©FYNDLAY 2024/2025 ALL RIGHTS RESERVED 8:22PM. A+
GXMO Exam prep Study Guide 100% Verified
And Updated 2025
Central Ray - Answer✔X-rays at the center of the beam
artifacts - Answer✔dirt , misc items on the x-ray / image or tracing that does not accurately
represent the subject of the image
collimater - Answer✔restricting the size and shape of the radiation beam as it exits the x-ray
tube
atomic structure - Answer✔
attenuation - Answer✔absorption of the x-ray beam in matter, usually the human body
Control booth - Answer✔secondary protective barrier occupied by imaging personnel
automatic exposure control (AEC) - Answer✔electronic circuit within the x-ray machine that
automatically terminates the exposure time when a predetermined quantity of x-rays has been
detected
control console - Answer✔where the exposure factors are selected (mA, time and kVp)
basic biologic effects of radiation exposure - Answer✔
detent - Answer✔lock to prevent movement of the x-ray tube
Image receptor (IR) - Answer✔the medium that transforms the x-ray beam into a visible image
beam quality - Answer✔the energy of an x-ray beam
Latent image - Answer✔The invisible image on the x-ray film after exposure but before
processing
beam restrictors - Answer✔changes the shape and size of the primary beam, located just below
the x-ray housing. Ex. cone, collimator
Radiation field - Answer✔area exposed to x-rays based on size and shape of the collimater
beam restrictors contrast - Answer✔
1|Page
, ©FYNDLAY 2024/2025 ALL RIGHTS RESERVED 8:22PM. A+
scatter radiation - Answer✔X-rays scattered back in the direction of the incident X-ray beam.
chemical safety - Answer✔
contrast - Answer✔difference in density between any 2 adjacent portions of the image.
upright cassette holder - Answer✔a vertical device to hold cassette and /or grid
contrast resolution - Answer✔The ability to distinguish very small differences in tissue densities
X-ray beam - Answer✔divergent/conical shape of penetrating, ionizing electromagnetic
radiation having a wavelength much shorter than that of visible light
CR (computed radiography) - Answer✔one of the 2 types of digital imaging systems. CR is
cassette based digital imaging because the image of the body part is obtained using storage
phosphor plates
x-ray table - Answer✔a mechanical device that supports the patients body and contains
accessories (grid, bucky tray, magazines for various film sizes, tilt mechanism, table top
extensions etc)
positioning of the x-ray tube - Answer✔transverse / longitudinal / vertical / angle / tilt
x-ray beam intensity - Answer✔the amount and energy of the x-rays reaching an area of the IR
density - Answer✔The degree of blackness on a radiograph.
Trendelenburg position - Answer✔lying on back with body tilted so that the head is lower than
the feet
differences between digital and film - Answer✔digital is less dose, digital has higher contrast
resolution, digital is quicker
under-table bucky - Answer✔a tray-like device built into the x-ray table to hold cassettes
/image receptors
control panel components - Answer✔time , kVp, mA, AEC (automatic exposure control)
differential attenuation - Answer✔a process where some of the xray beam is absorbed in the
tissue and some passes through the anatomic part
beam filtration - Answer✔
digital basics - Answer✔
detail (sharpness & visibility) - Answer✔
digital image: cassetteless - Answer✔
dose reduction - Answer✔
2|Page
GXMO Exam prep Study Guide 100% Verified
And Updated 2025
Central Ray - Answer✔X-rays at the center of the beam
artifacts - Answer✔dirt , misc items on the x-ray / image or tracing that does not accurately
represent the subject of the image
collimater - Answer✔restricting the size and shape of the radiation beam as it exits the x-ray
tube
atomic structure - Answer✔
attenuation - Answer✔absorption of the x-ray beam in matter, usually the human body
Control booth - Answer✔secondary protective barrier occupied by imaging personnel
automatic exposure control (AEC) - Answer✔electronic circuit within the x-ray machine that
automatically terminates the exposure time when a predetermined quantity of x-rays has been
detected
control console - Answer✔where the exposure factors are selected (mA, time and kVp)
basic biologic effects of radiation exposure - Answer✔
detent - Answer✔lock to prevent movement of the x-ray tube
Image receptor (IR) - Answer✔the medium that transforms the x-ray beam into a visible image
beam quality - Answer✔the energy of an x-ray beam
Latent image - Answer✔The invisible image on the x-ray film after exposure but before
processing
beam restrictors - Answer✔changes the shape and size of the primary beam, located just below
the x-ray housing. Ex. cone, collimator
Radiation field - Answer✔area exposed to x-rays based on size and shape of the collimater
beam restrictors contrast - Answer✔
1|Page
, ©FYNDLAY 2024/2025 ALL RIGHTS RESERVED 8:22PM. A+
scatter radiation - Answer✔X-rays scattered back in the direction of the incident X-ray beam.
chemical safety - Answer✔
contrast - Answer✔difference in density between any 2 adjacent portions of the image.
upright cassette holder - Answer✔a vertical device to hold cassette and /or grid
contrast resolution - Answer✔The ability to distinguish very small differences in tissue densities
X-ray beam - Answer✔divergent/conical shape of penetrating, ionizing electromagnetic
radiation having a wavelength much shorter than that of visible light
CR (computed radiography) - Answer✔one of the 2 types of digital imaging systems. CR is
cassette based digital imaging because the image of the body part is obtained using storage
phosphor plates
x-ray table - Answer✔a mechanical device that supports the patients body and contains
accessories (grid, bucky tray, magazines for various film sizes, tilt mechanism, table top
extensions etc)
positioning of the x-ray tube - Answer✔transverse / longitudinal / vertical / angle / tilt
x-ray beam intensity - Answer✔the amount and energy of the x-rays reaching an area of the IR
density - Answer✔The degree of blackness on a radiograph.
Trendelenburg position - Answer✔lying on back with body tilted so that the head is lower than
the feet
differences between digital and film - Answer✔digital is less dose, digital has higher contrast
resolution, digital is quicker
under-table bucky - Answer✔a tray-like device built into the x-ray table to hold cassettes
/image receptors
control panel components - Answer✔time , kVp, mA, AEC (automatic exposure control)
differential attenuation - Answer✔a process where some of the xray beam is absorbed in the
tissue and some passes through the anatomic part
beam filtration - Answer✔
digital basics - Answer✔
detail (sharpness & visibility) - Answer✔
digital image: cassetteless - Answer✔
dose reduction - Answer✔
2|Page
