Martin Bech – Niels Bohr Institute - University of Copenhagen

Forward this page to a friend Resize Print Bookmark and Share

Niels Bohr Institute > Research > PhD theses 2014 > 2009 > Martin Bech

 


Martin Bech

Title: X-ray imaging with a grating interferometer

A Ph.D. Thesis submitted May, 2009

The Graduate School of Science Faculty of Science
Niels Bohr Institute University of Copenhagen
Denmark 

Academic supervisors: Robert Feidenhans’l
Franz Pfeiffer

Download Thesis >>

Abstract

X-ray imaging with a grating interferometer

Improved contrast in X-ray images can be obtained through phase contrast and dark-field imaging. Of the different methods for phase contrast imaging, the recently developed grating based interferometer is well suited for use at different X-ray sources, including a standard X-ray tube.

This thesis explains the principles of a grating based interferometer, and the algorithms for tomographic reconstruction of differential phase contrast and dark-field images are derived. Experimental data recorded at three different X-ray sources are presented, and the data quality depending on source properties are discussed.

Download Thesis >>