The melt growth of large LuAP single crystals for PET scanners

Performance properties of LuAP, a material of highly promising potential for future PET scanners, are presented, as they relate to crystal growth and composition. The light yield measured in 2×2×10mm3 elements with 0.4–0.5% Ce and cut from large size crystals (100mm long and 15mm in diameter) grown...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2005-01, Vol.537 (1-2), p.168-172
Main Authors: Petrosyan, Ashot, Ovanesyan, Karine, Shirinyan, Grigory, Butaeva, Tatyana, Derdzyan, Marina, Pedrini, Christian, Dujardin, Christophe, Garnier, Nicolas, Kamenskikh, Irina
Format: Article
Language:English
Subjects:
Bridgman
Cerium
Impurities
Light yield
Lutetium
Perovskite
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Summary:Performance properties of LuAP, a material of highly promising potential for future PET scanners, are presented, as they relate to crystal growth and composition. The light yield measured in 2×2×10mm3 elements with 0.4–0.5% Ce and cut from large size crystals (100mm long and 15mm in diameter) grown by the Bridgman technique is improved to 40% LSO. The ratio between light yield measured in vertical and horizontal arrangements in the best crystals is near 90%. The role of chemical purity in respect to divalent impurities is studied.
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2004.07.259