The EJ309 liquid scintillator detector and the developed gamma spectrum unfolding procedure are used to study the complex gamma spectra. The EJ309 liquid scintillator detector is calibrated by using measured response functions of the standard gamma sources ¹³³Ba, ¹³⁷Cs, and ⁶⁰Co, which are verified by Monte Carlo simulations for detector calibration accuracy. A gamma spectra unfolding procedure is developed based on the One-fold Gold algorithm, which is used for unfolding simulated complex gamma spectra, experimentally measured response function of ¹³³Ba and ¹³⁷Cs, and composed complex gamma spectra using measured response function of ¹³³Ba and ¹³⁷Cs with different relative intensities (RI). The data of unfolded gamma-ray spectra are compared with the standard data. The results show that the EJ309 liquid scintillator detector and the developed gamma spectra unfolding procedure can quantitative and qualitative analysis of complex gamma spectra with reasonable accuracy.

EJ309液体闪烁体检测器和已开发的伽玛光谱展开程序用于研究复杂的伽玛光谱。通过使用标准伽马源¹³³ Ba，¹³⁷ Cs和⁶⁰ Co的测量响应函数对EJ309液体闪烁体检测器进行校准，并通过蒙特卡洛模拟对检测器的校准精度进行了验证。伽马光谱展开过程是基于单倍金算法，其用于展开模拟复杂的伽马光谱，的实验测得的响应功能的开发的¹³³ Ba和¹³⁷ Cs和使用的测量的响应函数构成复杂的伽马光谱¹³³ Ba和¹³⁷具有不同相对强度（RI）的Cs。将展开的伽马射线光谱数据与标准数据进行比较。结果表明，EJ309液体闪烁体检测器和已开发的伽玛谱展开方法可以对复杂的伽玛谱进行定量和定性分析，并且具有合理的准确度。