Substitution Efficiency Test of CH3127I Photoelectric Method for Traditional Radioactive CH3131I MethodYao Tian, Sijun Fan, Weiye Yin, Shuai Zhou, Zhaojie Li, Shuai Yang and Chen WangE3S Web Conf., 617 (2025) 02011DOI: https://doi.org/10.1051/e3sconf/202561702011