China Jinping Underground Laboratory provides an ideal site for solar, geo-, and supernova neutrino studies. With a prototype neutrino detector running since 2017, containing 1-ton liquid scintillator, we tested its experimental hardware, performed the detector calibration and simulation, and measured its radioactive backgrounds, as an early stage of the Jinping Neutrino Experiment (JNE). We investigated the radon background and implemented the nitrogen sealing technology to control it. This paper presents the details of these studies and will serve as a key reference for the construction and optimization of the future large detector of JNE.
@article{arxiv.2212.13158,
title = {Performance of the 1-ton Prototype Neutrino Detector at CJPL-I},
author = {Yiyang Wu and Jinjing Li and Shaomin Chen and Wei Dou and Lei Guo and Ziyi Guo and Ghulam Hussain and Ye Liang and Qian Liu and Guang Luo and Wentai Luo and Ming Qi and Wenhui Shao and Jian Tang and Linyan Wan and Zhe Wang and Benda Xu and Tong Xu and Weiran Xu and Yuzi Yang and Lin Zhao and Aiqiang Zhang and Bin Zhang},
journal= {arXiv preprint arXiv:2212.13158},
year = {2023}
}