Indoor mobile robot of restructural navigation performance test and appraisal appearance

本实用新型涉及一种可重构室内移动机器人导航性能测评仪，包括定位传感器、摄影测量系统、计算机、移动机器人以及设置于移动机器人上的测量标靶；所述定位传感器和摄影测量系统均与计算机连接；所述定位传感器设置于测试环境上方或侧面。本实用新型中多台定位传感器可进行重新组合适应不同面积大小的测试环境，适用于体积大、中、小型号的室内移动机器人导航性能测试

Prediction of Energy Resolution in the JUNO Experiment

International audienceThis paper presents the energy resolution study in the JUNO experiment, incorporating the latest knowledge acquired during the detector construction phase. The determination of neutrino mass ordering in JUNO requires an exceptional energy resolution better than 3% at 1 MeV. To achieve this ambitious goal, significant efforts have been undertaken in the design and production of the key components of the JUNO detector. Various factors affecting the detection of inverse beta decay signals have an impact on the energy resolution, extending beyond the statistical fluctuations of the detected number of photons, such as the properties of liquid scintillator, performance of photomultiplier tubes, and the energy reconstruction algorithm. To account for these effects, a full JUNO simulation and reconstruction approach is employed. This enables the modeling of all relevant effects and the evaluation of associated inputs to accurately estimate the energy resolution. The study reveals an energy resolution of 2.95% at 1 MeV. Furthermore, the study assesses the contribution of major effects to the overall energy resolution budget. This analysis serves as a reference for interpreting future measurements of energy resolution during JUNO data taking. Moreover, it provides a guideline in comprehending the energy resolution characteristics of liquid scintillator-based detectors