Title :
Line spread function (LSF) study of a multimedia detector for X-ray digital imaging
Author :
Chowdhury, S. ; Giakos, G.C.
Author_Institution :
Dept. of Biomed. Eng., Akron Univ., OH, USA
Abstract :
An experimental study is in process aimed at enhancing the signal line spread function (LSF) of a novel imaging sensor which utilizes gas and semiconductor detector volumes. Preliminary results indicate the presence of general space charge nonlinearities which are partially reduced by adding a small amount of methane. A significant improvement of the signal LSF is expected by adding traces of polar molecules with low ionization potential. The final goal of this study is to develop a high resolution imaging sensor for dual-energy medical imaging
Keywords :
X-ray detection; X-ray imaging; biomedical imaging; gas sensors; image sensors; X-ray digital imaging; dual-energy medical imaging; gas detector; high resolution imaging sensor; ionization potential; line spread function; multimedia detector; polar molecules; semiconductor detector; space charge nonlinearities; Gas detectors; High-resolution imaging; Image sensors; Ionization; Optical imaging; Signal processing; Space charge; X-ray detection; X-ray detectors; X-ray imaging;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1999. IMTC/99. Proceedings of the 16th IEEE
Conference_Location :
Venice
Print_ISBN :
0-7803-5276-9
DOI :
10.1109/IMTC.1999.776045
