System characterisation of a full body slit scanning radiography machine : theory and experiment

This thesis describes a system model of the imaging chain of the Statscan slit scanning full body radiography machine. A Cascaded Linear-Systems model of the detector was developed and the theoretical DQE, MTF and NPS were compared to measure values of the RQA7 beam quality described in IEC 6222-1. The effect on Detector DQE of various system parameters such as coupling efficiency, CCD noise and pixel binning was quantified. Also detector performance for varous thicknesses of Gd2O2S:Tb screens were analysed.

Grantor dc:publisher.institution

Department of Medicine

Year dc:date.issued

2005

Author dc:creator

• Scheelke, Martin

Advisor dc:contributor.advisor

• Douglas, Tania S

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/11427/3459

OAI identifier oai:identifier

oai:open.uct.ac.za:11427/3459