OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 43, Iss. 35 — Dec. 10, 2004
  • pp: 6413–6420

Wire transfer function analysis for castellated dual-energy x-ray detectors

Jer Wang Chan, James Paul Owain Evans, Yen San Yong, and Andrew Monteith  »View Author Affiliations


Applied Optics, Vol. 43, Issue 35, pp. 6413-6420 (2004)
http://dx.doi.org/10.1364/AO.43.006413


View Full Text Article

Enhanced HTML    Acrobat PDF (1184 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

An investigation into the spatial resolving power of a castellated linear dual-energy x-ray detector array is reported. The detector was developed for use in aviation security screening applications. Experiments employing different gauges of lead wire are used to plot a wire transfer function. A numerical simulation is developed to predict and underpin the empirical results. The suitable processing of the castellated detector signals helps to maintain spatial resolving power while affording a 50% reduction in x-ray sensing elements. This encouraging result has formed the basis for an ongoing investigation into materials discrimination capability of the castellated detector array.

© 2004 Optical Society of America

OCIS Codes
(040.1520) Detectors : CCD, charge-coupled device
(110.4100) Imaging systems : Modulation transfer function
(110.7440) Imaging systems : X-ray imaging

History
Original Manuscript: February 24, 2004
Revised Manuscript: September 14, 2004
Manuscript Accepted: September 24, 2004
Published: December 10, 2004

Citation
Jer Wang Chan, James Paul Owain Evans, Yen San Yong, and Andrew Monteith, "Wire transfer function analysis for castellated dual-energy x-ray detectors," Appl. Opt. 43, 6413-6420 (2004)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-35-6413


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. K. W. Dolan, R. W. Ryon, D. J. Schneberk, H. E. Martz, R. D. Rikard, “Explosives detection limitations using dual-energy radiography and computed tomography,” in Proceedings of the First International Symposium on Explosive Detection Technology, S. M. Kahn, ed. (U.S. Department of Transportation, Federal Aviation Administration, N.J., 1991), pp. 252–260.
  2. R. F. Eilbert, K. D. Krug, “Aspects of image recognition in Vivid Technology’s dual-energy X-ray system for explosive detection,” in Applications of Signal and Image Processing in Explosives Detection Systems, J. M. Connelly, S. M. Cheung, eds., Proc. SPIE1824, 127–143 (1992). [CrossRef]
  3. J. P. O. Evans, M. Robinson, “The development of 3D X-ray systems for airport security applications,” in Applications of Signal and Image Processing in Explosives Detection Systems, J. M. Connelly, S. M. Cheung, eds., Proc. SPIE1824, 171–182 (1992). [CrossRef]
  4. J. P. O. Evans, H. W. Hon, “Dynamic stereoscopic x-ray imaging,” NDT & E Int. 35, 337–345 (2002). [CrossRef]
  5. G. D. Boreman, ed., Modulation Transfer Function in Optical and Electro-Optical Systems, Vol. TT52 of the SPIE Tutorial Text Series (SPIE, Bellingham, Wash., 1998).
  6. V. Kaftandjian, Y. M. Zhu, G. Peix, D. Badot, “Contrast transfer function measurement of X-ray solid state linear detectors using bar/space pattern methods,” NDT & E Int. 29, 3–11 (1996). [CrossRef]
  7. J. H. Hubbell, “Photon cross sections, attenuation coefficients, and energy absorption coefficients from 10eV and 100GeV,” NSRDS-NBS 29 (National Bureau of Standards, Washington, D.C., 1969).
  8. S. K. Park, R. A. Schowengerdt, M. A. Kaczynski, “Modulation-transfer-function analysis for sampled image systems,” Appl. Opt. 23, 2572–2582 (1984). [CrossRef] [PubMed]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited