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EJNMMI Physics
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Volume 2 Supplement 1

Proceedings of the 4th PSMR Conference on PET/MR and SPECT/MR

Measurement of the point spread function of a pixelated detector array

EJNMMI Physics volume 2, Article number: A10 (2015) Cite this article

In order to further understand the PET/MRI scanner of our group, we measured the point spread function of a preclinical scintillation crystal array with a pitch of 1 mm and a total size of 30 mm ~ 30 mm ~ 12 mm. It is coupled via a lightguide to a dSiPM from Philips Digital Photon Counting, used on the TEK-setup. Crystal identification is done with a centre of gravity algorithm and the whole data analysis is performed with the same processing software as for the PET insert, giving comparable results. The beam is created with a 22 NA-Point-Source and a lead collimator, with 0.5 mm bore diameter. The algorithm sorted 62 % of the coincidences into the correct crystal.

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Authors and Affiliations

  1. Department of Physics of Molecular Imaging Systems, Institute for Experimental Molecular Imaging, RWTH Aachen University, Aachen, Germany

    Christian Ritzer, Patrick Hallen, David Schug & Volkmar Schulz

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  1. Christian Ritzer
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  2. Patrick Hallen
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  3. David Schug
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  4. Volkmar Schulz
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Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0), which permits use, duplication, adaptation, distribution, and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Ritzer, C., Hallen, P., Schug, D. et al. Measurement of the point spread function of a pixelated detector array. EJNMMI Phys 2 (Suppl 1), A10 (2015). https://doi.org/10.1186/2197-7364-2-S1-A10

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  • DOI: https://doi.org/10.1186/2197-7364-2-S1-A10

Keywords

  • Public Health
  • Nuclear Medicine
  • Computational Mathematic
  • Comparable Result
  • Technical Physic