PROBLEM TO BE SOLVED: To make the amount of active oxygen species generated as a result of a distance between electrodes adjustable with a simple operation.SOLUTION: A needle electrode 11 and a plate electrode 21 are arranged opposite each other. The plate electrode 21 is located in a wall part 20, and a high voltage is applied between the needle electrode 11 and the plate electrode 21. Since active oxygen species 3 are generated between the needle electrode 11 and the plate electrode 21, air is blown from a side. A holding part 4 is provided at a position which active oxygen species 3 sent reaches, and holds an object to be decomposed. A penetration member 51 pierces the wall part 20 to make contact with the plate electrode 21. A housing member 53 is located on an opposite side of the plate electrode 21 across the wall part 20, and houses the penetration member 51. An adjustment member 54 enters the inside of the housing member 53 so as to push the penetration member 51 into the plate electrode 21 and also fix a position in the housing member 53.SELECTED DRAWING: Figure 4COPYRIGHT: (C)2018,JPO&INPIT【課題】 簡易な操作により、電極間距離の結果としての活性酸素種の生成量を調節可能とすること。【解決手段】針電極11及び平板電極21は対向させて配置される。壁部20には平板電極21が設置される。針電極11と平板電極21の間に高電圧を印加する。針電極11と平板電極21の間に活性酸素種3が生じるので、側部から送風する。格納部4は、送り込まれた活性酸素種3が到達する位置に設けられ、分解対象を格納する。貫通部材51は、壁部20を貫いて平板電極21に接触する。収容部材53は、壁部20を挟んで平板電極21の反対側に配置され、貫通部材51を収容する。調整部材54は、収容部材53の内部に進入することで貫通部材51を平板電極21に押し込むとともに、収容部材53内での位置を固定可能とする。【選択図】図4
