PROBLEM TO BE SOLVED: To provide a compact radon mist jetting unit capable of continuously jetting a radon mist having a desired concentration.SOLUTION: A radon mist jetting unit 1 includes: (1) a radon dissolution tank 2 that accommodates therein radium ore 12 and water 13 and generates radon containing water in which radon is dissolved (2) a radon containing water guide passage 4 that connects the inside of the radon dissolution tank 2 and a radon discharge room 3 to each other (3) mist jetting means 6 arranged on a radon discharge room 3 side end part of the radon containing water guide passage 4 (4) a compressor 7 that causes the mist jetting means 6 to jet a radon mist to an inside 34 of the radon discharge room 3 by pressurizing the inside of the radon dissolution tank 2 to send out the radon containing water in the radon dissolution tank 2 to the radon containing water guide passage 4 and supplying compressed air to the mist jetting means 6 via an air pipe 8 and (5) heating means 5 for heating the radon containing water in the radon containing water guide passage 4.COPYRIGHT: (C)2015,JPO&INPIT【課題】所望濃度のラドンミストを連続して噴射できるコンパクトなラドンミスト噴射ユニットを提供する。【解決手段】ラドンミスト噴射ユニット1は、(1)ラジウム鉱石12及び水13を収容し、ラドンが溶け込んだラドン含有水を生成するラドン溶出水槽2と、(2)ラドン溶出水槽2内とラドン放出室3とを接続するラドン含有水案内路4と、(3)ラドン含有水案内路4のラドン放出室3側端部に配置されたミスト噴射手段6と、(4)ラドン溶出水槽2内を加圧し、ラドン溶出水槽2内のラドン含有水をラドン含有水案内路4へ送り出すと共に、圧縮空気をミスト噴射手段6にエア配管8を介して供給し、ラドンミストをミスト噴射手段6からラドン放出室3の室内34に噴射させるコンプレッサ7と、(5)ラドン含有水案内路4内のラドン含有水を加熱する加熱手段5と、を備えている。【選択図】図1
