Title :
Optimization of the signal dispersion parameters of a dual-energy multimedia imaging sensor
Author :
Giakos, G.C. ; Chowdhury, S. ; Shah, N. ; Guntupalli, S. ; Vedantham, S. ; Suryanarayanan, S. ; Nemer, R. ; Dasgupta, A. ; Mehta, K. ; Patnekar, N.
Author_Institution :
Dept. of Electr. Eng., Akron Univ., OH, USA
fDate :
6/24/1905 12:00:00 AM
Abstract :
In this study, experimental results on the signal dispersion of a multimedia imaging detector, operating on gaseous solid state ionization principles, with specific emphasis on single x-ray exposure dual-energy radiography, are presented. The results of this study indicate that the multimedia detector technology exhibits excellent signal characteristics suitable for a large number of imaging applications. On the other hand, drift distance causes significant effect on both the amplitude and full-width at half maximum (FWHM) due to mobility dispersion and space-charge. An improved signal results with increasing gas pressure.
Keywords :
X-ray detection; biomedical equipment; diagnostic radiography; gas scintillation detectors; image sensors; semiconductor counters; Townsend avalanche; digital radiography; drift distance; dual-energy multimedia imaging sensor; full-width at ha4f maximum; gas microstrip detector; gaseous solid state ionization principles; hybrid detector combination; mobility dispersion; proportional counter; signal dispersion parameters optimization; single X-ray exposure dual-energy radiography; space-charge; Image sensors; Ionization; Optical imaging; Radiography; Sensor phenomena and characterization; Solid state circuits; Space technology; X-ray detection; X-ray detectors; X-ray imaging;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2002. IMTC/2002. Proceedings of the 19th IEEE
Print_ISBN :
0-7803-7218-2
DOI :
10.1109/IMTC.2002.1006863
