<html>
<head>
<style><!--
.hmmessage P
{
margin:0px;
padding:0px
}
body.hmmessage
{
font-size: 12pt;
font-family:Calibri
}
--></style></head>
<body class='hmmessage'><div dir='ltr'><div><br></div><div><span style="color: rgb(68, 68, 68); font-size: 15px; line-height: 21.2999992370605px; background-color: rgb(255, 255, 255);">Hi again, sorry for my insistence. </span><span style="color: rgb(68, 68, 68); font-size: 15px; line-height: 21.2999992370605px; background-color: rgb(255, 255, 255);">I need a 22-Na source emitting positron because I want to study positrons annihilation range.</span><div style="line-height: 21.2999992370605px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);">How can I do that?</div></div><div style="line-height: 21.2999992370605px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br></div><div style="line-height: 21.2999992370605px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);">A kindly collaborator proposses me this:</div><div style="line-height: 21.2999992370605px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br></div><div style="line-height: 21.2999992370605px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><pre style="line-height: 21.2999992370605px; white-space: normal; font-family: 'Segoe UI', 'Segoe UI Web Regular', 'Segoe UI Symbol', 'Helvetica Neue', 'BBAlpha Sans', 'S60 Sans', Arial, sans-serif;">/gate/source/addSource na22<br style="line-height: 21.2999992370605px;">/gate/source/na22/setActivity 10000 Bq<br style="line-height: 21.2999992370605px;">/gate/source/na22/gps/particle ion<br style="line-height: 21.2999992370605px;">/gate/source/na22/gps/ion 11 22 0 0<br style="line-height: 21.2999992370605px;">/gate/source/na22/gps/monoenergy 0. keV<br style="line-height: 21.2999992370605px;">/gate/source/na22/gps/type Plane<br style="line-height: 21.2999992370605px;">/gate/source/na22/gps/shape Circle<br style="line-height: 21.2999992370605px;">/gate/source/na22/gps/radius 0.5 mm<br style="line-height: 21.2999992370605px;">/gate/source/na22/gps/angtype iso<br style="line-height: 21.2999992370605px;">/gate/source/na22/gps/centre 0. 0. 0. cm<br style="line-height: 21.2999992370605px;"><br style="line-height: 21.2999992370605px;">In your physics list you have to enable radioactive decay:<br style="line-height: 21.2999992370605px;">/gate/physics/addProcess Decay<br style="line-height: 21.2999992370605px;">/gate/physics/addProcess RadioactiveDecay GenericIon<br style="line-height: 21.2999992370605px;"></pre><pre style="line-height: 21.2999992370605px; white-space: normal; font-family: 'Segoe UI', 'Segoe UI Web Regular', 'Segoe UI Symbol', 'Helvetica Neue', 'BBAlpha Sans', 'S60 Sans', Arial, sans-serif;"><br></pre><pre style="line-height: 21.2999992370605px; white-space: normal; font-family: 'Segoe UI', 'Segoe UI Web Regular', 'Segoe UI Symbol', 'Helvetica Neue', 'BBAlpha Sans', 'S60 Sans', Arial, sans-serif;">But it isnīt emitting positrons...</pre><pre style="line-height: 21.2999992370605px; white-space: normal; font-family: 'Segoe UI', 'Segoe UI Web Regular', 'Segoe UI Symbol', 'Helvetica Neue', 'BBAlpha Sans', 'S60 Sans', Arial, sans-serif;"><br></pre><pre style="line-height: 21.2999992370605px; white-space: normal; font-family: 'Segoe UI', 'Segoe UI Web Regular', 'Segoe UI Symbol', 'Helvetica Neue', 'BBAlpha Sans', 'S60 Sans', Arial, sans-serif;">Thank you all.</pre></div><div style="line-height: 21.2999992370605px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br></div> </div></body>
</html>