<div dir="ltr">Hi Phy phy, <div><br></div><div>Before drawing the axial sensitivity of a PET system, you need to know when the axial sensitivity is calculated. There may be various methods to calculate that, but here I am only speaking of the method I used in my recent NEMA sensitivity measurement. Per NEMA description for sensitivity measurement, the dose is very low and you may think of there all collection lors are trues (you definitely can do processing to remove randoms and scatters, but they don't count for a lot ). Then I used single-slice rebinning method to determine the location of each lor and assign it to its corresponding axial slice. I used python to conduct this analysis and if you also use it then numpy.histogram is the function that you need to get your data ready before plotting. </div><div><br></div><div>Good luck,</div><div>Albert</div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, Jul 19, 2020 at 4:26 AM phy phy <<a href="mailto:nuclear99physics@gmail.com">nuclear99physics@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Hi Gate users<br>I am a new user of Gate.<br>What phantom and source should be used to draw the axial sensitivity diagram?<br>I simulated a clinical PET and calculated the sensitivity in the center using five aluminum coatings using the NEMA nu2 2018.<br><div> Now how do I draw the axial sensitivity diagram?</div><div><br></div><div>Please guide me. <br></div></div>
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