<div dir="ltr">Well, that depends on how you want to approach this - what information do you have available? What was typically done for coils previously was to construct a dipole approximation using knowledge of the winding geometry. This is what you find in the ccd files, the 3 first columns indicate the dipole position in meters (in the coil coordinate system - coil center at 0,0,0 and z towards the head) and the last 3 columns indicate the dipole moments in x,y and z directions respectively (for a flat coil this would typically imply that only the third is different from zero).<div>If you have detailed and somewhat dense measurements of the magnetic field you can look into:</div><div><a href="https://pubmed.ncbi.nlm.nih.gov/26297386/">https://pubmed.ncbi.nlm.nih.gov/26297386/</a></div><div>and the later dipole based approach:</div><div><a href="https://arxiv.org/ftp/arxiv/papers/2112/2112.14548.pdf">https://arxiv.org/ftp/arxiv/papers/2112/2112.14548.pdf</a></div><div>Best,</div><div>Kristoffer </div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, 25 Mar 2022 at 20:29, mostafa abd elsamea <<a href="mailto:autofixegypt@gmail.com">autofixegypt@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="rtl"><div dir="ltr">hello ,</div><div dir="ltr">im trying to design a tms not in simnibs library,</div><div dir="ltr">what is the tool should i use</div><div dir="ltr">the second question is what is column name in the tms ccd file comes with simnibs</div><div dir="ltr">thanks alot have a good day</div></div>
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