View source for Results for Random Spread of Energy and angle theta in the Lab frame

The commands used in GEMC to create a uniform spread of electron energy across the solid angle of the detector:

<pre> 
<option name="BEAM_P"   value="e-, 6.0*GeV, 30.0*deg, 10*deg"/>
<option name="SPREAD_P" value="5.5*GeV, 25*deg, 180*deg"/>
</pre>


Gives a uniform distribution across the solid angle components, theta and phi:


<center>[[File:GenThetaLab.png]][[File:DetcThetaLab.png]]</center>

<center>[[File:GenPhiLab.png]][[File:DetcPhiLab.png]]</center>


The electron energy shows an unequal distribution

<center>[[File:GenPhiVsE_0T.png]]</center>

<center>[[File:GenMomLab.png]]</center>