On the lateral resolution of focused ultrasonic fields from spherically curved transducers
Focused ultrasonic fields produced by spherically curved transducers occur in many areas, as, for example, in medical ultrasonics. Recently, transducers with a central hole have increasingly appeared in practice. The present paper theoretically investigates the lateral field distribution in the geom...
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| Veröffentlicht in: | The Journal of the Acoustical Society of America 2013-11, Vol.134 (5), p.3943-3947 |
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| container_issue | 5 |
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| container_title | The Journal of the Acoustical Society of America |
| container_volume | 134 |
| creator | Beissner, K |
| description | Focused ultrasonic fields produced by spherically curved transducers occur in many areas, as, for example, in medical ultrasonics. Recently, transducers with a central hole have increasingly appeared in practice. The present paper theoretically investigates the lateral field distribution in the geometric focal plane, based on an approach with the Rayleigh integral. Results for the lateral width of the focal maximum in that plane are presented. It turns out that the appearance of a central hole leads to a reduction in the lateral width of the focal maximum, contrary to the behavior of the longitudinal width of that maximum shown earlier. |
| doi_str_mv | 10.1121/1.4823844 |
| format | Article |
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| identifier | ISSN: 0001-4966 |
| ispartof | The Journal of the Acoustical Society of America, 2013-11, Vol.134 (5), p.3943-3947 |
| issn | 0001-4966 1520-8524 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1449266654 |
| source | MEDLINE; AIP Journals Complete; Alma/SFX Local Collection; AIP Acoustical Society of America |
| subjects | Equipment Design High-Intensity Focused Ultrasound Ablation - instrumentation Models, Theoretical Motion Pressure Sound Transducers Ultrasonics - instrumentation |
| title | On the lateral resolution of focused ultrasonic fields from spherically curved transducers |
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