Simulation based collimator design for X-ray diffraction imaging using the GATE toolkit

Author

Schlesinger, Simon ; Bomsdorf, Hartwin

Author_Institution

Fachbereich Phys., Bergische Univ. Wuppertal, Wuppertal, Germany

fYear

2014

fDate

14-17 Oct. 2014

Firstpage

303

Lastpage

307

Abstract

Different approaches to the design of devices for Energy Dispersive X-ray Diffraction (EDXRD) Imaging are compared considering the characteristics of the actually employed X-ray collimation system. For the purpose of quantitative comparison, a time-efficient Monte-Carlo simulation procedure has been developed, utilizing the GATE simulation toolkit. It serves to assess the influence of imperfections caused by energy dependent interactions of the incoming photons with the collimator material. In this contribution the concepts of the simulation program are described and a new EDXRD system based on a pencil beam topology is presented and compared to a 2D fan beam acquisition scheme. Technologies enabling the manufacturing process of the proposed collimator are shown.

Keywords

Monte Carlo methods; X-ray chemical analysis; X-ray diffraction; X-ray imaging; collimators; photons; 2D fan beam acquisition scheme; EDXRD imaging; EDXRD system; GATE simulation toolkit; GATE toolkit; X-ray collimation system; collimator design; collimator material; energy dependent interaction; energy dispersive X-ray diffraction imaging; manufacturing process; pencil beam topology; photons; quantitative comparison; simulation program; time-efficient Monte-Carlo simulation procedure; Collimators; Detectors; Materials; Photonics; Spatial resolution; Topology; X-ray diffraction;

fLanguage

English

Publisher

ieee

Conference_Titel

Imaging Systems and Techniques (IST), 2014 IEEE International Conference on

Conference_Location

Santorini

Type

conf

DOI

10.1109/IST.2014.6958493

Filename

6958493