TY - JOUR
T1 - Luminescence properties of the Mg co–doped Ce:SrHfO3 ceramics prepared by the Spark Plasma Sintering Method
AU - Chiba, Hiroyuki
AU - Kurosawa, Shunsuke
AU - Harata, Koichi
AU - Murakami, Rikito
AU - Yamaji, Akihiro
AU - Ohashi, Yuji
AU - Pejchal, Jan
AU - Kamada, Kei
AU - Yokota, Yuui
AU - Yoshikawa, Akira
N1 - Funding Information:
This work is partially supported by (i) Japan Society for the Promotion of Science (JSPS) KAKENHI Grant Number 14462961, 15597934, 15619740 (by Grant–in–Aid for Young Scientists(B), etc., S. Kurosawa), (ii) BilateralAS CR–JSPS Joint Research Project suported at Czech side by MEYS, KONTAKT LH14266 grant, (iii) Japan Science and Technology Agency (JST), Development of Systems and Technology for Advanced Measurement and Analysis (SENTAN) (iv) JST, Adaptable & Seamless Technology Transfer Program through Target–driven R&D, (v) the Association for the Progress of New Chemical Technology (vi) The Murata Science Foundation, (vii) Nippon Sheet Glass Foundation for Materials Science and Engineering, (vii) Tonen General Sekiyu Foundation, (viii) Yazaki Memorial Foundation for Science and Technology, (ix)Tokin Science and Technology Promotion Foundation, (x) Intelligent cosmos research institute and (xi) Frontier Research Institute for Interdisciplinary Sciences, Tohoku University. In addition, we would like to thank following persons for their support: Mr. Yoshihiro Nakamura in Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University and Mr. Yoshihiro Murakami, Mr. Hiroshi Uemura, Ms. Keiko Toguchi, Ms. Megumi Sasaki, Ms. Yuka Takeda and Ms. Kuniko Kawaguchi in IMR, Tohoku University.
Funding Information:
This work is partially supported by (i) Japan Society for the Promotion of Science (JSPS) KAKENHI Grant Number 14462961 , 15597934 , 15619740 (by Grant–in–Aid for Young Scientists(B), etc., S. Kurosawa), (ii) BilateralAS CR–JSPS Joint Research Project suported at Czech side by MEYS, KONTAKT LH14266 grant, (iii) Japan Science and Technology Agency (JST) , Development of Systems and Technology for Advanced Measurement and Analysis (SENTAN) (iv) JST , Adaptable & Seamless Technology Transfer Program through Target–driven R&D, (v) the Association for the Progress of New Chemical Technology (vi) The Murata Science Foundation , (vii) Nippon Sheet Glass Foundation for Materials Science and Engineering , (vii) Tonen General Sekiyu Foundation , (viii) Yazaki Memorial Foundation for Science and Technology , (ix) Tokin Science and Technology Promotion Foundation , (x) Intelligent cosmos research institute and (xi) Frontier Research Institute for Interdisciplinary Sciences, Tohoku University . In addition, we would like to thank following persons for their support: Mr. Yoshihiro Nakamura in Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University and Mr. Yoshihiro Murakami, Mr. Hiroshi Uemura, Ms. Keiko Toguchi, Ms. Megumi Sasaki, Ms. Yuka Takeda and Ms. Kuniko Kawaguchi in IMR, Tohoku University.
Publisher Copyright:
© 2016 Elsevier Ltd
PY - 2016/7
Y1 - 2016/7
N2 - 1300 or 1400 °C pre–sintered Al/Ce/Mg:SrHfO3 and Al/Ce:SrHfO3 ceramics were prepared by the Spark Plasma Sintering (SPS) in order to search for a new scintillation material with a high–effective atomic number(Zeff) and good light output. The SrHfO3 has a high Zeff of 60, and high gamma–ray detection efficiency is expected. Meanwhile it has a high melting point of over 2500 °C, and single crystal is hard to be grown. On the other hand, high melting materials can be prepared as ceramics, and the SPS method is a simple process to fabricate the ceramics within a few hours. Thus, we prepared the samples using the SPS method, and their optical and scintillation properties were investigated. We found that Al/Ce/Mg:SrHfO3 and Al/Ce:SrHfO3 ceramics had an emission wavelength at around 400 nm originating from 5d–4f transition of Ce3+. Moreover, Al/Ce/Mg:SrHfO3 pre-sintered at a temperature of 1400 °C had a light output of approximately 5,000 ph/MeV. In this paper, the light output of Mg-co-doped samples was improved compared with the Mg-free ones. The light output also depends on the pre-sintering temperature.
AB - 1300 or 1400 °C pre–sintered Al/Ce/Mg:SrHfO3 and Al/Ce:SrHfO3 ceramics were prepared by the Spark Plasma Sintering (SPS) in order to search for a new scintillation material with a high–effective atomic number(Zeff) and good light output. The SrHfO3 has a high Zeff of 60, and high gamma–ray detection efficiency is expected. Meanwhile it has a high melting point of over 2500 °C, and single crystal is hard to be grown. On the other hand, high melting materials can be prepared as ceramics, and the SPS method is a simple process to fabricate the ceramics within a few hours. Thus, we prepared the samples using the SPS method, and their optical and scintillation properties were investigated. We found that Al/Ce/Mg:SrHfO3 and Al/Ce:SrHfO3 ceramics had an emission wavelength at around 400 nm originating from 5d–4f transition of Ce3+. Moreover, Al/Ce/Mg:SrHfO3 pre-sintered at a temperature of 1400 °C had a light output of approximately 5,000 ph/MeV. In this paper, the light output of Mg-co-doped samples was improved compared with the Mg-free ones. The light output also depends on the pre-sintering temperature.
KW - Ceramics scintillator
KW - High effective atomic number material
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U2 - 10.1016/j.radmeas.2016.02.025
DO - 10.1016/j.radmeas.2016.02.025
M3 - Article
AN - SCOPUS:84962097580
SN - 1350-4487
VL - 90
SP - 287
EP - 291
JO - Radiation Measurements
JF - Radiation Measurements
ER -