Fast, large field-of-view, telecentric optical-CT scanning system for 3D radiochromic dosimetry
- 1 November 2010
- journal article
- Published by IOP Publishing in Journal of Physics: Conference Series
- Vol. 250 (1), 012007-5
- https://doi.org/10.1088/1742-6596/250/1/012007
Abstract
We describe initial experiences with an in-house, fast, large field-of-view optical-CT telecentric scanner (the D uke L arge field of view O ptical-CT S canner (DLOS)). The DLOS system is designed to enable telecentric optical-CT imaging of dosimeters up to 24 cm in diameter with a spatial resolution of 1 mm3, in approximately 10 minutes. These capabilities render the DLOS system a unique device at present. The system is a scaled up version of early prototypes in our lab. This scaling introduces several challenges, including the accurate measurement of a greatly increased range of light attenuation within the dosimeter, and the need to reduce even minor reflections and scattered light within the imaging chain. We present several corrections and techniques that enable accurate, low noise, 3D dosimetery with the DLOS system.This publication has 5 references indexed in Scilit:
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