&lt;title&gt;Progress On Strip Beam Digital Radiography Using The Kinestatic Charge Detector&lt;/title&gt;

DiBianca, Frank A.; Fetter, Joan E.; Tenney, C.R.; Vance, Joseph E.; Wagenaar, Douglas J.; McDaniel, David L.; Granfors, Paul R.; Dwyer, Samuel J.; Schneider, Roger H.

doi:10.1117/12.966985

Cited by 7 publications

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“…/981$1O.OO Downloaded From: http://proceedings.spiedigitallibrary.org/ on 06/21/2016 Terms of Use: http://spiedigitallibrary.org/ss/TermsOfUse.aspx Performance parameters of the KCD have been discussed in depth elsewhere [22,23,24,25]. We have investigated its use as a dual-energy x-ray detector detector, which involves the acquisition of two images with different mean x-ray energies that can be reconstructed using a suitable algorithm to form images of two basis materials such as bone and soft tissue.…”

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“…/981$1O.OO Downloaded From: http://proceedings.spiedigitallibrary.org/ on 06/21/2016 Terms of Use: http://spiedigitallibrary.org/ss/TermsOfUse.aspx Performance parameters of the KCD have been discussed in depth elsewhere [22,23,24,25]. /981$1O.OO Downloaded From: http://proceedings.spiedigitallibrary.org/ on 06/21/2016 Terms of Use: http://spiedigitallibrary.org/ss/TermsOfUse.aspx Performance parameters of the KCD have been discussed in depth elsewhere [22,23,24,25].…”

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Dual-energy decomposition using a kinestatic charge detector

et al. 1998

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The Kinestatic Charge Detector (KCD) is an electronic digital strip beam x-ray detector which has been shown to possess a high detective quantum efficiency, good spatial resolution, and good scatter rejection. We have investigated its use as a dual-energy x-ray detector detector, which involves the acquisition of two images with different mean x-ray energies that can be reconstructed using a suitable algorithm to form images of two basis materials such as bone and soft tissue.Dual-energy imaging with a single exposure may be performed with a KCD by segmenting its x-ray collection region into front and back regions. The lower x-ray photons will then be preferentially abosrbed in the front region. Computer simulations were performed to evaluate a segmented KCD's ability to reconstruct various combinations of Plexiglas and aluminum. Actual experimental data were also taken for various Plexiglas and aluminum combinations with a non-i:maging research KCD. The suitability of using analytic calibration functions as decomposition algorithms for aluminum and Plexiglas basis material images was investigated. Fits were performed for the computer simulations using the high-energy and low-energy data, with and without the addition of noise. Similar fitting techniques were used with the experimental KCD data.A true rms accuracy of 150 pm for aluminum and 500 pm for Plexiglas was obtainable from fits for the computer simulated data, even with the addition ofnoise. The experimental data taken with the non-imaging KCD yielded rms errors of approximately 250 pm for aluminum and 1000 m for Plexiglas, comparable to simulated noisy data.We conclude that suitable decomposition algorithms exist for a segmented dual-energy KCD to be able to reconstruct aluminum and Plexiglas material thicknesses to an accuracy sufficient for clinical diagnosis in chest radiography. /981$1O.OO Downloaded From: http://proceedings.spiedigitallibrary.org/ on 06/21/2016 Terms of Use: http://spiedigitallibrary.org/ss/TermsOfUse.aspx Performance parameters of the KCD have been discussed in depth elsewhere [22,23,24,25]. An imaging KCD installed at the University of Tennessee-Memphis Biomedical Engineering Department (UTMEM) has been shown to be capable of providing spatial resolution of about 5 lp/mm, and QDE in the krypton gas utilized of approximately 80% [26]. Downloaded From: http://proceedings.spiedigitallibrary.org/ on 06/21/2016 Terms of Use: http://spiedigitallibrary.org/ss/TermsOfUse.aspx

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“…/981$1O.OO Downloaded From: http://proceedings.spiedigitallibrary.org/ on 06/21/2016 Terms of Use: http://spiedigitallibrary.org/ss/TermsOfUse.aspx Performance parameters of the KCD have been discussed in depth elsewhere [22,23,24,25]. /981$1O.OO Downloaded From: http://proceedings.spiedigitallibrary.org/ on 06/21/2016 Terms of Use: http://spiedigitallibrary.org/ss/TermsOfUse.aspx Performance parameters of the KCD have been discussed in depth elsewhere [22,23,24,25].…”

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