Research theme for competitive and other funds (2)：
2023 - 2027 Data collection and dosimetry methods for sustainable medical exposure national dosimetry
2016 - 2019 Optimization of radiation protection for medical staff during interventional radiology; Radiation protection for the lens of the eye
Papers (22)：
Sumi Yokoyama, Nobuyuki Hamada, Norio Tsujimura, Naoki Kunugita, Kazutaka Nishida, Iwao Ezaki, Masahiro Kato, Hideki Okubo. Regulatory implementation of the occupational equivalent dose limit for the lens of the eye and underlying relevant efforts in Japan. International journal of radiation biology. 2023. 99. 4. 604-619
Sumi Yokoyama, Hideo Tatsuzaki, Yoshihiko Tanimura, Hiroshi Yoshitomi, Shigekazu Hirao, Katsunori Aoki, Shuichi Tachiki, Iwao Ezaki, Katsuya Hoshi, Norio Tsujimura. Radiation exposure to the lens of the eye for Japanese nuclear power plant workers. Journal of radiological protection : official journal of the Society for Radiological Protection. 2022. 42. 3
Sumi Yokoyama, Norio Tsujimura, Makoto Hashimoto, Hiroshi Yoshitomi, Masahiro Kato, Tadahiro Kurosawa, Hideo Tatsuzaki, Hiroshi Sekiguchi, Yasuhiro Koguchi, Koji Ono, et al. The Japan Health Physics Society Guideline on Dose Monitoring for the Lens of the Eye. Journal of Radiation Protection and Research. 2022. 47. 1. 1-7
Shigekazu Hirao, Hideki Kakiuchi, Naofumi Akata, Toshiya Tamari, Shinji Sugihara, Nagayoshi Shima, Sumi Yokoyama, Masahiro Tanaka. Characterization of atmospheric tritiated water concentration in the vicinity of the fukushima daiichi nuclear power plant. Journal of Radioanalytical and Nuclear Chemistry. 2022
Shunya NAKASONE, Sumi YOKOYAMA, Tomoyuki TAKAHASHI, Masakazu OTA, Hideki KAKIUCHI, Shinji SUGIHARA, Shigekazu HIRAO, Noriyuki MOMOSHIMA, Toshiya TAMARI, Nagayoshi SHIMA, et al. Simple Pretreatment Method for Tritium Measurement in Environmental Water Samples using a Liquid Scintillation Counter. Plasma and Fusion Research. 2021. 16. 0. 2405035-2405035
Yokoyama Sumi. Expected role of nursing profession: Viewpoint on radiation protection. The Journal of Radiological Nursing Society of Japan. 2017. 5. 1. 83-83
2017 New Lens Dose Limit Session
(Joint Meeting 50th Annual Meeting of Japan Health Physics Society 16th Annual Meeting of Japanese Society of Radiation Safety Management 2017)
Occupational exposure to the lens of cardiologists during IVR procedures Usefulness of radiation shielding
(Joint Meeting 50th Annual Meeting of Japan Health Physics Society 16th Annual Meeting of Japanese Society of Radiation Safety Management 2017)
Issues behind radiation management of workers at Fukushima Nuclear Power Plant of Tokyo Electric Power Company:From the viewpoint of radiation exposure of the ocular lens and the biological effects to the lens
(JHPS Symposium 2016)
