Directionally solidified Eu doped CaF2/Li3AlF6 eutectic scintillator for neutron detection

Kei Kamada; Kousuke Hishinuma; Shunsuke Kurosawa; Yasuhiro Shoji; Jan Pejchal; Yuji Ohashi; Yuui Yokota; Akira Yoshikawa

doi:10.1016/j.optmat.2015.06.004

Directionally solidified Eu doped CaF₂/Li₃AlF₆ eutectic scintillator for neutron detection

Kei Kamada, Kousuke Hishinuma, Shunsuke Kurosawa, Yasuhiro Shoji, Jan Pejchal, Yuji Ohashi, Yuui Yokota, Akira Yoshikawa

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

9 Citations (Scopus)

Abstract

Eu doped CaF₂/Li₃AlF₆ eutectics were grown by μ-PD method. The directionally solidified eutectic with well-aligned 600 nm diameter Eu:CaF₂ scintillator fibers surrounded with Li₃AlF₆ was prepared. The grown eutectics showed an emission peak at 422 nm ascribed to Eu²⁺ 4f-5d transition from Eu:CaF₂ scintillation fiber. Li concentration in the Eu:CaF₂-Li₃AlF₆ eutectic is around 0.038 mol/cm³,which is two times higher than that of LiCaAlF₆ single crystal (0.016 mol/cm³). The light yield of Eu:CaF₂-Li₃AlF₆ eutectic was around 7000 ph/neutron. The decay time was about 550 ns (89%) and 1450 ns (11%).

Original language	English
Pages (from-to)	71-75
Number of pages	5
Journal	Optical Materials
Volume	50
DOIs	https://doi.org/10.1016/j.optmat.2015.06.004
Publication status	Published - 2015 Dec

Keywords

Eutectic
Micro-pulling down
Scintillator

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
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.2015.06.004

Cite this

@article{9ecaa6ea03204c469c8b6f4d4712d939,

title = "Directionally solidified Eu doped CaF2/Li3AlF6 eutectic scintillator for neutron detection",

abstract = "Eu doped CaF2/Li3AlF6 eutectics were grown by μ-PD method. The directionally solidified eutectic with well-aligned 600 nm diameter Eu:CaF2 scintillator fibers surrounded with Li3AlF6 was prepared. The grown eutectics showed an emission peak at 422 nm ascribed to Eu2+ 4f-5d transition from Eu:CaF2 scintillation fiber. Li concentration in the Eu:CaF2-Li3AlF6 eutectic is around 0.038 mol/cm3,which is two times higher than that of LiCaAlF6 single crystal (0.016 mol/cm3). The light yield of Eu:CaF2-Li3AlF6 eutectic was around 7000 ph/neutron. The decay time was about 550 ns (89%) and 1450 ns (11%).",

keywords = "Eutectic, Micro-pulling down, Scintillator",

author = "Kei Kamada and Kousuke Hishinuma and Shunsuke Kurosawa and Yasuhiro Shoji and Jan Pejchal and Yuji Ohashi and Yuui Yokota and Akira Yoshikawa",

note = "Funding Information: This work is partially supported by (i) the funding program for next generation world-leading researchers, JSPS , (ii) Development of Systems and Technology for Advanced Measurement and Analysis, Japan Science and Technology Agency (JST) , (iii) Adaptable & Seamless Technology Transfer Program through Target-driven R&D (A-STEP), JST (iv) Japan Society for the Promotion of Science (JSPS) Grant-in-Aid for Exploratory Research, (v) JSPS Research Fellowships for Young Scientists, (vi) the Health Labour Sciences Research Grant, The Ministry of Health Labour and Welfare and (vii) Czech MEYS KONTAKT Cz-jp collaboration LH14266 project, Crystal Clear Collaboration in CERN, and EC Marie Curie Initial Training Network LUMINET, no. 316906 . In addition, we would like to thank following persons for their support: Mr. Yoshihiro Nakamura in Institute of Multidisciplinary Research for Advanced Materials (IMRAM), and Mr. Hiroshi Uemura, Ms. Keiko Toguchi, Ms. Megumi Sasaki and Ms. Yuka Takeda in IMR, Tohoku University. Publisher Copyright: {\textcopyright} 2015 Elsevier B.V.",

year = "2015",

month = dec,

doi = "10.1016/j.optmat.2015.06.004",

language = "English",

volume = "50",

pages = "71--75",

journal = "Optical Materials",

issn = "0925-3467",

publisher = "Elsevier",

}

TY - JOUR

T1 - Directionally solidified Eu doped CaF2/Li3AlF6 eutectic scintillator for neutron detection

AU - Kamada, Kei

AU - Hishinuma, Kousuke

AU - Kurosawa, Shunsuke

AU - Shoji, Yasuhiro

AU - Pejchal, Jan

AU - Ohashi, Yuji

AU - Yokota, Yuui

AU - Yoshikawa, Akira

N1 - Funding Information: This work is partially supported by (i) the funding program for next generation world-leading researchers, JSPS , (ii) Development of Systems and Technology for Advanced Measurement and Analysis, Japan Science and Technology Agency (JST) , (iii) Adaptable & Seamless Technology Transfer Program through Target-driven R&D (A-STEP), JST (iv) Japan Society for the Promotion of Science (JSPS) Grant-in-Aid for Exploratory Research, (v) JSPS Research Fellowships for Young Scientists, (vi) the Health Labour Sciences Research Grant, The Ministry of Health Labour and Welfare and (vii) Czech MEYS KONTAKT Cz-jp collaboration LH14266 project, Crystal Clear Collaboration in CERN, and EC Marie Curie Initial Training Network LUMINET, no. 316906 . In addition, we would like to thank following persons for their support: Mr. Yoshihiro Nakamura in Institute of Multidisciplinary Research for Advanced Materials (IMRAM), and Mr. Hiroshi Uemura, Ms. Keiko Toguchi, Ms. Megumi Sasaki and Ms. Yuka Takeda in IMR, Tohoku University. Publisher Copyright: © 2015 Elsevier B.V.

PY - 2015/12

Y1 - 2015/12

N2 - Eu doped CaF2/Li3AlF6 eutectics were grown by μ-PD method. The directionally solidified eutectic with well-aligned 600 nm diameter Eu:CaF2 scintillator fibers surrounded with Li3AlF6 was prepared. The grown eutectics showed an emission peak at 422 nm ascribed to Eu2+ 4f-5d transition from Eu:CaF2 scintillation fiber. Li concentration in the Eu:CaF2-Li3AlF6 eutectic is around 0.038 mol/cm3,which is two times higher than that of LiCaAlF6 single crystal (0.016 mol/cm3). The light yield of Eu:CaF2-Li3AlF6 eutectic was around 7000 ph/neutron. The decay time was about 550 ns (89%) and 1450 ns (11%).

AB - Eu doped CaF2/Li3AlF6 eutectics were grown by μ-PD method. The directionally solidified eutectic with well-aligned 600 nm diameter Eu:CaF2 scintillator fibers surrounded with Li3AlF6 was prepared. The grown eutectics showed an emission peak at 422 nm ascribed to Eu2+ 4f-5d transition from Eu:CaF2 scintillation fiber. Li concentration in the Eu:CaF2-Li3AlF6 eutectic is around 0.038 mol/cm3,which is two times higher than that of LiCaAlF6 single crystal (0.016 mol/cm3). The light yield of Eu:CaF2-Li3AlF6 eutectic was around 7000 ph/neutron. The decay time was about 550 ns (89%) and 1450 ns (11%).

KW - Eutectic

KW - Micro-pulling down

KW - Scintillator

UR - http://www.scopus.com/inward/record.url?scp=84947867447&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84947867447&partnerID=8YFLogxK

U2 - 10.1016/j.optmat.2015.06.004

DO - 10.1016/j.optmat.2015.06.004

M3 - Article

AN - SCOPUS:84947867447

SN - 0925-3467

VL - 50

SP - 71

EP - 75

JO - Optical Materials

JF - Optical Materials

ER -