Feasibility of a dual wavelength laser optical CT scanner with in-air gel readout

8th International Conference on 3D Radiation Dosimetry

Ramm, D.^1,2 ; Rutten, T.P.^1

Department of Medical Physics, Royal Adelaide Hospital Cancer Centre, SA, Australia^1

School of Chemistry and Physics, University of Adelaide, SA, Australia^2

关键词: Dual wavelength laser;    Experimental investigations;    Gel dosimetry;    Optical attenuation;    Optical CT;    Postirradiation;    Preirradiation;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/573/1/012057/pdf
DOI  :  10.1088/1742-6596/573/1/012057

来源: IOP

【 摘 要 】

Net optical attenuation in optical CT scanning is usually determined by pre and postirradiation scans. Replacement of the pre-irradiation scan by a scan of different wavelength, acquired concurrently with the post irradiation scan is proposed. This would result in greater practicality of gel dosimetry and potentially improved image quality. This study indicates that the approach may be viable, however experimental investigation is required for analysis of the prospective benefits of removing inter-scan variations.