Nuclear Materials And Hazards. Flashcards
Name the four types of ionizing radiation.
Alpha. Beta. Gamma. Neutron.
What type of radiation causes whole body exposure?
Gamma.
Fuel rods are what percentage uranium?
3% to 5%.
A nuclear weapon, which uses highly enriched uranium, uses what percentage of uranium.
Over 90%.
Which type of nuclear device is a misused ionizing radiation source, placed to cause harm?
Simple radiation device.
What nuclear devices can easily use fuel rods from a nuclear reactor?
Simple radiation device and RDD.
Which type of nuclear device spreads radiological contamination without a nuclear yield?
RDD. Dirty bomb.
What nuclear device is considered to be homemade or stolen, use explosives designed to cause a nuclear yield, but may result in a partial or no yield release.
IND. Improvised nuclear device.
What are the two nuclear assembly designs of nuclear weapons?
Implosion and gun type.
What highly enriched isotope of over 90% is used in the gun type nuclear weapons assembly?
Uranium – 235.
What are the three basic radiation protection principles.
Time. Distance. Shielding.
What does a flashing blue light indicate on your HRM?
A neutron source is being detected.
What does the “U” showing in the gamma display indicate?
The current radiation level is less than the background level.
In what location is the HRM turned on?
Away from radiological sources in a natural background environment.
What is the greatest danger associated with radioactive alpha and beta particles?
Inhalation or ingestion.
