z-logo
Premium
X‐ray micro‐CT with a displaced detector array
Author(s) -
Wang Ge
Publication year - 2002
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 - 10.1118/1.1489043
Subject(s) - imaging phantom , detector , scanner , optics , weighting , x ray detector , physics , beam (structure) , artifact (error) , computer science , computer vision , acoustics
Because the sizes of samples differ in x‐ray micro‐CT applications, it is desirable to have a mechanism to change the field of view of a micro‐CT scanner. A well‐known way to double the diameter of the field of view is to displace a detector array by 50%. In this paper, we propose to displace a detector array by an amount of greater than 0% but less than 50% for a continuously adjustable field of view, and formulate a weighting scheme for artifact‐free reconstruction. Then, we perform numerical simulation with the Shepp–Logan phantom to demonstrate the feasibility in fan‐beam and cone‐beam geometry.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here