LRA 221 FINALS REVIEW 2026 COMPLETE
QUESTIONS AND VERIFIED SOLUTIONS
GRADED A+
◉ CR acquires its image through what. Answer: using storage
phosphor plates to produce projection images
◉ Storage phospher plates are similar to what. Answer: intensifying
screens
◉ The two elements needed to convert light signals into an electrical
signal while using indirect capture DR are. Answer: TFT and
photodiodes
◉ X-ray absorber used in direct capture DR. Answer:
photoconductor
◉ Active element in a storage phospher. Answer: barium
fluorohalide
◉ PSP image capture, to release the latent image, which device is
scanned over the phospher plate. Answer: focused laser light
, ◉ Sequence for PSP image capture. Answer: Phosphor plate, focused
laser light scanner, photomultiplier, analog digital converter, review
station
◉ X-ray energy related to direct capture DR will stimulate a ______,
which eventually is changed into an electrical signal.. Answer:
scintillator
◉ What converts x-ray energy directly to a digital electrical signal.
Answer: photoconductor
◉ Exposure latitude is to conventional radiography as _______ is to
DR.. Answer: dynamic range
◉ Components of pacs. Answer: Image acquisition, display
workstations, archive servers
◉ Are major equipment changes expected when switching a
conventional diagnostic radiography room to one that incorporates
CR.. Answer: no, false
◉ Does indirect capture DR convert absorbed x-ray energy into
visible light. Answer: yes, true
QUESTIONS AND VERIFIED SOLUTIONS
GRADED A+
◉ CR acquires its image through what. Answer: using storage
phosphor plates to produce projection images
◉ Storage phospher plates are similar to what. Answer: intensifying
screens
◉ The two elements needed to convert light signals into an electrical
signal while using indirect capture DR are. Answer: TFT and
photodiodes
◉ X-ray absorber used in direct capture DR. Answer:
photoconductor
◉ Active element in a storage phospher. Answer: barium
fluorohalide
◉ PSP image capture, to release the latent image, which device is
scanned over the phospher plate. Answer: focused laser light
, ◉ Sequence for PSP image capture. Answer: Phosphor plate, focused
laser light scanner, photomultiplier, analog digital converter, review
station
◉ X-ray energy related to direct capture DR will stimulate a ______,
which eventually is changed into an electrical signal.. Answer:
scintillator
◉ What converts x-ray energy directly to a digital electrical signal.
Answer: photoconductor
◉ Exposure latitude is to conventional radiography as _______ is to
DR.. Answer: dynamic range
◉ Components of pacs. Answer: Image acquisition, display
workstations, archive servers
◉ Are major equipment changes expected when switching a
conventional diagnostic radiography room to one that incorporates
CR.. Answer: no, false
◉ Does indirect capture DR convert absorbed x-ray energy into
visible light. Answer: yes, true
