Quantitative scatter measurement in digital radiography using a photostimulable phosphor imaging system
作者:
Carey E. Floyd,
Joseph Y. Lo,
Harrell G. Chotas,
Carl E. Ravin,
期刊:
Medical Physics
(WILEY Available online 1998)
卷期:
Volume 18,
issue 3
页码: 408-413
ISSN:0094-2405
年代: 1998
DOI:10.1118/1.596687
出版商: American Association of Physicists in Medicine
数据来源: WILEY
摘要:
X‐ray scatter fractions measured with two detectors are compared: a photostimulable phosphor system (PSP) and a conventional film–screen technique. For both detection methods, a beam‐stop technique was used to estimate the scatter fraction in polystyrene phantoms. These scatter fraction measurements are compared to previously reported film‐based measurements. Scatter fractions obtained with the PSP were in good agreement both with measurements using film as well as with most previously reported measurements. For the PSP measurements, repeatability was better than 1%. It was found that the PSP provides a precise x‐ray detector for quantitative scatter measurement in digital radiography.
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