Development of liquid scintillators loaded with alkaline earth molybdate nanoparticles for detection of neutrinoless double-beta decay

被引：13

作者：

Arai, Sae ^{[1
]}

Noguchi, Takio ^{[2
]}

Aida, Tsutomu ^{[2
]}

Yoko, Akira ^{[3
]}

Tomai, Takaaki ^{[4
]}

Adschiri, Tadafumi ^{[3
]}

Koshimizu, Masanori ^{[1
]}

Fujimoto, Yutaka ^{[1
]}

Asai, Keisuke ^{[1
]}

机构：

[1] Tohoku Univ, Grad Sch Engn, Dept Appl Chem, Aoba Ku, 6-6-07 Aoba, Sendai, Miyagi 9808579, Japan

[2] Tohoku Univ, New Ind Creat Hatchery Ctr, Aoba Ku, 6-6-10 Aoba, Sendai, Miyagi 9808579, Japan

[3] Tohoku Univ, WPI Adv Inst Mat Res, Aoba Ku, 2-1-1 Katahira, Sendai, Miyagi 9808577, Japan

[4] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Aoba Ku, 2-1-1 Katahira, Sendai, Miyagi 9808577, Japan

来源：

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN | 2019年 / 127卷 / 01期

关键词：

Neutrinoless double-beta decay; Liquid scintillator; Alkaline earth molybdate; Hydrotherrmal synthesis; CRYSTALLIZATION; NANOCRYSTALS;

D O I：

10.2109/jcersj2.18146

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

To determine whether neutrinoless double-beta decay occurs is an enormous challenge in particle physics. For this purpose, developing a highly transparent liquid scintillator that contains a candidate isotope at high concentration is required. In this work, " Mo-100 was selected as the isotope and surface-modified nanoparticles were applied. AMoO(4) alkaline earth molybdates (A = Ca, Sr, and Ba) were synthesized with a subcritical hydrothermal method so that they were well dispersed in organic solvents. The crystalline phase of the nanoparticles was confirmed with X-ray diffraction measurements. The particle size of SrMoO4 nanoparticles was found to be the smallest from a transmission electron microscope examination. The SrMoO4 nanoparticles were incorporated in liquid scintillators, resulting in high transparency and efficient scintillation. In conclusion, liquid scintillators loaded with organic modified SrMoO4 nanoparticles were successfully developed. (C) 2019 The Ceramic Society of Japan. All rights reserved.

引用

页码：28 / 34

页数：7

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