrain, weather and target vulnerability
What are the three types of nuclear bursts? Airburst, surface burst and subsurface burst
Name airburst features Doughnut-shaped, white cloud, no stem or a thin broken stem, large bright fireball does not touch the surface of the earth, large initial radiation area and significant residual radiation in low airburst.
Name airburst features Delayed, or residual radiation will disappear in the atmosphere and take hours to fall to the surface if not forced down by precipitation, fallout is not military significant at or near GZ and greater EMP effects
Created by: JeromeTalley