DanB Radiation and Safety Test Prep Flashcards
What was the problem with nitrocellulose films that prompted the development of polyester films? The nitrocellulose films used to
Catch Fire
What kind of imaging does not use ionizing radiation?
MRI
Write the names of three types of intraoral radiographs
PA, Bitewing, Occlusal
What kind of imaging is a standardized radiograph for measurements?
Cephalometric
The purpose of cross-sectional occlusal radiography is identifying
the buccal or lingual location of an object
What kind of images provide the maximum detail?
Intraoral
The A number (Atomic mass number) of an atom means the total number of
Protons and Neutrons
The Word Ionization means
The creation of an Ion Pair
Binding Energy Means
Binding energy is the force that keeps the electrons in orbit
According to Bohr’s model, what is the maximum number of shells or orbits in an atom
7
The Z number (Atomic number) of an atom means the total number of
Protons
What kind of electromagnetic radiation has stronger energy?
Short Wavelength
Which electron has higher binding energy
Inner Shell Electron
What is the charge of a neutron
No Charge
Of the following radiation, which one has the shortest wavelength?
X-rays
Which is the most common interaction of photons with matter
Compton Scattering
How long does radiation stay in the room after radiographic exposure?
Radiation does not stay after exposure
During ionization, what is lost from an atom?
Electron
In Compton’s scattering, which electron is ejected?
Outer Shell Electron
During the interaction of x-rays, an atom underwent excitation. What happened to the atom?
No Loss of Electron
In your clinic, the x-ray machine makes a beeping sound during exposure. How loud is the x-ray?
xray has no sound
Which interaction requires more energy
Photoelectric absorption
What is the role of a step-up transformer?
To multiply the incoming voltage
What is the unit of Current
Ampere