Luminescence and scintillation properties of VUV scintillation crystals based on lu-admixed BaY 2 F 8

Jan Pejchal; Kentaro Fukuda; Martin Nikl; Noriaki Kawaguchi; Yuui Yokota; Takayuki Yanagida; Akira Yoshikawa

doi:10.1109/TNS.2012.2197418

Luminescence and scintillation properties of VUV scintillation crystals based on lu-admixed BaY ₂ F ₈

Jan Pejchal, Kentaro Fukuda, Martin Nikl, Noriaki Kawaguchi, Yuui Yokota, Takayuki Yanagida, Akira Yoshikawa

IMR - Materials Design Division

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

5 Citations (Scopus)

Abstract

Nd and Tm-doped Lu-admixed BaY ₂F ₈ crystals were grown by micro-pulling-down method. Lu was added to modify the host matrix to suppress the unwanted energy transfer from exciton levels to the Tm ³⁺ 4f-levels. It was found that low Tm and Nd codoping does not bring much improvement of the scintillation performance and that 1%Nd-doped BaY _0.8Lu _1.2F ₈ single crystal reached nearly the same scintillation efficiency as the LaF ₃:Nd8% one, which is known as a suitable candidate for a VUV scintillator. It is clear there is a considerable room for an optimization of this material by changing the Lu/Y ratio and increasing the content of Nd. On the other hand, very high Tm concentrations (around 20%) suppress the excitonic emission (and also the 4f-4f emission) while increasing the 5d-4f one significantly.

Original language	English
Article number	6218206
Pages (from-to)	2177-2182
Number of pages	6
Journal	IEEE Transactions on Nuclear Science
Volume	59
Issue number	5 PART 2
DOIs	https://doi.org/10.1109/TNS.2012.2197418
Publication status	Published - 2012

Keywords

Fluorides
rare-earth doping
scintillator
X-ray and gamma-ray detection

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10.1109/TNS.2012.2197418

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@article{786f3240f1e9450dab34f1b6324a604b,

title = "Luminescence and scintillation properties of VUV scintillation crystals based on lu-admixed BaY 2 F 8 ",

abstract = "Nd and Tm-doped Lu-admixed BaY 2F 8 crystals were grown by micro-pulling-down method. Lu was added to modify the host matrix to suppress the unwanted energy transfer from exciton levels to the Tm 3+ 4f-levels. It was found that low Tm and Nd codoping does not bring much improvement of the scintillation performance and that 1%Nd-doped BaY 0.8Lu 1.2F 8 single crystal reached nearly the same scintillation efficiency as the LaF 3:Nd8% one, which is known as a suitable candidate for a VUV scintillator. It is clear there is a considerable room for an optimization of this material by changing the Lu/Y ratio and increasing the content of Nd. On the other hand, very high Tm concentrations (around 20%) suppress the excitonic emission (and also the 4f-4f emission) while increasing the 5d-4f one significantly.",

keywords = "Fluorides, rare-earth doping, scintillator, X-ray and gamma-ray detection",

author = "Jan Pejchal and Kentaro Fukuda and Martin Nikl and Noriaki Kawaguchi and Yuui Yokota and Takayuki Yanagida and Akira Yoshikawa",

note = "Funding Information: Manuscript received November 05, 2011; revised April 06, 2012; accepted April 22, 2012. Date of publication June 14, 2012; date of current version October 09, 2012. This work was supported in part by the Funding Program for Next Generation World-Leading Researchers, Japan Society for Promotion of Science, and also in part by The Czech AV M10010091 and DESY II-20100033 EC projects.",

year = "2012",

doi = "10.1109/TNS.2012.2197418",

language = "English",

volume = "59",

pages = "2177--2182",

journal = "IEEE Transactions on Nuclear Science",

issn = "0018-9499",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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TY - JOUR

T1 - Luminescence and scintillation properties of VUV scintillation crystals based on lu-admixed BaY 2 F 8

AU - Pejchal, Jan

AU - Fukuda, Kentaro

AU - Nikl, Martin

AU - Kawaguchi, Noriaki

AU - Yokota, Yuui

AU - Yanagida, Takayuki

AU - Yoshikawa, Akira

N1 - Funding Information: Manuscript received November 05, 2011; revised April 06, 2012; accepted April 22, 2012. Date of publication June 14, 2012; date of current version October 09, 2012. This work was supported in part by the Funding Program for Next Generation World-Leading Researchers, Japan Society for Promotion of Science, and also in part by The Czech AV M10010091 and DESY II-20100033 EC projects.

PY - 2012

Y1 - 2012

N2 - Nd and Tm-doped Lu-admixed BaY 2F 8 crystals were grown by micro-pulling-down method. Lu was added to modify the host matrix to suppress the unwanted energy transfer from exciton levels to the Tm 3+ 4f-levels. It was found that low Tm and Nd codoping does not bring much improvement of the scintillation performance and that 1%Nd-doped BaY 0.8Lu 1.2F 8 single crystal reached nearly the same scintillation efficiency as the LaF 3:Nd8% one, which is known as a suitable candidate for a VUV scintillator. It is clear there is a considerable room for an optimization of this material by changing the Lu/Y ratio and increasing the content of Nd. On the other hand, very high Tm concentrations (around 20%) suppress the excitonic emission (and also the 4f-4f emission) while increasing the 5d-4f one significantly.

AB - Nd and Tm-doped Lu-admixed BaY 2F 8 crystals were grown by micro-pulling-down method. Lu was added to modify the host matrix to suppress the unwanted energy transfer from exciton levels to the Tm 3+ 4f-levels. It was found that low Tm and Nd codoping does not bring much improvement of the scintillation performance and that 1%Nd-doped BaY 0.8Lu 1.2F 8 single crystal reached nearly the same scintillation efficiency as the LaF 3:Nd8% one, which is known as a suitable candidate for a VUV scintillator. It is clear there is a considerable room for an optimization of this material by changing the Lu/Y ratio and increasing the content of Nd. On the other hand, very high Tm concentrations (around 20%) suppress the excitonic emission (and also the 4f-4f emission) while increasing the 5d-4f one significantly.

KW - Fluorides

KW - rare-earth doping

KW - scintillator

KW - X-ray and gamma-ray detection

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Luminescence and scintillation properties of VUV scintillation crystals based on lu-admixed BaY ₂ F ₈

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