<html dir="ltr"> <head> <meta http-equiv="Content-Type" content="text/html; charset=Windows-1252"> <style>  </style><style id="owaParaStyle" type="text/css">P {margin-top:0;margin-bottom:0;}</style> </head> <body ocsi="0" fpstyle="1" vlink="#954F72" lang="EN-US" link="#0563C1"> <div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">Hi Charlie, Thanks very much for your advice. I will give your suggestion a try and see if it breaks up the results in the way that I require. Thanks again! Sophie <div style="font-family: Times New Roman; color: #000000; font-size: 16px"> <hr tabindex="-1"> <div style="direction: ltr;" id="divRpF410572">From: Charles A. Maitz [camaitz@gmail.com] Sent: 29 March 2016 14:04 To: 'Bissell, Sophie'; gate-users@lists.opengatecollaboration.org Subject: RE: [Gate-users] Multi-detector systems </div> <div></div> <div> <div class="WordSection1"> Hi Sophie, It might not be exactly what you’re looking for, but you could use one of the Actors, which are typically used for dosimetry purposes. I believe you could use a doseActor, attach one to each detector head, and collect NbOfHits information. That should work, but keep in mind that I have had my own challenges in trying to get these actors to work appropriately. Good luck! -charlie Charles A. Maitz, DVM, PhD, DACVR-RO Assistant Professor of Radiation Oncology Department of Veterinary Medicine & Surgery International Institute of Nano & Molecular Medicine University of Missouri – Columbia <a href="redir.aspx?REF=dsSVevnC92-ibX6_pd7ENVNACdXhqZs0SDxAIRPPn-kM3AaV1VfTCAFtYWlsdG86bWFpdHpjQG1pc3NvdXJpLmVkdQ.." target="_blank">maitzc@missouri.edu</a> <div> <div style="border:none; border-top:solid #E1E1E1 1.0pt; padding:3.0pt 0in 0in 0in"> From: gate-users-bounces@lists.opengatecollaboration.org [mailto:gate-users-bounces@lists.opengatecollaboration.org] On Behalf Of Bissell, Sophie Sent: Tuesday, March 29, 2016 7:34 AM To: gate-users@lists.opengatecollaboration.org Subject: [Gate-users] Multi-detector systems </div> </div> <div> Hi Gaters, I'm working with s detector system made up of 3 SPECThead detectors. I have successfully defined the detector geometry and am collecting hits in all three detectors. However I wondered if there was a way of defining a root output for each camera? The ASCII files define which camera each event occurred in along with the relevant pixel. The root output only tells me how many events occurred in each head and the pixel file simply gives the hits in each pixel (1-256) in all detector heads combined. Has anyone tried to do this before and can recommend how I might be able to get a root output defining the number of hits in each pixel for each head separately? Thanks Sophie </div> </div> </div> </div> </div> </body> </html>