Intrinsic resolution of ceramic YAG(Ce), GYAG(Ce), and YAG(Ce,Nd) scintillators

Takayuki Yanagida; Akira Yoshikawa; Madoka Kawaharada; Takeshi Itoh; Fumio Saito

doi:10.1109/NSSMIC.2007.4437250

Intrinsic resolution of ceramic YAG(Ce), GYAG(Ce), and YAG(Ce,Nd) scintillators

Takayuki Yanagida, Akira Yoshikawa, Madoka Kawaharada, Takeshi Itoh, Fumio Saito

Materials Property Division

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Citations (Scopus)

Abstract

We developed transparent ceramic scintillaotrs of Ce doped YAG, Ce and Nd codoped YAG, and Ce doped (GdY)AG, respectively. We cut them with a size of 5 × 5 × 5 mm³ for Ce:YAG and (Ce, Nd):YAG, and 5 × 5 × 2 mm³ for Ce:GYAG. At three temperature conditions, such as +20, 0, and -20°C, a temperature dependence of a light yield are measured, when they are coupled with avalanche photo diode, which is a S8664-55 type APD manufactured by Hamamatsu Photonics. In these conditions, light yield of them turned out to be ∼0.4, ∼0.1, and ∼ 0.25 times as large as that of Tl:CsI crystal. All of them show little temperature dependence of less than 10% in this 40 K temperature change. By measuring circuit noise and statistical noise due to excess noise factor of APD measurement system, we also study the temperature dependence of intrinsic energy resolution of these scintillators, in the range of 60 to 1400 keV. There are little temperature dependence observed, and it turned out to be about 5% at several hundreds keV.

Original language	English
Title of host publication	2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC
Pages	1343-1346
Number of pages	4
DOIs	https://doi.org/10.1109/NSSMIC.2007.4437250
Publication status	Published - 2007 Dec 1
Event	2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC - Honolulu, HI, United States Duration: 2007 Oct 27 → 2007 Nov 3

Publication series

Name	IEEE Nuclear Science Symposium Conference Record
Volume	2
ISSN (Print)	1095-7863

Other

Other	2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC
Country/Territory	United States
City	Honolulu, HI
Period	07/10/27 → 07/11/3

ASJC Scopus subject areas

Computer Vision and Pattern Recognition
Industrial and Manufacturing Engineering

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10.1109/NSSMIC.2007.4437250

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Intrinsic resolution of ceramic YAG(Ce), GYAG(Ce), and YAG(Ce,Nd) scintillators. / Yanagida, Takayuki; Yoshikawa, Akira; Kawaharada, Madoka; Itoh, Takeshi; Saito, Fumio.

2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC. 2007. p. 1343-1346 4437250 (IEEE Nuclear Science Symposium Conference Record; Vol. 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Yanagida, T, Yoshikawa, A, Kawaharada, M, Itoh, T & Saito, F 2007, Intrinsic resolution of ceramic YAG(Ce), GYAG(Ce), and YAG(Ce,Nd) scintillators. in 2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC., 4437250, IEEE Nuclear Science Symposium Conference Record, vol. 2, pp. 1343-1346, 2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC, Honolulu, HI, United States, 07/10/27. https://doi.org/10.1109/NSSMIC.2007.4437250

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abstract = "We developed transparent ceramic scintillaotrs of Ce doped YAG, Ce and Nd codoped YAG, and Ce doped (GdY)AG, respectively. We cut them with a size of 5 × 5 × 5 mm3 for Ce:YAG and (Ce, Nd):YAG, and 5 × 5 × 2 mm3 for Ce:GYAG. At three temperature conditions, such as +20, 0, and -20°C, a temperature dependence of a light yield are measured, when they are coupled with avalanche photo diode, which is a S8664-55 type APD manufactured by Hamamatsu Photonics. In these conditions, light yield of them turned out to be ∼0.4, ∼0.1, and ∼ 0.25 times as large as that of Tl:CsI crystal. All of them show little temperature dependence of less than 10% in this 40 K temperature change. By measuring circuit noise and statistical noise due to excess noise factor of APD measurement system, we also study the temperature dependence of intrinsic energy resolution of these scintillators, in the range of 60 to 1400 keV. There are little temperature dependence observed, and it turned out to be about 5% at several hundreds keV.",

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N2 - We developed transparent ceramic scintillaotrs of Ce doped YAG, Ce and Nd codoped YAG, and Ce doped (GdY)AG, respectively. We cut them with a size of 5 × 5 × 5 mm3 for Ce:YAG and (Ce, Nd):YAG, and 5 × 5 × 2 mm3 for Ce:GYAG. At three temperature conditions, such as +20, 0, and -20°C, a temperature dependence of a light yield are measured, when they are coupled with avalanche photo diode, which is a S8664-55 type APD manufactured by Hamamatsu Photonics. In these conditions, light yield of them turned out to be ∼0.4, ∼0.1, and ∼ 0.25 times as large as that of Tl:CsI crystal. All of them show little temperature dependence of less than 10% in this 40 K temperature change. By measuring circuit noise and statistical noise due to excess noise factor of APD measurement system, we also study the temperature dependence of intrinsic energy resolution of these scintillators, in the range of 60 to 1400 keV. There are little temperature dependence observed, and it turned out to be about 5% at several hundreds keV.

AB - We developed transparent ceramic scintillaotrs of Ce doped YAG, Ce and Nd codoped YAG, and Ce doped (GdY)AG, respectively. We cut them with a size of 5 × 5 × 5 mm3 for Ce:YAG and (Ce, Nd):YAG, and 5 × 5 × 2 mm3 for Ce:GYAG. At three temperature conditions, such as +20, 0, and -20°C, a temperature dependence of a light yield are measured, when they are coupled with avalanche photo diode, which is a S8664-55 type APD manufactured by Hamamatsu Photonics. In these conditions, light yield of them turned out to be ∼0.4, ∼0.1, and ∼ 0.25 times as large as that of Tl:CsI crystal. All of them show little temperature dependence of less than 10% in this 40 K temperature change. By measuring circuit noise and statistical noise due to excess noise factor of APD measurement system, we also study the temperature dependence of intrinsic energy resolution of these scintillators, in the range of 60 to 1400 keV. There are little temperature dependence observed, and it turned out to be about 5% at several hundreds keV.

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Intrinsic resolution of ceramic YAG(Ce), GYAG(Ce), and YAG(Ce,Nd) scintillators

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