[An Axicon lens for the focusing of ultrasound fields].
作者信息
Linge H, Döler W, Harder D
出版信息
Ultraschall Med. 1982 Mar;3(1):30-2.
PMID:7187540
Abstract
In this paper the properties of an ultrasonic axicon lens of 10 cm diameter are investigated. This device generates a narrow ultrasonic beam in a range of 20 cm. The beam width varies from 1.7 to 0.5 mm in the frequency range from 1.7 to 5.5 megahertz. For practical applications a water path is necessary.
摘要
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