Last Science of Radioaton Flashcards
radiation is either
transmitted or absorbed
less dense radiation is not absorbed what
air
white are (radiation imaging)
solid parts
black are (radiation imaging)
airy parts
gray parts are (radiation imaging)
PARTS THAT ARE NOT ABSORBED
addition or removal of an electron with the usual results of ejecting electrons
ionization
radiation capable of ejecting an orbital electron upon interaction
ionizing raditon
Radiation is incapable of ionizing atomic or molecular systems through a single interaction but excites it.
non-ionizing radiation
sources of radiation
natural
1 cosmic rays
2 terrestrial radiation
3 internally deposited radionuclides
man made radiation
1 medical imaging
2 machines consumer products
3 nuclear power plants
Radiation that has finite range in matter, has mass, has charge, all kinds travel at different speed/velocity
particulate radiation
all particulate radiation are
ionizing radiation
sources are usually from the atoms due to radioactivity
particulate radiation
kinds of particulate radiation
alpha particle
beta particle
positron
negatron
consists of two protons and two neutrons that are tightly bound together
alpha particle
originates from the nucleus of an atom
beta particle
