Improved images by a 3.5-MHz array probe using 0.91Pb(Zn1/3Nb2/3)O3-0.09PbTiO3 single crystal

Shiroh Saitoh; Takashi Takeuchi; Tsuyoshi Kobayashi; Kouichi Harada; Senji Shimanuki; Yohachi Yamashita

doi:10.1117/12.350669

21 June 1999 Improved images by a 3.5-MHz array probe using 0.91Pb(Zn_1/3Nb_2/3)O₃-0.09PbTiO₃ single crystal

Shiroh Saitoh, Takashi Takeuchi, Tsuyoshi Kobayashi, Kouichi Harada, Senji Shimanuki, Yohachi Yamashita

Proceedings Volume 3664, Medical Imaging 1999: Ultrasonic Transducer Engineering; (1999) https://doi.org/10.1117/12.350669
Event: Medical Imaging '99, 1999, San Diego, CA, United States

Abstract

A 96-channel phased array probe using a single-plate 0.91Pb(Zn_1/3Nb_2/3)O₃-0.09PbTiO₃ (PZNT 91/9) single-crystal transducer with dimensions of 14 X 20 mm has been fabricated to realize greater sensitivity and broader bandwidth properties. The center frequency of the probe, 3.5 MHz, was selected to include the bandwidths of two conventional lead zirconate titanate (PZT) ceramic probes with center frequencies of 2.5 and 3.75 MHz. A solder paste was used to connect a flexible printed circuit to the PZNT 91/9 transducer. The echo amplitude of the PZNT 91/9 probe revealed good linearity in a practical voltage range. The echo amplitude of the PZNT 91/9 probe is about 6 dB higher than those of the two PZT probes, and the fractional bandwidth is 30 and 25 percentage points wider, respectively. Ultrasonic image obtained by the PZNT 91/9 probe realized both the penetration of the 2.5-MHz PZT probe and the resolution of the 3.75-MHz PZT probe.

Citation Download Citation

Shiroh Saitoh, Takashi Takeuchi, Tsuyoshi Kobayashi, Kouichi Harada, Senji Shimanuki, and Yohachi Yamashita "Improved images by a 3.5-MHz array probe using 0.91Pb(Zn_1/3Nb_2/3)O₃-0.09PbTiO₃ single crystal", Proc. SPIE 3664, Medical Imaging 1999: Ultrasonic Transducer Engineering, (21 June 1999); https://doi.org/10.1117/12.350669

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