OSCILLATOR FOR ULTRASONIC WAVE RECEPTION, ITS MANUFACTURING METHOD, ULTRASONIC WAVE PROBE AND ULTRASONIC WAVE MEDICAL DIAGNOSTIC IMAGING SYSTEM

摘要

The present invention is to provide an oscillator for ultrasonic wave reception which is excellent in piezoelectric characteristic and thermal resistance and is suitable for high frequency and broad band, a manufacturing method of the oscillator, an ultrasonic wave probe employing the oscillator, and an ultrasonic wave medical diagnostic imaging system. The oscillator for ultrasonic wave reception of the invention is used in a probe for an ultrasonic wave medical diagnostic imaging system, and comprises a piezoelectric material for ultrasonic wave reception, wherein the piezoelectric material for ultrasonic wave reception is an organic piezoelectric material having vinylidene fluoride as a main component, and the organic piezoelectric material has been heat treated and has a relative dielectric constant in a thickness resonance frequency being 10 or more.