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<p class="MsoNormal">Hi.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Is it possible to use the ring repeater command more than once?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I have defined a 2-head SPECT system where the heads are separated by an angle of 76 degrees. To improve the efficiency of my system, I thought it sensible to place a second instance of both heads 180 further around the ring.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The 2 head system is generated with the ring repeat – I have removed some lines but it is essentially:<o:p></o:p></p>
<p class="MsoNormal">/gate/SPECThead/repeaters/insert ring<o:p></o:p></p>
<p class="MsoNormal">/gate/SPECThead/ring/setAngularSpan 76 deg<o:p></o:p></p>
<p class="MsoNormal">/gate/SPECThead/ring/setRepeatNumber 2<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Is it possible to then do a second repeat of this geometry somehow? My efforts have failed…ideally the above could be repeated with something like:<o:p></o:p></p>
<p class="MsoNormal">/gate/SPECThead/repeaters/insert ring<o:p></o:p></p>
<p class="MsoNormal">/gate/SPECThead/ring/setAngularSpan 180 deg<o:p></o:p></p>
<p class="MsoNormal">/gate/SPECThead/ring/setRepeatNumber 2<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">To produce a total of 2 sets of 2 heads (4 heads). I see from the examples it is possible to combine ring and linear repeaters. Can ring repeaters be used in a way which suits my purpose?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Cheers<o:p></o:p></p>
<p class="MsoNormal">Steve<span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:gray;mso-fareast-language:EN-NZ"><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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