Absorption target for measuring power of high-intensity focused ultrasound

摘要

An absorption target for measuring power of high-intensity focused ultrasound, comprising a container (2) and a cone target cluster (5). The cone target cluster (5) consists of basic units (1) with the same geometrical shape. The upper part of each basic unit (1) is a pyramid (3), and the lower part of each basic unit (1) is a prismatic base (4). The vertexes of respective side surfaces of the pyramid (3) converge at a perpendicular bisector of the prismatic base (4) to form a cone vertex, and the cross sections of the pyramid (3) and the base (4) are squares, regular triangles or regular hexagons. The bases (4) of the basic units (1) are seamlessly and tightly arrayed at the bottom in the container (2). It may be possible for sound waves of an incident cone target cluster (5) to escape into space outside the cone target cluster (5) only in case of at least twice reflections or scatterings. Open micropores are densely distributed inside the basic units (1) of the cone target cluster (5).