Dose rate distribution measuring method using personal dosimeters and localization devices. Issue 8 (3rd August 2022)

• Record Type: Journal Article
• Authors: Shinma, Daisuke; Murata, Yukihiro; Ueno, Yuichiro; Yamaguchi, Akihito; Tomizawa, Masahiro; Yamano, Toshiya; Kitamura, Junichi
• Is Part Of: Journal of nuclear science and technology. Volume 59:Issue 8(2022)
• Page Start: 972
• Page End: 982
• Publication Date: 2022-08-03
• Subjects: Dosimetry -- localization -- PHITS -- radiation -- measurement -- wireless -- SLAM -- distribution; Nuclear engineering -- Periodicals; Nuclear physics -- Periodicals; Nuclear energy -- Periodicals; 621.4805
• DOI: 10.1080/00223131.2021.2023369
• Languages: English
• ISSNs: 0022-3131

Abstract

ABSTRACT: To further reduce the radiation exposure of nuclear power plant workers, we propose a new method that enables measurements of radiation distribution. This method uses a worker's position detection device and an electronic personal dosimeter worn by the worker. The dose rate distribution of γ-rays can be measured with high resolution without increasing the workload of radiation management people. To confirm the feasibility of this concept, a test system was built and measurement tests were conducted in an area where a radiation source was located. The dose rate distribution measurement capability of this system produced results comparable to those predicted by a simulated test, with a difference within 4.0 μSv/h. Moreover, we confirmed the applicability of the proposed method to nuclear power plants on the basis of a rough evaluation for an on-site work situation. Graphcal abstract: uf0001