Attenuation length measurements of a liquid scintillator with LabVIEW and reliability evaluation of the device

作者：Gao Long; Yu Bo-Xiang^*; Ding Ya-Yun; Zhou Li; Wen Liang-Jian; Xie Yu-Guang; Wang Zhi-Gang; Cai Xiao; Sun Xi-Lei; Fang Jian; Xue Zhen; Zhang Ai-Wu; Lu Qi-Wen; Sun Li-Jun; Ge Yong-Shuai; Liu Ying-Biao; Niu Shun-Li; Hu Tao; Cao Jun; Lu Jun-Guang

来源：Chinese Physics C, 2013, 37(7): UNSP 076001.

DOI：10.1088/1674-1137/37/7/076001

• attenuation length
• liquid scintillator (LS)
• Beer-Lambert law
• LabVIEW

An attenuation length measurement device was constructed using an oscilloscope and LabVIEW for signal acquisition and processing. The performance of the device has been tested in a variety of ways. The test results show that the set-up has a good stability and high precision (sigma/mean reached 0.4 percent). Besides, the accuracy of the measurement system will decrease by about 17 percent if a filter is used. The attenuation length of a gadolinium-loaded liquid scintillator (Gd-LS) was measured as 15.10+/-0.35 m where Gd-LS was heavily used in the Daya Bay Neutrino Experiment. In addition, one method based on the Beer-Lambert law was proposed to investigate the reliability of the measurement device, the R-square reached 0.9995. Moreover, three purification methods for Linear Alkyl Benzene (LAB) production were compared in the experiment.

• 出版日期2013-7
• 单位山西大学; 中国科学院; 核探测与核电子学国家重点实验室