PROBLEM TO BE SOLVED: To provide an apparatus that successfully forms an image of a deep part of a subject by increasing the average density of irradiation light, in photoacoustic measurement using holding plates and an acoustic contact improving member.SOLUTION: An acoustic wave acquiring apparatus includes: the holding plates for holding a subject via the acoustic contact reinforcement member an acoustic wave detector for receiving an acoustic wave generated from the subject irradiated with light from a light source and converting the acoustic wave into an electric signal and a processor for generating characteristic information of the inside of the subject by using the electric signal. In the acoustic wave acquiring apparatus, the holding plates are subjected to hydrophilic process or the acoustic contact improving member contains a surfactant.COPYRIGHT: (C)2013,JPO&INPIT【課題】保持板と音響接触補強材を用いる光音響測定において、照射光の平均密度を上げて、被検体の深部の画像を良好に形成する装置を提供する。【解決手段】音響接触補強材を介して被検体を保持する保持板と、光源からの光を照射された被検体から発生する音響波を受信して電気信号に変換する音響波検出器と、電気信号を用いて被検体の内部の特性情報を生成する計算処理装置を有し、保持板に親水処理が施されているか、または、音響接触補強材に界面活性剤が含まれている音響波取得装置を用いる。【選択図】図2
