@article{oai:u-ryukyu.repo.nii.ac.jp:02011206,
 author = {Tamakuma, Yuki and Yamada, Ryohei and Iwaoka, Kazuki and Hosoda, Masahiro and Kuroki, Tomohiro and Mizuno, Hiroyuki and Yamada, Koji and Furukawa, Masahide and Tokonami, Shinji},
 journal = {Perspectives in Science},
 month = {Sep},
 note = {In this study, a portable radioactive plume monitor using a silicon photodiode was developed for the detection of a radioactive plume (e.g. ^<131>I, ^<134>Cs and ^<137>Cs) in an emergency situation. It was found that the background count rate was proportional to ambient dose equivalent rate and the detection limit for the monitor at 20 μSv h^<−1> as an ambient dose equivalent rate was evaluated to be 187 Bq m^<−3> using the ISO11929 method. These results suggest that the detection limit for the system can be decreased effectively by lead shielding with optimized thickness., 論文},
 title = {A portable radioactive plume monitor using a silicon photodiode},
 volume = {12},
 year = {2019}
}