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Performance of antiscatter grids in diagnostic radiology: Experimental measurements and Monte Carlo simulation studies
Author(s) -
Chan HeangPing,
Higashida Yoshiharu,
Doi Kunio
Publication year - 1985
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.595670
Subject(s) - monte carlo method , imaging phantom , computational physics , transmission (telecommunications) , standard deviation , radiography , computed radiography , optics , computer science , physics , mathematics , statistics , nuclear physics , image quality , telecommunications , artificial intelligence , image (mathematics)
We have devised an experimental method with which one can accurately measure the transmission of primary radiation and the transmission of total radiation by an antiscatter grid in a setting similar to a practical radiographic examination. We measured the transmission values for 27 combinations of x‐ray tube potentials, phantom thicknesses, screen–film systems, and grid parameters. The standard deviation of one measurement was estimated to be 2.9% and 1.5% for the total and primary transmissions, respectively. The measured grid transmission was compared with results predicted by our Monte Carlo calculations; 92% of the measured and calculated values agree within two standard deviations. This close agreement indicates that our Monte Carlo calculation can accurately predict the performance of antiscatter grids under diagnostic imaging conditions.