QUESTIONS AND ANSWERS
The area of the envelope where x-rays should exit the tube is the -
Answer--target window.
The ability of the imaging system to distinguish between small objects that
attenuate the x-ray beam
similarly is known as: -
Answer--contrast resolution
The purpose of beam filtration is to -
Answer--reduce patient dose
Which of the following factors affect beam quantity? -
Answer--mAs, Distance, filtration and kVp
The device that receives the radiation after it exits the patient is the -
Answer--Image receptor.
The amount of light emitted from the display monitor is -
Answer--brightness.
In terms of the x-ray tube, envelope is another name for the -
Answer--glass or metal enclosure.
The rotating anode design uses a disc whose core is made of -
Answer--molybdenum.
Bremsstrahlung means -
Answer--braking radiation
Sievert -
Answer--Unit of effective / Equivalent Dose
Radiation Protection Guidelines -
Answer--Three basic principles should be adhered to when dealing with ra-
diation and making radiographs:
• Time • Distance • Shielding.
These principles form the basis
of a broader radiation safety con
cept called aLaRa (as Low as
Reasonablv achievable)
KVP -
Answer--the difference in potential ap. plied to the
X-ray tube. Referred
to as X-ray quality. It plays a role
in adjusting the amount of pene
tration and exposure in an
, acquisition.