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The effect of anode curvature on radiographic heel effect
Author(s) -
Fritz Steven L.,
Livingston William H.
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 - 10.1118/1.595668
Subject(s) - anode , heel , curvature , materials science , radiography , tungsten , tube (container) , optics , biomedical engineering , physics , composite material , geometry , mathematics , structural engineering , surgery , medicine , metallurgy , electrode , engineering , quantum mechanics
Previous computer modeling of radiographic heel effect has shown that a simple model can give an accurate representation of heel effect for flat anode surfaces. This paper details the extension of this model to allow curved anode surfaces. A fixed‐anode x‐ray tube with a demountable anode was constructed and used to test the predictions of the computational model at 25 kVp using stainless‐steel anodes. The computer model was also used to estimate the magnitude of the heel effect for a tungsten anode at 60 kVp. This work allows determination of the effect of anode curvature, which is an inherent feature of certain recently proposed tube designs for scanning slit radiography.