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 language | English |
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| Title of host publication | Proceedings of the Ultrasonics International Conference |
| Publisher | Publ by Butterworth-Heinemann Ltd |
| Pages | 547-550 |
| Number of pages | 4 |
| ISBN (Print) | 0750618779 |
| Publication status | Published - 1993 Dec 1 |
| Event | Proceedings of the Ultrasonics International Conference - Vienna, Austria Duration: 1993 Jul 6 → 1993 Jul 8 |
Publication series
| Name | Proceedings of the Ultrasonics International Conference |
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Other
| Other | Proceedings of the Ultrasonics International Conference |
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| City | Vienna, Austria |
| Period | 93/7/6 → 93/7/8 |
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.