Research and Development of Gadoliniunl Loaded Liquid Scintillator for Daya Bay Neutrino Experiment
Daya Bay reactor anti-neutrino experiment is designed to measure an important parameter, θ<,13>, of neutrino by using anti-neutrino created by Daya Bay and Ling Ao nuclear power plants. The experiment need 200 tonnes gadolinium loaded liquid scintillator (Gd-LS) as target. The purpose of this research is to develop suitable Gd-LS candidates for this experiment, which should have long attenuation length, high light yield, long term stability, and should be compatible with the material used to build the containers. Two kinds of Gd-LS were developed using carboxylic acids 2-ethylhexanoic acid (EHA) and 3, 5, 5- trimethylhexanoic acid (TMHA) as complexing ligands and mesitylene and linear alkvl benzene (LAB) as scintillator solvents. Four Gd-LS samples with different Gd content and complexing ligands were prepared and characterized. The relative light yields and the stabilities of all samples are satisfying, and the values of attenuation length show that TMHA is a better ligand than EHA.
reactor neutrino theta 13 gadolinium loaded liquid scintillator rare earths
Ding Yayun(丁雅韵) Zhang Zhiyong(张智勇) Zhou Pengju(周鹏举) Liu Jinchang(刘金昌) Wang Zhimin(王志民) Zhao Yuliang(赵宇亮)
Key Laboratory of Nuclear Analytical Techniques, Institute of High Energy Physics, the Chinese Acade Key Laboratory of Nuclear Analytical Techniques, Institute of High Energy Physics, the Chinese Acade
国际会议
第五届国际稀土开发与应用研讨会(The Fifth International Conference on Rare Earth Decelopment and Applicatin)
包头
英文
310-313
2007-08-07（万方平台首次上网日期，不代表论文的发表时间）