Balda M, Wirth S, Niederlöhner D, Heismann B, Hornegger J (2008)
Publication Type: Conference contribution, Conference Contribution
Publication year: 2008
Original Authors: Balda M., Wirth S., Niederlöhner D., Heismann B., Hornegger J.
Book Volume: null
Pages Range: 4028-4033
Event location: Dresden
Journal Issue: null
DOI: 10.1109/NSSMIC.2008.4774168
The design of a CT detector requires a precise detector model, since building prototypes for many different proposed detector geometries is too costly. We introduce a lookup table-based simulation of scintillation detectors on X-ray photon level. It uses energy-resolved sinograms of incoming X-ray intensities as input data and generates photon counts for each channel and reading. The effects of X-ray- and optical cross-talk, temporal cross-talk between readings, Poisson noise and electronics effects are covered. The photon interaction data as well as optical cross-talk distribution are provided in the form of detector specific look-up tables. Unlike standard MonteCarlo simulations of X-ray interaction processes, our approach is capable of simulating whole sinograms in a reasonable amount of time and still offers a very high precision of the detector model. This way the influence of detector effects can be investigated in the reconstructed image data. The simulation is verified against data measured with a CT scanner and data from a fully single photon-based Monte-Carlo simulation in terms of image modulation transfer function (MTF) and detector noise power spectrum (NPS). © 2008 IEEE.
APA:
Balda, M., Wirth, S., Niederlöhner, D., Heismann, B., & Hornegger, J. (2008). Look-up table-based simulation of scintillation detectors in computed tomography. In Proceedings of the 2008 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2008 (pp. 4028-4033). Dresden.
MLA:
Balda, Michael, et al. "Look-up table-based simulation of scintillation detectors in computed tomography." Proceedings of the 2008 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2008, Dresden 2008. 4028-4033.
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