Energy nonlinearity and resolution in liquid scintillator (LS) detectors are correlated and particle-dependent. A unified energy response model for liquid scintillator detectors has been presented in details. This model has advanced a data-driven approach to calibrate the particle-dependent energy response, using both the monoenergetic \(\gamma \)-ray sources and the continuous \(\beta \) spectra of \(^\textrm{12}\textrm{B}\) and Michel \(e^-\) induced by cosmic muons. Monte Carlo studies have demonstrated the effectiveness and robustness of the proposed model, in particular, the positron energy resolution can be extracted in the absence of positron sources. This work will provide a feasible approach of simultaneous calibration of energy nonlinearity and resolution for the running and future LS detectors.

液体闪烁体 (LS) 检测器中的能量非线性和分辨率是相关的并且依赖于粒子。详细介绍了液体闪烁体探测器的统一能量响应模型。该模型使用单能\(\gamma \)射线源和\ (^\textrm{12} \textrm{B}\)和米歇尔\(e^-\)由宇宙 μ 子引起。蒙特卡罗研究证明了所提出模型的有效性和稳健性，特别是在没有正电子源的情况下可以提取正电子能量分辨率。这项工作将为正在运行的和未来的 LS 探测器提供一种同时校准能量非线性和分辨率的可行方法。