Signal dispersion measurements on the gas detector volume of a dual-energy multimedia digital imaging sensor
Date
2003-10-27Type
ArticleAuthor
Giakos, G.C.
Chowdhury, S.
Shah, N.
Guntupalli, S.
Vedantham, S.
Suryanarayanan, S.
Nemer, R.
Dasgupta, A.
Mehta, K.
Evans, E.
Orozco, A.
Kumar, V.
Fraiwan, Luay
Patnekar, N.
Metadata
Show full item recordAbstract
In this study, experimental results on the signal dispersion of a gas detector volume of a multimedia imaging detector, operating on both gaseous and 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 gas detector volume of the multimedia detector technology exhibits excellent signal characteristics suitable for a large number of imaging applications. By focusing on the gas detector element, drift distance causes significant effects on both the amplitude and full-width at half maximum due to mobility dispersion and space-charge. An improved signal results with increasing gas pressure.