Calibration of CR-39 solid state track detectors with monoenergetic protons from 0.3 MeV to 2.5 MeVYangfan He, Xiaofeng Xi, Shilun Guo, Bing Guo, Changye He, Fulong Liu, Xiaofei Lan, Menglin Qiu, Guangfu Wang, Di Wu, Jihong Wei, Luohuan Wang, Wansha Yang and Donghai ZhangEPJ Web Conf., 239 (2020) 07006DOI: https://doi.org/10.1051/epjconf/202023907006