Prepping communities: Nuclear Flashcards
What are the characteristics of dirty bombs?
Low level radiation dispersal and contamination, acute radiation with unlikely causalities, clean up and decontamination main issues
What are the three critical group event that must be ID’ed and completed from a dirty bomb?
Casualty and pt triage, medical decontamination, personal protective equipment
What is the energy partition of a standard fission/fusion bomb?
50% blast, 35% thermal, 10% fallout, 5% initial radiation
What is a fallout?
A complex mixture of over 200 different isotopes of 36 elements
2 oz fission produced for each kT yield
Describe early fallout.
Reaches the ground during the first 24 hours after detonation
50-70% of totally radioactivity
Highest degree of risk
Describe delayed fallout.
Arrives after 1st day, fine/invisible particles that settle in low concentrations, 40% of total radioactivity, much lower degree of risk than early fallout
What is ionizing radiation?
Any radiation consisting of directly to indirectly ionizing particles or photons
Which is the strongest type of ionizing radiation?
Gamma and Neutron
What are the keys to limiting expsoure?
Time, distance, shielding
What are the radiation exposure types?
Irradiation, external contamination, internal contamination
How is radiological activity detected?
Survey meters: geiger counters, detect and measure presence
Dosimeters: measure personal radiation exposure
How quickly does chemical damage occur?
Free radials in a fraction of a second
How quickly does cellular damage occur?
Proteins, membranes, DNA
Seconds to hours
How quickly does organ damage occur?
Tissue damage and loss of organ function
Hours to years
What is prodromal syndrome?
(.5 Gy, 50 rads)
Effects of rapidly dividing cells, bone marrow suppression, GI effects