Influence of sensor arrangements and scintillator crystal properties on the 3D precision of monolithic scintillation detectors in PET

Peter Ojala, Abdelkader Bousselham, Lars Eriksson, Anders Brahme, Christian Bohm

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

This paper reports the characterization and comparison of different sensor configurations for monolithic scintillation crystals via the calculation of a figure of a merit based on statistical (Fischer) information. The optimal precision of maximum likelihood determinations of interaction positions, i.e. where annihilation photons are absorbed in a monolithic (LSO) crystal, is approximated throughout a crystal block via Fischer information (related to the width of the maximum likelihood distribution) evaluated at a grid of points. Realistic positions and thus realistic distributions of points of interaction are estimated by applying a maximum likelihood algorithm to Monte Carlo data. The algorithm was based on pattern recognition using a Monte Carlo generated lookup table and the least square method. The precision of this method is compared with the optimal (Cramer-Rao) limit for selected points.

Original languageEnglish
Title of host publicationIEEE Nuclear Science Symposium Conference Record
Pages3018-3021
Number of pages4
Volume5
DOIs
Publication statusPublished - 1 Dec 2005
Externally publishedYes
EventNuclear Science Symposium Conference Record, 2005 IEEE - , Puerto Rico
Duration: 23 Oct 200529 Oct 2005

Other

OtherNuclear Science Symposium Conference Record, 2005 IEEE
CountryPuerto Rico
Period23/10/0529/10/05

Fingerprint

Scintillation counters
Phosphors
Maximum likelihood
Crystals
Sensors
Table lookup
Scintillation
Pattern recognition
Photons

ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition
  • Industrial and Manufacturing Engineering

Cite this

Ojala, P., Bousselham, A., Eriksson, L., Brahme, A., & Bohm, C. (2005). Influence of sensor arrangements and scintillator crystal properties on the 3D precision of monolithic scintillation detectors in PET. In IEEE Nuclear Science Symposium Conference Record (Vol. 5, pp. 3018-3021). [1596966] https://doi.org/10.1109/NSSMIC.2005.1596966

Influence of sensor arrangements and scintillator crystal properties on the 3D precision of monolithic scintillation detectors in PET. / Ojala, Peter; Bousselham, Abdelkader; Eriksson, Lars; Brahme, Anders; Bohm, Christian.

IEEE Nuclear Science Symposium Conference Record. Vol. 5 2005. p. 3018-3021 1596966.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ojala, P, Bousselham, A, Eriksson, L, Brahme, A & Bohm, C 2005, Influence of sensor arrangements and scintillator crystal properties on the 3D precision of monolithic scintillation detectors in PET. in IEEE Nuclear Science Symposium Conference Record. vol. 5, 1596966, pp. 3018-3021, Nuclear Science Symposium Conference Record, 2005 IEEE, Puerto Rico, 23/10/05. https://doi.org/10.1109/NSSMIC.2005.1596966
Ojala P, Bousselham A, Eriksson L, Brahme A, Bohm C. Influence of sensor arrangements and scintillator crystal properties on the 3D precision of monolithic scintillation detectors in PET. In IEEE Nuclear Science Symposium Conference Record. Vol. 5. 2005. p. 3018-3021. 1596966 https://doi.org/10.1109/NSSMIC.2005.1596966
Ojala, Peter ; Bousselham, Abdelkader ; Eriksson, Lars ; Brahme, Anders ; Bohm, Christian. / Influence of sensor arrangements and scintillator crystal properties on the 3D precision of monolithic scintillation detectors in PET. IEEE Nuclear Science Symposium Conference Record. Vol. 5 2005. pp. 3018-3021
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