Preliminary characterization of the Duke Integrated-Lens Optical-CT scanner (DIOS)


Conference Paper

© Published under licence by IOP Publishing Ltd. The present study investigates a cost effective and practical non-telecentric optical-CT scanner developed for 3D dosimetry, the Duke Integrated-Lens Optical-CT scanner (DIOS). The DIOS system includes an upgraded light-collimating tank (the LC-tank) made of solid polyurethane with precision curved ends (with lensing functionality) and a precision cylindrical central hollow for the dosimeter. The LC-tank thus collimates light from a small area light source (∼2cm diameter) into parallel rays through the dosimeter, with refocusing of emergent light onto a CCD camera with a focusing lens with an aperture. The solid nature of the LC-Tank dramatically reduces the amount of required refractive matching fluid compared to earlier scanning systems. The aim of this work was to perform preliminary characterization studies of DIOS in comparison to earlier systems, particularly telecentric systems. The preliminary results indicate promising performance for the DIOS approach.

Full Text

Duke Authors

Cited Authors

  • Collins, C; Yoon, SW; Kodra, J; Adamovics, J; Oldham, M

Published Date

  • August 29, 2019

Published In

Volume / Issue

  • 1305 / 1

Electronic International Standard Serial Number (EISSN)

  • 1742-6596

International Standard Serial Number (ISSN)

  • 1742-6588

Digital Object Identifier (DOI)

  • 10.1088/1742-6596/1305/1/012019

Citation Source

  • Scopus