NDLI: Scintillation Properties of 2-Inch-Diameter Pr:Lu3Al5O12 (LuAG) Single Crystal

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Scintillation Properties of 2-Inch-Diameter Pr:Lu3Al5O12 (LuAG) Single Crystal

Content Provider	Semantic Scholar
Author	Kamada, Kei Yanagida, Tatsuya Tsutsumi, Kousuke Usuki, Yoshiyuki Sato, Mineto Ogino, Hiraku Novoselov, Andrey Yoshikawa, Akira Kobayashi, Michio Sugimoto, Shojiro Saito, Fumio
Copyright Year	2009
Abstract	Pr:LuAG crystals possess interesting properties, such as high density, high light yield, and very fast 5d-4f emission decay time. Recently, we developed a Pr:LuAG single crystal with a diameter of 2 inches for scintillator applications, such as medical imaging. In this study, Pr-doped (Pr:LuAG) single crystals with a diameter of 2 inches were grown by means of the Czochralski method; a body length of up to 90 mm was achieved. The Pr:LuAG crystals produced a homogeneous light yield with approximately 2.5 times less intensity compared to that produced by a conventional Ce:LSO crystal. A sample with dimensions of mm mm mm exhibited energy resolutions of 4.8% at 662 keV, as measured by using a photomultiplier (PMT: Hamamatsu H6531), and 5.8% at 662 keV, as measured by using an Avalanche photodiode (APD: Hamamatsu S8664-55). The Pr:LuAG crystals exhibited a very fast rise time of approximately 0.4 ns, excited by a pulsed X-ray at room temperature. The decay time was approximately 18 ns, along with a noticeable presence of slower decay components (with a decay time of 55.0 ns). Furthermore, the Pr:LuAG crystals showed good linearity between the energy and pulse height within approximately 4% of the standard deviation in the range from 122 keV to 1.4 MeV .
File Format	PDF HTM / HTML
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Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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