ACTUAL EXAM PAPER 2026 FULL
QUESTIONS AND SOLUTIONS
⩥ spatial resolution. Answer: Refers to the amount of detail present in
any image.Phosphor layer thickness and pixel size determines resolution
in CR.
⩥ pixel. Answer: A single square within a matrix
⩥ matrix. Answer: a series of very small boxes that form a digital image
⩥ direct conversion. Answer: one step process in DR where flat panel
detectors convert the x-ray energy directly to an electric signal using an
amorphous selenium detector for immediate viewing
⩥ charged coupled device. Answer: component which light enters and is
converted into video or electronic signal
⩥ thin film transistor. Answer: used to read charges collected during an
exposure
, ⩥ photodiode. Answer: A silicon solid state device sensitive to light.
Converts light into an electrical signal.
⩥ scintillator. Answer: Amorphous silicon requires a _____ such as
cesium iodide or a rare earth intensifying screen composed of gadolinum
and lanthanum with oxysulfides. This also converts x-rays to visible
light.
⩥ flat panel detector. Answer: a type of digital detector employing
amorphous silicon or selenium detector material, bonded with thin-film
transistor technology for digital image creation and amplification
⩥ density. Answer: It is the degree of blackening of a radiograph
resulting from radiation exposure and processing and one of the two
photographic properties that comprise visibility of detail.
⩥ automatic exposure controll. Answer: a device that measures the
quantity of radiation that reaches the image receptor and automatically
terminates the exposure when the image receptor has received the
required radiation intensity
⩥ high frequency generator. Answer: , What uses AC and DC power
converters to change the incoming line from 60Hz to 6000Hz?
⩥ three phase generator. Answer: ...