Fig.1 A schematic diagram of the experimental setup for high-speed schlieren imaging of shock wave propagation, bubble dynamics and shock wave–bubble interaction produced by an XL-1 lithotripter.
To visualize process of shock wave propagation, high speed schlieren
(Fig. 1 ) and shadowgraph
imaging systems were set up outside and inside the water tank of
the Dornier XL-1 lithotripter. Large field of vision with low magnification
was obtained by using the schlieren imaging system and small field of vision
with large magnification was achieved with shadowgraph imaging system.
Fig. 2 and Fig. 3 show the
photographs of the incident shock wave at different time by using original
reflector. For modified reflector, see Fig. 4 .
Fig.1 A schematic diagram of the experimental setup
for high-speed schlieren imaging of shock wave propagation, bubble dynamics
and shock wave–bubble interaction produced by an XL-1 lithotripter.
Fig. 2 Representative high-speed shadowgraphs (large field
of view) of the incident lithotripter shock wave produced by the XL-1 lithotripter.
The incident shock wave propagates from the bottom to the top of the frame.
The number on top of each image frame indicates the time delay from the
spark discharge in microseconds. (click here to
see the movie (125Kb) of shock wave propagation)
Fig. 3 Representative high-speed shadowgraphs of the incident
lithotripter shock wave produced by the XL-1 lithotripter. The incident
shock wave propagates from the right to the left of the frame. The number
on top of each image frame indicates the time delay from the spark discharge
in microseconds. (click here to see the movie (196Kb)
of shock wave propagation)
Fig. 4 Representative high-speed shadowgraphs of the incident
lithotripter shock wave produced by the XL-1 lithotripter with the annual
ring reflector. The incident shock wave propagates from the bottom to the
top of the frame. The number on top of each image frame indicates the time
delay from the spark discharge in microseconds. (click
here (129kb) to see the movie)
A shadowgraph imaging system was set up inside the water tub of the
Dornier HM-3 lithotripter to visualize the process of shock wave focusing
(Fig. 5). Fig. 6 shows the photographs
of the incident shock wave at different time by using dornier HM-3 lithotripter.
Fig. 5 A schematic diagram of the experimental setup for
high-speed shadowgraph imaging of shock wave propagation, bubble
dynamics and shock wave–bubble interaction produced by an HM-3 lithotripter.
Fig. 6 Representative high-speed shadowgraphs of the incident
lithotripter shock wave produced by the HM-3 lithotripter. The incident
shock wave propagates from the bottom to the top of the frame. The number
on top of each image frame indicates the time delay from the spark discharge
in microseconds. (click here (462kb) to see the movie)