<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii"> </head> <body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "> Hi Sonoko, <div><br> </div> <div>I think you should look at the volume ID of the hit. With a little investigating, you can figure out the volume ID of all your detectors. A few things to note:</div> <div><br> </div> <div>1) When you use a ring repeater, the volume ID increases in a counter-clockwise direction around the rotation axis. </div> <div><br> </div> <div>2) In a cubic array repeater, the volume ID increases first along x, then along y, then along z.</div> <div><br> </div> <div>Hope this helps!<br> <div apple-content-edited="true"><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; border-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "> <div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "> <div>Marc</div> <div><br> </div> <div><br> </div> <div><br> </div> <div>__________________________</div> <div><br> </div> <div>Marc Chamberland, MSc</div> PhD candidate<br> Department of Physics<br> Carleton University<br> Ottawa (ON)</div> </span></div> <br> <div> <div>On 2013-09-16, at 2:08 PM, Sonoko Nakano <<a href="mailto:snakano@sfu.ca">snakano@sfu.ca</a>> wrote:</div> <br class="Apple-interchange-newline"> <blockquote type="cite">Hello Gate users,<br> <br> I have defined a multiple-system detector with several SPECT heads.<br> Now I am looking at testSingles.dat file.<br> <br> Can some one tell me how to know which hit is from which SPECT head?<br> <br> In testSingles.dat, column 12, 13 and 14 are the hit's coordinate of (x,y,z).<br> But how can I know that these hist are from SPECT_head1, SPECT_head2, SPECT_head3, etc...???<br> <br> Thank you in advance for your help.<br> <br> Sonoko<br> _______________________________________________<br> Gate-users mailing list<br> <a href="mailto:Gate-users@lists.opengatecollaboration.org">Gate-users@lists.opengatecollaboration.org</a><br> http://lists.opengatecollaboration.org/mailman/listinfo/gate-users<br> <br> </blockquote> </div> <br> </div> </body> </html>