Multivariate analysis on the electric currents measured by a “transXend” detector for ultra-low dose exposure X-ray diagnosis

Author

Kanno, Issei ; Shimazaki, Hironobu ; Imamura, Ryouta ; Shima, Keisuke ; Yamashita, Yukihiko ; Ohtaka, Masahiko ; Hashimoto, Mime ; Ara, K. ; Onabe, Hideaki

Author_Institution

Dept. of Nucl. Eng., Kyoto Univ., Kyoto, Japan

fYear

2012

fDate

Oct. 27 2012-Nov. 3 2012

Firstpage

3219

Lastpage

3222

Abstract

For the energy-resolved computed tomography (CT), the authors developed a current mode X-ray detector, a "transXend detector", which measures X-rays as electric current and gives X-ray energy distribution after analysis. As an application of the transXend detector, thickness distributions of materials are estimated with one transmission measurement, with using two-dimensional map made of the ratio of measured electric currents. With two transmission measurements, a tomography is reconstructed. Large reduction of dose exposure in CT is expected with this method.

Keywords

X-ray detection; biomedical equipment; computerised tomography; silicon radiation detectors; CT; X-ray energy distribution; current mode X-ray detector; electric currents; energy-resolved computed tomography; material thickness distributions; multivariate analysis; transXend detector; transmission measurement; two-dimensional map; ultralow dose exposure X-ray diagnosis;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2012 IEEE

Conference_Location

Anaheim, CA

ISSN

1082-3654

Print_ISBN

978-1-4673-2028-3

Type

conf

DOI

10.1109/NSSMIC.2012.6551735

Filename

6551735