Detector quantum efficiency

From ICRPaedia
Revision as of 16:04, 12 August 2021 by Chris Clement (talk | contribs) (Created page with "100px|frameless|right|link=ICRP Glossary A measure of the combined effects of the signal (related to image contrast) and noise performance of an i...")
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search
Glossary Icon-2.png

A measure of the combined effects of the signal (related to image contrast) and noise performance of an imaging system, generally expressed as a function of spatial frequency. In radiological modalities, the DQE describes how effectively an x-ray imaging system can produce an image in terms of the signal-to-noise ratio (SNR) relative to an ideal detector for a full range of detail sizes.

Return to Glossary

Previous glossary entries

from ICRP Publication 129, 2015

A widely used metric that describes the quality of an x-ray detector. It measures the efficiency (i.e. signal-to-noise performance) of the detector to produce an image from a given incident fluence. Intuitively it captures how well a detector translates the fluence incident on it into an image relative to an ideal detector.