<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:14px"><div id="yui_3_16_0_1_1424979162755_6732">Dear RTK users,<br></div><div class="qtdSeparateBR"><br><br></div><div class="yahoo_quoted" id="yui_3_16_0_1_1424979162755_6721" style="display: block;"><div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 14px;" id="yui_3_16_0_1_1424979162755_6720"><div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_1_1424979162755_6719"><div class="y_msg_container" id="yui_3_16_0_1_1424979162755_6725"><div id="yiv6859553979"><div id="yui_3_16_0_1_1424979162755_6724"><div style="color:#000;background-color:#fff;font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:14px;" id="yui_3_16_0_1_1424979162755_6723"><div id="yiv6859553979yui_3_16_0_1_1424895780864_6655" dir="ltr"><br></div><div id="yiv6859553979yui_3_16_0_1_1424895780864_6655" dir="ltr">I am using the RTK code to reconstruct the image for a bench-top micro-CT in a circular cone-beam geometry. It works well with FDK algo. Thanks RTK.</div><div id="yiv6859553979yui_3_16_0_1_1424895780864_6655" dir="ltr">I would like to change the current source trajectory from circular to helical. I was wondering is it possible to use the RTK for helical reconstruction only with some simple modification?</div><div id="yiv6859553979yui_3_16_0_1_1424895780864_6655" dir="ltr">I don't know well about reconstruction process and I don't know which type of modification is necessary to use RTK for a helical cone beam geometry. So, any suggestion and recommendation would be appreciated.<br></div><div id="yiv6859553979yui_3_16_0_1_1424895780864_6655" dir="ltr"><br></div><div id="yiv6859553979yui_3_16_0_1_1424895780864_6655" dir="ltr">Sincerely,</div><div id="yiv6859553979yui_3_16_0_1_1424895780864_6655" dir="ltr">Vahid</div><div id="yiv6859553979yui_3_16_0_1_1424895780864_6655" dir="ltr" class="yiv6859553979" style=""> </div></div></div></div><br><br></div> </div> </div> </div> </div></body></html>