k-Wave

1. Archana
   

   Member
   Joined: Sep '18
   Posts: 3

   Hello

   Please could you tell me how to simulate the following parameters for a curved ultrasound transducer:
   "The ultrasound transducer used is a custom designed single-element focused transducer (Blatek, Inc., State College, PA) having a center frequency of 0.5 MHz, a diameter of 30 mm, and a focal length of 30 mm."
   (Reference: http://iopscience.iop.org/article/10.1088/1741-2560/13/5/056002/meta#jneaa3149s2)

   I tried using the "Simulating the transducer field patterns" example related to the k-wave toolbox but makeArc or makeBowl functions requires an input of a focus point rather than the focal length.

   Thank you

   Regards
   Archana

   Posted 6 years ago #

2. Bradley Treeby
   

   Developer
   Joined: Mar '10
   Posts: 1,643

   Hi Archana,

   The radius input of the makeBowl function is equivalent to the focal length. The focus_pos input doesn't change the shape of the bowl, just the direction that it is pointing in the grid. The same holds for makeArc.

   Brad.

   Posted 6 years ago #

3. aduer
   

   Member
   Joined: Oct '22
   Posts: 1

   Hi,

   I am currently working on my bachelor thesis on focused ultrasound. Now I take the example "defining transducer" with the "Transducer-class" as a basis, the problem is that I cannot change the radius. Now I wanted to ask how and whether I can rewrite the "Transducer class" in such a way that I can change the radius and simulate a curved transducer with the kwave transducer class.

   Best regards,
   Alex

   Posted 1 year ago #

4. Bradley Treeby
   

   Developer
   Joined: Mar '10
   Posts: 1,643

   Take a look at the new kWaveArray class and related examples in v1.4.

   Posted 1 year ago #

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