TY - GEN
T1 - Evaluation of a point-spread-function of focusing systems using spherical reflector
AU - Kolosov, Oleg
AU - Yamanaka, Kazushi
AU - Lobkis, Oleg
AU - Zinin, Pavel
N1 - Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 1993
Y1 - 1993
N2 - 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.
AB - 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.
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U2 - 10.1016/b978-0-7506-1877-9.50136-0
DO - 10.1016/b978-0-7506-1877-9.50136-0
M3 - Conference contribution
AN - SCOPUS:0027835814
SN - 0750618779
SN - 9780750618779
T3 - Proceedings of the Ultrasonics International Conference
SP - 547
EP - 550
BT - Proceedings of the Ultrasonics International Conference
PB - Publ by Butterworth-Heinemann Ltd
T2 - Proceedings of the Ultrasonics International Conference
Y2 - 6 July 1993 through 8 July 1993
ER -