<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> <HTML> <HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"> <META NAME="Generator" CONTENT="MS Exchange Server version 6.5.7652.24"> <TITLE>misalignment between a phantom and source</TITLE> </HEAD> <BODY>  Hi, I have simulated voxelized phantom/source.  I found that the source and phantom were misaligned about a couple of centimeters in x-y directions. The voxelized source was off from the center about 1.5 cm in each x and y direction.  Would it cause any dramatic changes in simulation results?  The dimension in x & y directions is  42 X 30 cm.   I think the phantom and source were properly aligned in z-direction. Thanks, Hyejoo <pre wrap> ===================================================================== Please note that this e-mail and any files transmitted with it may be privileged, confidential, and protected from disclosure under applicable law. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any reading, dissemination, distribution, copying, or other use of this communication or any of its attachments is strictly prohibited. If you have received this communication in error, please notify the sender immediately by replying to this message and deleting this message, any attachments, and all copies and backups from your computer. </pre></BODY> </HTML>