Editing Creating the Simulation Environment (section)

===Different Types of Volumes===

Inside the <span style="color:blue">'''envelope'''</span> you may place many different types of <span style="color:green">'''volumes'''</span> to interact with. These <span style="color:green">'''volumes'''</span> act as detectors or materials inside of our Lab in Luter 345.  Similar to the <span style="color:red">'''world'''</span> and the <span style="color:blue">'''envelope'''</span>,  each <span style="color:green">'''volume'''</span> is created by describing its shape and its physical characteristics, but the <span style="color:green">'''volumes'''</span> also inherit the property of ''scoring''. Scoring allows various physical quantities to be tracked while a particle is interacting with the <span style="color:green">'''volume'''</span>.

*Below is an example on how to generate a <span style="color:green">'''volume'''</span> in the ''Detector Construction Class'':

 //MATERIAL & POSITION
 G4Material* shape1_mat = nist->FindOrBuildMaterial(<"MATERIAL">);
        G4ThreeVector pos1 = G4ThreeVector(<xPOS>,<yPOS>,<zPOS>);
        // SHAPE 1 CREATION      
        G4Box* solidShape1 =
                new G4Box("Bottom Scintillator",          //its name
                        <Variables->getScintX()*0.5*cm>,  //its x length
                        <Variables->getScintY()*0.5*cm>,  //its y length
                        <Variables->getScintZ()*0.5*cm>); //its z length
        //LOGICAL VOLUME
        G4LogicalVolume* logicShape1 =
                new G4LogicalVolume(solidShape1,        //its solid
                        shape1_mat,                     //its material
                        "Bottom Scintillator");         //its name
                new G4PVPlacement(0,                    //no rotation
                        pos1,                           //at position
                        logicShape1,                    //its logical volume
                        "Bottom Scintillator",          //its name
                        logicEnv,                       //its mother  volume
                        false,                          //no boolean operation
                        0,                              //copy number
                        checkOverlaps);                 //overlaps checking
        // SHAPE 1 SCORING VOLUME
        fScoringVolume = logicShape1;