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A method for calibrating non‐screen radiographic film
Author(s) -
Darvell B. W.
Publication year - 1988
Publication title -
australian dental journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.701
H-Index - 71
eISSN - 1834-7819
pISSN - 0045-0421
DOI - 10.1111/j.1834-7819.1988.tb00623.x
Subject(s) - simplicity , radiography , interpretation (philosophy) , contrast (vision) , constant (computer programming) , computer science , optics , process (computing) , mathematics , medical physics , materials science , physics , artificial intelligence , medicine , radiology , quantum mechanics , programming language , operating system
The ‘characteristic curve’ for film response has been shown to be inadequate. A method is proposed to calibrate non‐screen radiographic film response based upon an equation descriptive of the actual irradiation process. The advantages include the total absence of arbitrary decisions and constants, simplicity of application and ready interpretation. In addition, a Contrast Index is derived. Representative results are given.