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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">Hello Claire,<br>
<br>
When you synthesise the data, you also specify the radius (R) and inter-cylinder separation (S), via e.g.:<br>
<font color="FF0000">-cylinderrad 1.5E-6 -cylindersep 4E-6</font><br>
R should not be greater than S (and I suppose you've worked it's connection with volume fraction to be S=R sqrt(2pi/(f sqrt3))).
<br>
<br>
I hope this answers somehow your question.<br>
Uran<br>
PS: If you've not specified the radius/separation, and you want to know what the default values are, then I will try to find them --- but I hope it is clear that you can specify the geometry to your liking.<br>
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<div style="direction: ltr;" id="divRpF104147"><font color="#000000" face="Tahoma" size="2"><b>From:</b> camino-users-bounces@www.nitrc.org [camino-users-bounces@www.nitrc.org] on behalf of ClaireMarie Barnes [cmbarnes@live.co.uk]<br>
<b>Sent:</b> 07 October 2012 4:47 PM<br>
<b>To:</b> camino-users<br>
<b>Subject:</b> [Camino-users] voxel size<br>
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<div dir="ltr">Hi there,<br>
<br>
I was wondering if anyone could help me; I have been simulating data using camino however, I have been asked to use a model to calculate FA and compare with the values given by camino. As part of the equation I need to find the extracellular volume fraction.
I have used hexagonal cylinder packing and so am able to work out the the volume of the cylinders but I'm not sure of the dimensions used for a voxel by the -datasynth option in camino can anyone help<br>
<br>
Many thanks<br>
Claire :)<br>
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