Please use this identifier to cite or link to this item: http://hdl.handle.net/11400/4558
Title: Evaluation of the GSO:Ce scintillator in the X-ray energy range from 40 to 140 kV for possible applications in medical X-ray imaging
Authors: Νικολόπουλος, Δημήτριος
Βαλαής, Ιωάννης Γ.
Κανδαράκης, Ιωάννης Σ.
Κάβουρας, Διονύσης Α.
Λινάρδος, Διονύσης
Contributors: Σιανούδης, Ιωάννης Α.
Λουίτζη, Άννα
Δημητρόπουλος, Νικόλαος
Βάττης, Δημήτριος Κ.
Επισκοπάκης, Α.
Νομικός, Κωνσταντίνος Δ.
Παναγιωτάκης, Γεώργιος Σ.
Item type: Journal article
Keywords: X-ray imaging;Nuclear counters;Απεικόνιση με ακτίνες Χ;Ανιχνευτές ακτινοβολίας
Subjects: Medicine
Physics
Ιατρική
Φυσική
Issue Date: 22-Jan-2015
2006
Date of availability: 22-Jan-2015
Publisher: Elsevier Science Ltd
Abstract: The purpose of the present study was to evaluate, under X-ray medical imaging conditions, the X-ray luminescence efficiency (XLE) and the optical quantum gain (OQG) of the Gd2SiO5:Ce scintillator in single crystal form, suitable for tomographic applications. Intrinsic physical properties and light emission characteristics of the Gd2SiO5:Ce scintillator, were also studied. Both experimental and Monte Carlo techniques were used. Various X-ray tube voltages (40–140 kV), currently employed in X-ray imaging applications, were used. XLE was found to vary slowly with X-ray tube voltage from (0.021±0.003) to (0.017±0.003). OQG varied from (317±18) to (466±23) light photons per incident X-ray. These values were adequately high for imaging applications using the particular energy range. Additionally, it was found by Monte Carlo simulations that for crystal thicknesses higher than 0.5 cm both XLE and OQG reached saturation levels, indicating that higher thickness crystals are of no practical use in X-ray medical imaging.
Language: English
Citation: Nikolopoulos, D., Valais, I., Kandarakis, I., Cavouras, D., Linardatos, D., et al. (May 2006). Evaluation of the GSO:Ce scintillator in the X-ray energy range from 40 to 140 kV for possible applications in medical X-ray imaging. Nuclear Instruments and Methods in Physics Research A. 560(2). pp. 577–583. Available from: http://www.sciencedirect.com [Accessed 24/01/2006]
Journal: Nuclear Instruments and Methods in Physics Research A
Type of Journal: With a review process (peer review)
Access scheme: Publicly accessible
License: Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες
URI: http://hdl.handle.net/11400/4558
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