Crystal growth and scintillation properties of Tm:K2NaLuF6

Naoto Abe; Takayuki Yanagidaa; Yuui Yokotaa; Shuji Maeo; Jan Pejchal; Yutaka Fujimoto; Yuuki Furuya; Hidehiko Tanaka; Noriaki Kawaguchi; Kentaro Fukuda; Valery Chani; Kei Kamada; Martin Nikl; Akira Yoshikawa

doi:10.1016/j.optmat.2009.12.004

Crystal growth and scintillation properties of Tm:K₂NaLuF₆

Naoto Abe, Takayuki Yanagidaa, Yuui Yokotaa, Shuji Maeo, Jan Pejchal, Yutaka Fujimoto, Yuuki Furuya, Hidehiko Tanaka, Noriaki Kawaguchi, Kentaro Fukuda, Valery Chani, Kei Kamada, Martin Nikl, Akira Yoshikawa

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

11 Citations (Scopus)

Abstract

Chemically stable and transparent K₂NaLuF₆ single crystals doped with Tm³⁺ ions were grown by the micro-pulling down method (μ-PD). X-ray diffraction measurements showed that the as-grown crystals possess cubic structure with Fm3m space group. The radio- and photo-luminescence spectra of the grown crystals were measured in the vacuum ultraviolet (VUV) and ultraviolet (UV) regions. Tm:K₂NaLuF₆ showed high emission intensity at 188 nm in the radio- and photo-luminescence spectra (λ_exc = 159 nm). The decay time and light yield of Tm:K₂NaLuF₆ were also investigated by ²⁴¹Am 5.5 MeV α-ray irradiation. The main component of the decay time was a 4-8 μs and this emission was considered as 5d-4f emission from 4f^{n - 1}5d high-spin state (parity allowed and spin forbidden transition). In addition to this, the light yield of Tm-doped K₂NaLuF₆ single crystals systematically increased with increasing Tm concentration.

Original language	English
Pages (from-to)	589-594
Number of pages	6
Journal	Optical Materials
Volume	32
Issue number	5
DOIs	https://doi.org/10.1016/j.optmat.2009.12.004
Publication status	Published - 2010 Jan 1

Keywords

Crystal growth from the melt
Fluoride
Scintillator
Single crystal

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Computer Science(all)
Atomic and Molecular Physics, and Optics
Spectroscopy
Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry
Electrical and Electronic Engineering

Access to Document

10.1016/j.optmat.2009.12.004

Cite this

@article{9461d548c8c347d782eccdf2c867a22e,

title = "Crystal growth and scintillation properties of Tm:K2NaLuF6",

abstract = "Chemically stable and transparent K2NaLuF6 single crystals doped with Tm3+ ions were grown by the micro-pulling down method (μ-PD). X-ray diffraction measurements showed that the as-grown crystals possess cubic structure with Fm3m space group. The radio- and photo-luminescence spectra of the grown crystals were measured in the vacuum ultraviolet (VUV) and ultraviolet (UV) regions. Tm:K2NaLuF6 showed high emission intensity at 188 nm in the radio- and photo-luminescence spectra (λexc = 159 nm). The decay time and light yield of Tm:K2NaLuF6 were also investigated by 241Am 5.5 MeV α-ray irradiation. The main component of the decay time was a 4-8 μs and this emission was considered as 5d-4f emission from 4fn - 15d high-spin state (parity allowed and spin forbidden transition). In addition to this, the light yield of Tm-doped K2NaLuF6 single crystals systematically increased with increasing Tm concentration.",

keywords = "Crystal growth from the melt, Fluoride, Scintillator, Single crystal",

author = "Naoto Abe and Takayuki Yanagidaa and Yuui Yokotaa and Shuji Maeo and Jan Pejchal and Yutaka Fujimoto and Yuuki Furuya and Hidehiko Tanaka and Noriaki Kawaguchi and Kentaro Fukuda and Valery Chani and Kei Kamada and Martin Nikl and Akira Yoshikawa",

year = "2010",

month = jan,

day = "1",

doi = "10.1016/j.optmat.2009.12.004",

language = "English",

volume = "32",

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T1 - Crystal growth and scintillation properties of Tm:K2NaLuF6

AU - Abe, Naoto

AU - Yanagidaa, Takayuki

AU - Yokotaa, Yuui

AU - Maeo, Shuji

AU - Pejchal, Jan

AU - Fujimoto, Yutaka

AU - Furuya, Yuuki

AU - Tanaka, Hidehiko

AU - Kawaguchi, Noriaki

AU - Fukuda, Kentaro

AU - Chani, Valery

AU - Kamada, Kei

AU - Nikl, Martin

AU - Yoshikawa, Akira

PY - 2010/1/1

Y1 - 2010/1/1

N2 - Chemically stable and transparent K2NaLuF6 single crystals doped with Tm3+ ions were grown by the micro-pulling down method (μ-PD). X-ray diffraction measurements showed that the as-grown crystals possess cubic structure with Fm3m space group. The radio- and photo-luminescence spectra of the grown crystals were measured in the vacuum ultraviolet (VUV) and ultraviolet (UV) regions. Tm:K2NaLuF6 showed high emission intensity at 188 nm in the radio- and photo-luminescence spectra (λexc = 159 nm). The decay time and light yield of Tm:K2NaLuF6 were also investigated by 241Am 5.5 MeV α-ray irradiation. The main component of the decay time was a 4-8 μs and this emission was considered as 5d-4f emission from 4fn - 15d high-spin state (parity allowed and spin forbidden transition). In addition to this, the light yield of Tm-doped K2NaLuF6 single crystals systematically increased with increasing Tm concentration.

AB - Chemically stable and transparent K2NaLuF6 single crystals doped with Tm3+ ions were grown by the micro-pulling down method (μ-PD). X-ray diffraction measurements showed that the as-grown crystals possess cubic structure with Fm3m space group. The radio- and photo-luminescence spectra of the grown crystals were measured in the vacuum ultraviolet (VUV) and ultraviolet (UV) regions. Tm:K2NaLuF6 showed high emission intensity at 188 nm in the radio- and photo-luminescence spectra (λexc = 159 nm). The decay time and light yield of Tm:K2NaLuF6 were also investigated by 241Am 5.5 MeV α-ray irradiation. The main component of the decay time was a 4-8 μs and this emission was considered as 5d-4f emission from 4fn - 15d high-spin state (parity allowed and spin forbidden transition). In addition to this, the light yield of Tm-doped K2NaLuF6 single crystals systematically increased with increasing Tm concentration.

KW - Crystal growth from the melt

KW - Fluoride

KW - Scintillator

KW - Single crystal

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