PROBLEM TO BE SOLVED: To provide an acoustic matching member easily achieving acoustic matching by preventing an acoustic matching agent from being spilled out from a probe depending on directions of the probe.SOLUTION: A photoacoustic measurement probe 101 includes a light irradiation part 102 for irradiating an analyte with light, and a plurality of detection elements 103 provided on a first surface. The photoacoustic measurement probe further includes: on the first surface, an acoustic wave detection section for detecting an acoustic wave emitted from the analyte 110 and an acoustic matching member 104 that is not deformed by deadweight and, upon coming into contact with the analyte, deformed along the shape of the analyte.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】プローブの向きによって音響整合剤がプローブからこぼれず、音響マッチングを取りやすい音響整合部材を提供する。【解決手段】光音響計測プローブ101は、被検体に光を照射する光照射部102と、第1面に設けられた複数の検出素子103を備えるとともに、被検体110から発せられた音響波を検出する音響波検出部と、自重により変形せず、かつ、被検体に当接することで被検体の形状に沿って変形する音響整合部材104を、第1面に有する。【選択図】図1
