Evaluation of a point-spread-function of focusing systems using spherical reflector

Oleg Kolosov, Kazushi Yamanaka, Oleg Lobkis, Pavel Zinin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

A new effective method of the point-spread-function (PSF) evaluation of reflection focusing systems in the proximity of its geometrical focus is proposed. This method is based on the imaging in this reflection system a spherical ball reflector with its center positioned near system focus. It was shown, that imaging of this ball (using the same scanning system as for object imaging, i.e. C-scan) allows to directly obtain spatial distribution of the PSF of the focusing system. Results of the experimental evaluation of the PSF of the factory-made acoustic lenses at frequencies up to 1.2 GHz as well as laboratory made focusing system are given.

Original languageEnglish
Title of host publicationProceedings of the Ultrasonics International Conference
PublisherPubl by Butterworth-Heinemann Ltd
Pages547-550
Number of pages4
ISBN (Print)0750618779
Publication statusPublished - 1993 Dec 1
EventProceedings of the Ultrasonics International Conference - Vienna, Austria
Duration: 1993 Jul 61993 Jul 8

Publication series

NameProceedings of the Ultrasonics International Conference

Other

OtherProceedings of the Ultrasonics International Conference
CityVienna, Austria
Period93/7/693/7/8

ASJC Scopus subject areas

  • Engineering(all)

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    Kolosov, O., Yamanaka, K., Lobkis, O., & Zinin, P. (1993). Evaluation of a point-spread-function of focusing systems using spherical reflector. In Proceedings of the Ultrasonics International Conference (pp. 547-550). (Proceedings of the Ultrasonics International Conference). Publ by Butterworth-Heinemann Ltd.