RADIATION SAFETY EXAMINATION SET 2025 QUESTIONS
WITH ANSWERS GUARANTEE A+
✔✔x-radiation that is created when the primary beam interacts with matter -
✔✔secondary radiation
✔✔_________ radiation is less penetrating than primary radiation - ✔✔secondary
✔✔a form of secondary radiation and is the result of an x-ray that has been deflected
from its path by the interaction with matter - ✔✔scatter radiation
✔✔refers to the total transfer of energy from the x-ray photon to the atoms of matter
through which the x-ray beam passes - ✔✔absorption
✔✔ionization takes place, an x-ray photon collides with a loosely bound outer-shell
electron and gives up part of its energy to eject the electron from its orbit; the x-ray
photon loses energy and continues in a different direction at a lower energy level,
incident photon still exists - ✔✔compton scatter
✔✔involves an x-ray photon that has its path altered by matter; occurs when a low
energy x-ray photon interacts with an outer-shell electron; no change in the atom
occurs, and x-ray photon of scattered radiation is produced, no ionization occurs -
✔✔coherent scatter
✔✔to remove long, soft or non-penetrating waves - ✔✔the purpose of filtration
✔✔anything included by the manufacturer - ✔✔inherent filtration
✔✔required by state regulation - ✔✔added filtration
✔✔difference of degree in overall blackness - ✔✔contrast
✔✔lots of black/white, long gray scale, best for perio disease and PA lesions - ✔✔low
contrast
✔✔black/white, short gray scale, best for caries detection - ✔✔high contrast
✔✔increased kVp - ✔✔increased density, darker film
✔✔decreaed kVp - ✔✔decreased density, lighter film
✔✔controlled by kVp, absorption of energy - ✔✔film contrast
,✔✔the picture formed after the film has been exposed to x-rays and then processed into
a visible image. - ✔✔radiograph
✔✔a type of electromagnetic radiation which have a shorter wavelength than visible
light - ✔✔x-rays
✔✔an invisible image on the x-ray film which becomes visible after it has been
processed in the manual or automatic processor - ✔✔latent image
✔✔are produced when electrons are slowed down or stopped by atoms in the target
area where they are aimed - ✔✔x-rays
✔✔can cause damage to living cells through the process of excitation or ionization of
electrons in the orbits around atoms - ✔✔x-rays
✔✔has a negative charge - ✔✔cathode
✔✔has a positive charge - ✔✔anode
✔✔is the source of electrons - ✔✔cathode
✔✔has a filament made of tungsten, due to the high melting point - ✔✔cathode and
anode
✔✔is located in a focusing cup made of molybdenum which has a high melting point
and helps to direct the electrons produced toward the cathode - ✔✔cathode filament
✔✔the electrical current sent through the filament to cause this electron release is
called - ✔✔milliamperage
✔✔the greater the number of electrons released - ✔✔the higher the mA
✔✔the exact area of the anode that the electrons hit - ✔✔focal spot
✔✔when.....collide with the anode, 99% of energy is released in the form of heat, and
1% of energy is in the form of x-rays - ✔✔electrons
✔✔ideally is very small - ✔✔focal spot
✔✔the smaller the focal spot - ✔✔the sharper the radiograph
✔✔x-ray machines come with a set one, we cannot adjust it - ✔✔focal spot
, ✔✔produces the electrons - ✔✔cathode
✔✔is the device which restricts (narrows) the beam of x-rays as they leave the x-ray
machine - ✔✔collimator
✔✔aluminum filter - ✔✔decrease scatter radiation
✔✔is the electrical current that heats the filament - ✔✔milliamperage
✔✔means more electrons will be released from the filament and directed at the anode -
✔✔higher mA
✔✔when more electrons hit the focal spot on the anode - ✔✔more x-rays produced
✔✔this pertains to the size of the electron cloud and thus directly to the number of x-ray
produced - ✔✔mAs
✔✔is responsible for the number or quantity of x-rays - ✔✔mAs
✔✔this gives you the desired mAs, and it gives less time for your patient to move -
✔✔highest mA and smallest time fraction
✔✔is the most common artifact in radiography - ✔✔movement (causes penumbra)
✔✔is the measurement for the maximum energy available at that setting - ✔✔peak
kilovoltage
✔✔measures the power of penetrability (quality) of the x-rays produced - ✔✔kVp
✔✔increase what value to penetrate thick body parts - ✔✔kVp
✔✔the distance from the x-ray tube to the x-ray machine is the SID (source image
distance), or the FFD (also known as....) - ✔✔focal film distance
✔✔refers to the "blackness" of a radiograph - ✔✔density
✔✔is influenced by quantity of x-rays(mAs), quality of x-rays (kVp), type and thickness
of tissue being x-rayed - ✔✔density
✔✔increase mAs and kVp in order to... - ✔✔increase density
✔✔increase developing time and temp of developing fluid - ✔✔increase density
WITH ANSWERS GUARANTEE A+
✔✔x-radiation that is created when the primary beam interacts with matter -
✔✔secondary radiation
✔✔_________ radiation is less penetrating than primary radiation - ✔✔secondary
✔✔a form of secondary radiation and is the result of an x-ray that has been deflected
from its path by the interaction with matter - ✔✔scatter radiation
✔✔refers to the total transfer of energy from the x-ray photon to the atoms of matter
through which the x-ray beam passes - ✔✔absorption
✔✔ionization takes place, an x-ray photon collides with a loosely bound outer-shell
electron and gives up part of its energy to eject the electron from its orbit; the x-ray
photon loses energy and continues in a different direction at a lower energy level,
incident photon still exists - ✔✔compton scatter
✔✔involves an x-ray photon that has its path altered by matter; occurs when a low
energy x-ray photon interacts with an outer-shell electron; no change in the atom
occurs, and x-ray photon of scattered radiation is produced, no ionization occurs -
✔✔coherent scatter
✔✔to remove long, soft or non-penetrating waves - ✔✔the purpose of filtration
✔✔anything included by the manufacturer - ✔✔inherent filtration
✔✔required by state regulation - ✔✔added filtration
✔✔difference of degree in overall blackness - ✔✔contrast
✔✔lots of black/white, long gray scale, best for perio disease and PA lesions - ✔✔low
contrast
✔✔black/white, short gray scale, best for caries detection - ✔✔high contrast
✔✔increased kVp - ✔✔increased density, darker film
✔✔decreaed kVp - ✔✔decreased density, lighter film
✔✔controlled by kVp, absorption of energy - ✔✔film contrast
,✔✔the picture formed after the film has been exposed to x-rays and then processed into
a visible image. - ✔✔radiograph
✔✔a type of electromagnetic radiation which have a shorter wavelength than visible
light - ✔✔x-rays
✔✔an invisible image on the x-ray film which becomes visible after it has been
processed in the manual or automatic processor - ✔✔latent image
✔✔are produced when electrons are slowed down or stopped by atoms in the target
area where they are aimed - ✔✔x-rays
✔✔can cause damage to living cells through the process of excitation or ionization of
electrons in the orbits around atoms - ✔✔x-rays
✔✔has a negative charge - ✔✔cathode
✔✔has a positive charge - ✔✔anode
✔✔is the source of electrons - ✔✔cathode
✔✔has a filament made of tungsten, due to the high melting point - ✔✔cathode and
anode
✔✔is located in a focusing cup made of molybdenum which has a high melting point
and helps to direct the electrons produced toward the cathode - ✔✔cathode filament
✔✔the electrical current sent through the filament to cause this electron release is
called - ✔✔milliamperage
✔✔the greater the number of electrons released - ✔✔the higher the mA
✔✔the exact area of the anode that the electrons hit - ✔✔focal spot
✔✔when.....collide with the anode, 99% of energy is released in the form of heat, and
1% of energy is in the form of x-rays - ✔✔electrons
✔✔ideally is very small - ✔✔focal spot
✔✔the smaller the focal spot - ✔✔the sharper the radiograph
✔✔x-ray machines come with a set one, we cannot adjust it - ✔✔focal spot
, ✔✔produces the electrons - ✔✔cathode
✔✔is the device which restricts (narrows) the beam of x-rays as they leave the x-ray
machine - ✔✔collimator
✔✔aluminum filter - ✔✔decrease scatter radiation
✔✔is the electrical current that heats the filament - ✔✔milliamperage
✔✔means more electrons will be released from the filament and directed at the anode -
✔✔higher mA
✔✔when more electrons hit the focal spot on the anode - ✔✔more x-rays produced
✔✔this pertains to the size of the electron cloud and thus directly to the number of x-ray
produced - ✔✔mAs
✔✔is responsible for the number or quantity of x-rays - ✔✔mAs
✔✔this gives you the desired mAs, and it gives less time for your patient to move -
✔✔highest mA and smallest time fraction
✔✔is the most common artifact in radiography - ✔✔movement (causes penumbra)
✔✔is the measurement for the maximum energy available at that setting - ✔✔peak
kilovoltage
✔✔measures the power of penetrability (quality) of the x-rays produced - ✔✔kVp
✔✔increase what value to penetrate thick body parts - ✔✔kVp
✔✔the distance from the x-ray tube to the x-ray machine is the SID (source image
distance), or the FFD (also known as....) - ✔✔focal film distance
✔✔refers to the "blackness" of a radiograph - ✔✔density
✔✔is influenced by quantity of x-rays(mAs), quality of x-rays (kVp), type and thickness
of tissue being x-rayed - ✔✔density
✔✔increase mAs and kVp in order to... - ✔✔increase density
✔✔increase developing time and temp of developing fluid - ✔✔increase density
