PROBLEM TO BE SOLVED: To provide a photoacoustic measurement probe capable of suppressing the generation of artifacts which interfere with signal observation in photoacoustic measurement.SOLUTION: The photoacoustic measurement probe comprises: a light emission unit 42 for emitting measurement light toward a subject and an acoustic wave detection unit 20 for detecting an acoustic wave generated by the emission of the measurement light inside the subject, where an emission end surface of the light emission unit 42 is positioned in the acoustic wave detection unit side 20 rather than a contact plane of the probe 11, and an optical axis of the emission end surface is tilted to a side opposite the side in which the acoustic wave detection unit 20 is disposed with respect to a normal direction of a detection surface of the acoustic wave detection unit 20.COPYRIGHT: (C)2015,JPO&INPIT【課題】光音響計測において、信号観察の妨げになるようなアーチファクトの発生を抑制する光音響計測用プローブを提供する。【解決手段】測定光を被検体に向けて出射させる光出射部42と、測定光の出射によって被検体内に生じた光音響波を検出する音響波検出部20とを備え、光出射部42の出射端面が、プローブ11の当接平面よりも音響波検出部側20に位置し、上記出射端面における光軸が、音響波検出部20の検出面の法線方向に対して音響波検出部20が位置する側の反対側に傾いている構成にする。【選択図】図2
