Target mass dependence of photoneutron spectrum for 16.6 MeV photons on medium-heavy mass targetsToshiya Sanami, Tyuet Kim Tran, Hiroshito Yamazaki, Toshiro Itoga, Yoichi Kirihara, Yoshihito Namito, Yasuhito Sakaki, Shuji Miyamoto and Yoshihiro AsanoEPJ Web of Conf., 284 (2023) 01047DOI: https://doi.org/10.1051/epjconf/202328401047