http://www.k-wave.org/forum/topic/mirror Support for the k-Wave MATLAB toolbox en-US Wed, 13 May 2026 01:49:56 +0000 http://bbpress.org/?v=1.0.2 q http://www.k-wave.org/forum/search.php http://www.k-wave.org/forum/topic/mirror#post-3940 Thu, 03 Oct 2013 20:21:58 +0000 Bradley Treeby 3940@http://www.k-wave.org/forum/ <p>Hi Juan,</p> <p>I tried to run a similar simulation and seemed to get sensible answers. Perhaps you can post the rest of your code and I'll see if I can spot anything immediately obvious?</p> <p>Brad. </p> http://www.k-wave.org/forum/topic/mirror#post-3936 Thu, 26 Sep 2013 12:41:54 +0000 Juan Aguirre Bueno 3936@http://www.k-wave.org/forum/ <p>I forgot to say that I assume that the source is the detector.... </p> http://www.k-wave.org/forum/topic/mirror#post-3935 Thu, 26 Sep 2013 10:01:46 +0000 Juan Aguirre Bueno 3935@http://www.k-wave.org/forum/ <p>Hi Bradley.</p> <p>Thanks for your fast answer. If I increase the thickness of the mirror, I still have the same effect. I compute the sensitivity as follows:</p> <p>sensor.mask=ones(Nx,Ny);<br /> ...<br /> sensor_data = kspaceFirstOrder2D(kgrid, medium, source, sensor,input_args{:});<br /> Datos=reshape(sensor_data,Nx,Ny,length(sensor_data(1,:)));<br /> sensfield=max(Datos,[],3);</p> <p>Thanks in advance.</p> <p>Juan </p> http://www.k-wave.org/forum/topic/mirror#post-3932 Tue, 24 Sep 2013 11:28:59 +0000 Bradley Treeby 3932@http://www.k-wave.org/forum/ <p>Hi Juan,</p> <p>What happens if you increase the thickness of the gold mirror in the simulation? The acoustic impedance mismatch between gold and water is very large, so physically you should still get the same result, but this might avoid any numerical issues with thin interfaces in the model. Also, how are you computing the sensitivity?</p> <p>Brad. </p> http://www.k-wave.org/forum/topic/mirror#post-3926 Thu, 19 Sep 2013 13:56:45 +0000 Juan Aguirre Bueno 3926@http://www.k-wave.org/forum/ <p>Hi all.</p> <p>First let me thank you once more for releasing such a handy and nice simulator.</p> <p>My question is the following:</p> <p>I am tryng to find the sensivity field of a cicularly focused tranducer. There is a thin mirror (gold) in front of the tranducer (well before its focal point). When I make the simulation I obtain that the maxium sensitivity values are located at the surface of the mirror... What am I doing wrong?</p> <p>Thanks in advance</p> <p>Juan </p>