safety
In regard to the fundamental properties of x-ray:
what type of radiation are x-rays?
electromagnetic radiation
In regard to the fundamental properties of x-ray:
X-rays have the ability to do what?
ionize and release small amounts of energy upon passing through matter.
In regard to the fundamental properties of x-ray:
What is the frequency and wavelength of x-rays?
very high frequency and very short wavelength.
what must occur for ionization to happen during a Compton interaction?
x-ray photon's energy must exceed the energy required to remove the electron from its orbital shell.
what is the result of backscatter?
patient exposure
In regard to the fundamental properties of x-ray:
How do x-rays travel?
packets of energy that travel in wave form.
In regard to the fundamental properties of x-ray:
What can x-rays produce in matter?
chemical and biologic changes in matter through ionization and excitation of atoms and molecules
In regard to the fundamental properties of x-ray:
X-rays interact with matter on the _______ and ______?
atomic and molecular level.
what happens to the remaining energy of the x-ray photon after a Compton interaction?
it changes direction and is emitted as a scattered photon.
what factors influence Compton scatter?
energy level of x-ray beam and thickness of the tissue
In regard to the fundamental properties of x-ray:
are x-rays visible or invisible?
highly penetrating invisible rays.
In regard to the fundamental properties of x-ray:
What forms of radiation can x-rays produce?
secondary and scattered radiation.
what is Compton scatter also known as
Scatter.
1. forward scatter
2. side scatter
3. back scatter
When an x-ray photon is scattered during the Compton interaction, how much of its original intensity remains?
1/1000 or 0.001
In regard to the fundamental properties of x-ray:
what does it mean when x-rays are described as Heterogeneous and polyenergetic?
they have a wide variety of wavelengths and energies
In regard to the fundamental properties of x-ray:
How fast do x-rays travel?
at the speed of light
What type of absorption occurs in the Compton interaction?
partial absorption of the incident x-ray photon.
What is the result of forward scatter?
decreased image contrast
Where is the worst place to be in the room, in regard to scatter radiation?
the head/foot of the patient.
In regard to the fundamental properties of x-ray:
How do x-rays travel?
travel in straight lines.
In regard to the fundamental properties of x-ray:
X-rays contain_____?
no mass and no electrical charge
What happens during the Compton interaction?
incident photon interacts with an outer shell electron of a target atom and ejects the electron.
what is the result of side scatter?
occupational exposure
what happens to wavelength after scatter?
wavelength gets longer