Gamma-ray responses of Pr:LuYAP and Pr:YAP scintillators

Takayuki Yanagida; Kei Kamada; Yuui Yokota; Yutaka Fujimoto; Shuji Maeo; Akira Yoshikawa

doi:10.1109/TNS.2009.2033680

Gamma-ray responses of Pr:LuYAP and Pr:YAP scintillators

Takayuki Yanagida, Kei Kamada, Yuui Yokota, Yutaka Fujimoto, Shuji Maeo, Akira Yoshikawa

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Pr³⁺ doped LuYAP crystal was grown by the Czochralski method with 1 inch diameter and 10 cm length. In order to compare scintillation characteristics, Pr ³⁺ doped YAP crystal was also grown by the micro-pulling-down method. Absorption spectra of them were measured and Pr ³⁺ 4f → 4f5d and 4f₂ → 4f absorption lines were observed at 230,470, and 600 nm, respectively. In photoluminescence measurements, here excited by Xe lamp pulse of wavelength around 223,250 and 280 nm emission lines due to Pr³⁺ 4f5d → 4f transition were detected. When coupled with PMT R7600 and irradiated by gamma-rays, gamma-ray induced light yields were estimated as 1900 ph/MeV for Pr:LuYAP and 5600 ph/MeV for Pr:YAP. In both crystals, light yield non-proportionality and energy resolution were investigated by individual lines in the gamma-ray energy range from 59.5 keV to 1408 keV. The gamma-ray excited decay time constants turned out to be 9.8 ns for Pr:LuYAP and 9.0 ns for Pr:YAP.

Original language	English
Article number	5485090
Pages (from-to)	1316-1319
Number of pages	4
Journal	IEEE Transactions on Nuclear Science
Volume	57
Issue number	3 PART 2
DOIs	https://doi.org/10.1109/TNS.2009.2033680
Publication status	Published - 2010 Jun 1

Keywords

Gamma-ray detectors
Praseodymium
Radiation detectors
Scintillation detectors

ASJC Scopus subject areas

Nuclear and High Energy Physics
Nuclear Energy and Engineering
Electrical and Electronic Engineering

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title = "Gamma-ray responses of Pr:LuYAP and Pr:YAP scintillators",

abstract = "Pr3+ doped LuYAP crystal was grown by the Czochralski method with 1 inch diameter and 10 cm length. In order to compare scintillation characteristics, Pr 3+ doped YAP crystal was also grown by the micro-pulling-down method. Absorption spectra of them were measured and Pr 3+ 4f → 4f5d and 4f2 → 4f absorption lines were observed at 230,470, and 600 nm, respectively. In photoluminescence measurements, here excited by Xe lamp pulse of wavelength around 223,250 and 280 nm emission lines due to Pr3+ 4f5d → 4f transition were detected. When coupled with PMT R7600 and irradiated by gamma-rays, gamma-ray induced light yields were estimated as 1900 ph/MeV for Pr:LuYAP and 5600 ph/MeV for Pr:YAP. In both crystals, light yield non-proportionality and energy resolution were investigated by individual lines in the gamma-ray energy range from 59.5 keV to 1408 keV. The gamma-ray excited decay time constants turned out to be 9.8 ns for Pr:LuYAP and 9.0 ns for Pr:YAP.",

keywords = "Gamma-ray detectors, Praseodymium, Radiation detectors, Scintillation detectors",

author = "Takayuki Yanagida and Kei Kamada and Yuui Yokota and Yutaka Fujimoto and Shuji Maeo and Akira Yoshikawa",

year = "2010",

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doi = "10.1109/TNS.2009.2033680",

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T1 - Gamma-ray responses of Pr:LuYAP and Pr:YAP scintillators

AU - Yanagida, Takayuki

AU - Kamada, Kei

AU - Yokota, Yuui

AU - Fujimoto, Yutaka

AU - Maeo, Shuji

AU - Yoshikawa, Akira

PY - 2010/6/1

Y1 - 2010/6/1

N2 - Pr3+ doped LuYAP crystal was grown by the Czochralski method with 1 inch diameter and 10 cm length. In order to compare scintillation characteristics, Pr 3+ doped YAP crystal was also grown by the micro-pulling-down method. Absorption spectra of them were measured and Pr 3+ 4f → 4f5d and 4f2 → 4f absorption lines were observed at 230,470, and 600 nm, respectively. In photoluminescence measurements, here excited by Xe lamp pulse of wavelength around 223,250 and 280 nm emission lines due to Pr3+ 4f5d → 4f transition were detected. When coupled with PMT R7600 and irradiated by gamma-rays, gamma-ray induced light yields were estimated as 1900 ph/MeV for Pr:LuYAP and 5600 ph/MeV for Pr:YAP. In both crystals, light yield non-proportionality and energy resolution were investigated by individual lines in the gamma-ray energy range from 59.5 keV to 1408 keV. The gamma-ray excited decay time constants turned out to be 9.8 ns for Pr:LuYAP and 9.0 ns for Pr:YAP.

AB - Pr3+ doped LuYAP crystal was grown by the Czochralski method with 1 inch diameter and 10 cm length. In order to compare scintillation characteristics, Pr 3+ doped YAP crystal was also grown by the micro-pulling-down method. Absorption spectra of them were measured and Pr 3+ 4f → 4f5d and 4f2 → 4f absorption lines were observed at 230,470, and 600 nm, respectively. In photoluminescence measurements, here excited by Xe lamp pulse of wavelength around 223,250 and 280 nm emission lines due to Pr3+ 4f5d → 4f transition were detected. When coupled with PMT R7600 and irradiated by gamma-rays, gamma-ray induced light yields were estimated as 1900 ph/MeV for Pr:LuYAP and 5600 ph/MeV for Pr:YAP. In both crystals, light yield non-proportionality and energy resolution were investigated by individual lines in the gamma-ray energy range from 59.5 keV to 1408 keV. The gamma-ray excited decay time constants turned out to be 9.8 ns for Pr:LuYAP and 9.0 ns for Pr:YAP.

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KW - Praseodymium

KW - Radiation detectors

KW - Scintillation detectors

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