The document is a tentative research proposal for a PhD program studying the use of MARS spectral X-ray scanning to determine human body fat content. The research aims to use MARS scanning, which collects spectral X-ray information, to quantify fat and other tissues in 3D images with improved diagnostic information over traditional X-rays. The goals are to develop methods to capture high-resolution spectral CT images of body parts and validate the accuracy of fat measurement against standard methods. The objectives are to study the image capture process using MARS scanning and analyze the quantitative images generated with software.