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Proceedings Paper

Improved images by a 3.5-MHz array probe using 0.91Pb(Zn1/3Nb2/3)O3-0.09PbTiO3 single crystal
Author(s): Shiroh Saitoh; Takashi Takeuchi; Tsuyoshi Kobayashi; Kouichi Harada; Senji Shimanuki; Yohachi Yamashita
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Paper Abstract

A 96-channel phased array probe using a single-plate 0.91Pb(Zn1/3Nb2/3)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.

Paper Details

Date Published: 21 June 1999
PDF: 8 pages
Proc. SPIE 3664, Medical Imaging 1999: Ultrasonic Transducer Engineering, (21 June 1999); doi: 10.1117/12.350669
Show Author Affiliations
Shiroh Saitoh, Toshiba Corp. (Japan)
Takashi Takeuchi, Toshiba Corp. (Japan)
Tsuyoshi Kobayashi, Toshiba Corp. (Japan)
Kouichi Harada, Toshiba Corp. (Japan)
Senji Shimanuki, Toshiba Corp. (Japan)
Yohachi Yamashita, Toshiba Corp. (Japan)


Published in SPIE Proceedings Vol. 3664:
Medical Imaging 1999: Ultrasonic Transducer Engineering
K. Kirk Shung, Editor(s)

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