Presentation 2018-12-10
Acoustic focusing to the waveguides utilizing double parabolic reflectors
Kang Chen, Takasuke Irie, Takashi Iijima, Takeshi Morita,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Acoustic waveguides are utilized for guiding sound waves and have been universally exploited for low-loss ultrasound transmission. In this presentation, different physical configurations of waveguides for ultrasound propagation are compared in terms of acoustic pressure, power and propagation modes. To obtain powerful ultrasound, novel configuration is proposed based on parabolic focusing technique, two parabolic reflectors are oppositely arranged for focusing and guiding ultrasound. The proposed mechanism can generate plane and powerful ultrasound with over 2.4 times larger than the conventional configuration in acoustic pressure amplitude, which results in superior performance for ultrasound imaging and therapeutic applications.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Piezoelectric / Ultrasound / Waveguide / Parabolic reflector
Paper # US2018-71
Date of Issue 2018-12-03 (US)

Conference Information
Committee US
Conference Date 2018/12/10(1days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Shinichi Takeuchi(Toin Univ. of Yokohama)
Vice Chair Minoru Kurosawa(Tokyo Inst. of Tech.) / Jun Kondo(Shizuoka Univ.)
Secretary Minoru Kurosawa(Univ. of Tokyo) / Jun Kondo(Kanagawa Univ.)
Assistant Daisuke Koyama(Doshisha Univ.)

Paper Information
Registration To Technical Committee on Ultrasonics
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Acoustic focusing to the waveguides utilizing double parabolic reflectors
Sub Title (in English)
Keyword(1) Piezoelectric
Keyword(2) Ultrasound
Keyword(3) Waveguide
Keyword(4) Parabolic reflector
1st Author's Name Kang Chen
1st Author's Affiliation The University of Tokyo(The Univ. of Tokyo)
2nd Author's Name Takasuke Irie
2nd Author's Affiliation Mircosonic Co., Ltd.(Microsonic Co)
3rd Author's Name Takashi Iijima
3rd Author's Affiliation National Institute of Advanced Industrial Science and Technology(AIST)
4th Author's Name Takeshi Morita
4th Author's Affiliation The University of Tokyo(The Univ. of Tokyo)
Date 2018-12-10
Paper # US2018-71
Volume (vol) vol.118
Number (no) US-353
Page pp.pp.5-10(US),
#Pages 6
Date of Issue 2018-12-03 (US)