Activities to support individual dosimetry of children in Kawamata Town.

This paper does not necessarily reflect the views of the International Commission on Radiological Protection.Kawamata Town in Date District, Fukushima Prefecture is located more than 30 km north-west of Fukushima Daiichi nuclear power plant, but on 22 April 2011, part of the Yamakiya District of Kawamata Town was designated as a planned evacuation area. The exposure of children was a concern in Kawamata Town.

Report of the Japan Health Physics Society ad hoc working group for the Plutonium intake accident.

This paper describes an overview of the radiation protection response to the Plutonium intake accident that occurred at the Plutonium Fuel Facility of the Oarai Research and Development Center of the Japan Atomic Energy Agency on 6 June 2017. In the hood of the analyzing room at the Plutonium Fuel Facility five workers were checking a storage container of fast reactor nuclear fuel material. Around 11:15 a.

Methodology using a portable X-ray fluorescence device for on-site and rapid evaluation of heavy-atom contamination in wounds: a model study for application to plutonium contamination.

Workers decommissioning the Fukushima-Daiichi nuclear power plant damaged from the Great East Japan Earthquake and resulting tsunami are at risk of injury with possible contamination from radioactive heavy atoms including actinides, such as plutonium. We propose a new methodology for on-site and rapid evaluation of heavy-atom contamination in wounds using a portable X-ray fluorescence (XRF) device. In the present study, stable lead was used as the model contaminant substitute for radioactive heavy atoms.

Design of an integrating type neutron dose monitor.

It is intended that deuterium-deuterium reaction experiments will be performed for the next phase of the large helical device (LHD) at National Institute for Fusion Science (NIFS), Toki, Japan. To protect workers against radiation, the characteristics of the radiation field at the LHD workplace should be evaluated. The neutron fluence at the workplace was calculated by means of the radiation transportation code.