GXMO Terminology Exam | Verified Exam Questions and Answers |
Latest Updated Study Material 2026
Question:
artifacts
Answer:
An erroneous portion of an image does not accurately
represent the subject of the image; any feature which appears in an image which is not present in
the original imaged object. Image
Question:
Artifact - Any feature which appears in an image which is not present in the original imaged
object. An error on the image which may obscure pertinent anatomy making a repeat necessary.
Film Screen - may be caused by dirt in cassette, mishandling of film, pressure marks, static
electricity, light fog, processor scratches, Pi lines (dirty processor roller)
CR or DR - Quantum mottle, noise - due to low mAs or kVp
CR or DR - Moire pattern - due to use of low ratio grid
Light spots - caused by dust or dirt in CR cassette or PSP; Scratch or tear of PSP
White lines - CR processor error or dirt; Dead pixel/DEL row with DR
Phantom or ghost image - incomplete CR PSP erasure
Background noise/fog - CR PSP not erased prior to use
atomic structure
Answer:
* represents the number of protons in the
nucleus of an atom
Question:
attenuation
Answer:
absorption of the x-ray beam in matter, usually the
human body
, Question:
automatic exposure control (AEC)
Answer:
an electronic circuit within
the x-ray machine that automatically terminates the exposure time when a predetermined
quantity of x-rays has been detected.
Question:
basic biologic effects of radiation exposure
Answer:
1. (acute) high dose
radiation over a short period of time 2. (chronic) low doses over a longer period of time
Question:
beam quality
Answer:
Question:
beam restrictors
Answer:
Question:
beam restrictors contrast
Answer:
Question:
chemical safety
Answer:
Question:
contrast
Answer:
the difference in density between any two adjacent
portions of the image
Latest Updated Study Material 2026
Question:
artifacts
Answer:
An erroneous portion of an image does not accurately
represent the subject of the image; any feature which appears in an image which is not present in
the original imaged object. Image
Question:
Artifact - Any feature which appears in an image which is not present in the original imaged
object. An error on the image which may obscure pertinent anatomy making a repeat necessary.
Film Screen - may be caused by dirt in cassette, mishandling of film, pressure marks, static
electricity, light fog, processor scratches, Pi lines (dirty processor roller)
CR or DR - Quantum mottle, noise - due to low mAs or kVp
CR or DR - Moire pattern - due to use of low ratio grid
Light spots - caused by dust or dirt in CR cassette or PSP; Scratch or tear of PSP
White lines - CR processor error or dirt; Dead pixel/DEL row with DR
Phantom or ghost image - incomplete CR PSP erasure
Background noise/fog - CR PSP not erased prior to use
atomic structure
Answer:
* represents the number of protons in the
nucleus of an atom
Question:
attenuation
Answer:
absorption of the x-ray beam in matter, usually the
human body
, Question:
automatic exposure control (AEC)
Answer:
an electronic circuit within
the x-ray machine that automatically terminates the exposure time when a predetermined
quantity of x-rays has been detected.
Question:
basic biologic effects of radiation exposure
Answer:
1. (acute) high dose
radiation over a short period of time 2. (chronic) low doses over a longer period of time
Question:
beam quality
Answer:
Question:
beam restrictors
Answer:
Question:
beam restrictors contrast
Answer:
Question:
chemical safety
Answer:
Question:
contrast
Answer:
the difference in density between any two adjacent
portions of the image
