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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">Hi everyone,
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<div>For those who have already acquired tomographic views with a simulated SPECT, this might concern you. </div>
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<div><span style="font-size: 10pt;">My SPECT machine simulated rotates around a point source
<b>located at the center.</b> The two gamma heads rotate around this reference point at a distance of 10cm around the center.
</span><span style="font-size: 10pt;"> </span></div>
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<div><span style="font-size: 10pt;">However, t</span><span style="font-size: 10pt;">he image.sin that I acquire (see attachment) shows a source moving up and down as if the source was not at the center of projection.</span></div>
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<div>I have gathered up two possibilities to this problem: </div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>- Either the reference point of rotation of the heads isn't located at the center of the World. </div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>- Or the projection output that I acquire messes something up. </div>
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<div>Any ideas anyone? <span style="font-size: 10pt;">My eternal sympathie for those who provide hints...</span></div>
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<div>Cheers, </div>
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<div>Vincent.</div>
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<b><span style="font-size:10pt; font-family:Calibri,sans-serif"><font color="#0000ff">Vincent Caillet</font></span></b></p>
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<span style="font-family:Calibri,sans-serif; font-size:10pt"><font color="#0000ff">Master 2 - Université Paris-Sud- Paris 11</font></span></p>
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<span style="font-family:Calibri,sans-serif; font-size:10pt"><font color="#0000ff">Postgraduate Alumni of The University of Sydney</font></span></p>
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IRSN</p>
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