@article{oai:u-ryukyu.repo.nii.ac.jp:02011287, author = {Akata, Naofumi and Kakiuchi, Hideki and Tanaka, Masahiro and Shima, Nagayoshi and Shiroma, Yoshitaka and Tokonami, Shinji and Hosoda, Masahiro and Ishikawa, Yoshio and Furukawa, Masahide and Sanada, Tetsuya}, journal = {Plasma and Fusion Research}, month = {Jun}, note = {We have developed a rapid sampling system for measuring the tritium in atmospheric water vapor. The system consists of a high-efficiency particulate air filter cartridge, an oil-free compressor, a water-vapor-separating module with hollow fiber membranes, two cold traps, and an oil-free rotary pump. Compressed air (0.4 - 0.7MPa) is introduced into the water-vapor-separation module, which consists of a stainless steel column containing polyimide membrane tubes. Water vapor permeates through the tubes and is collected by cold traps cooled with dry ice and ethanol. The module is heated with a flexible heater to control its temperature. We have determined the recovery yields under various sampling conditions and find that this system can collect atmospheric water vapor with a recovery yield of >99%. This system can thus be a useful tool for understanding short-term observations of tritium in atmospheric water vapor., 論文}, title = {Development of Rapid Sampling System of Atmospheric Water Vapor for Tritium Measurement}, volume = {13}, year = {2018} }