SPIM ComptonScattering Lab - Revision history

Foretony: /* Write up results */

2019-03-08T21:22:24Z

Write up results

2019-03-01T22:46:13Z

Write up results

2019-03-01T20:37:39Z

Create ROOT histogram

2019-03-01T20:25:49Z

A C-program is given below which will output the Electron Kinetic energy and the differential X-sect

2015-10-28T02:14:40Z

2015-10-28T02:11:33Z

Write up results

2013-10-31T23:26:41Z

now change the stepping verbose so it outputs compton data

2013-10-31T23:00:54Z

If Using G4 version earlier than 4.9.5 Add G4LowEnergyCompton to your physicslist

2013-10-31T23:00:28Z

If Using G4 version earlier than 4.9.5 Add G4LowEnergyCompton to your physicslist

2013-10-31T23:00:13Z

Add G4EnergyCompton to your physics list

@@ Line 287: / Line 287: @@
-  root [1] TTree *Sim=Photo;
+  root [1] TTree *Sim=Compton;
   root [2] TH1F *G4=new TH1F("G4","G4",250,-0.5,249.5);
   root [3] Sim->Draw("ke*1000000 >> G4");

@@ Line 296: / Line 296: @@
   root [8] NG4->Add(G4,1.24e-4);
   root [9] NG4->Draw();
-  root [10] Th->Draw("same");
+  root [10] Th->Draw("sames");
 :<math>L = \frac{i_{scattered}}{\sigma} \sim i_{scattered} \rho_{target} l_{target}</math>

@@ Line 121: / Line 121: @@
 you then execute the above function within root via:
-  root DiffEXsect2root.C
+  .X DiffEXsect2root.C
 assuming you called the date file DiffEXsect.dat and the above

@@ Line 66: / Line 66: @@
          $(CC)  $(CFLAGS) -c DiffEKleinNishina.c
-Sometime if you copy and paste from the browser you get control characters which cause the error message
+Sometimes, if you copy and paste from the browser you get control characters which cause the error message
 " *** missing separator.".  Just delete everything in front of the $(CC) line and insert our own tab character.

← Older revision		Revision as of 02:14, 28 October 2015
Line 309:		Line 309:

	[[Image:SPIM_8keVComptonOnArgon.gif]]		[[Image:SPIM_8keVComptonOnArgon.gif]]
		+
		+	[[HomeWork_Simulations_of_Particle_Interactions_with_Matter#Homework_8]]

@@ Line 236: / Line 236: @@
 = Write up results =
-Write up the results in report similar to the photoelectric  effect homework.  The grading scheme will be the same.
+Write up the results in report similar to the photoelectric  effect homework.  The grading scheme will be
 NOTE: The Kinetic Energy histogram from GEANT is in units of

@@ Line 181: / Line 181: @@
             << PhotonEloss << "    "
             << InitialPhotonEnergy << "    "
             << fTrack->GetPosition().y()<< "    "
             << fTrack->GetPosition().z()<< "    "

← Older revision		Revision as of 23:00, 31 October 2013
Line 218:		Line 218:


−	=== If Using G4 version ~~earlier~~ than 4.9.5 Add G4LowEnergyCompton to your physicslist===	+	=== If Using G4 version numerically smaller than 4.9.5 Add G4LowEnergyCompton to your physicslist===

	include the header file below if LowEnergy isn't defined		include the header file below if LowEnergy isn't defined

@@ Line 229: / Line 229: @@
 Add this process under the gamma particle (or just comment out the other ones):<br>
- if (particleName == "gamma") {
+   if (particleName == "gamma") {
        // gamma
-      //      ph->RegisterProcess(new G4PhotoElectricEffect, particle);
+          pmanager->AddDiscreteProcess(new G4ComptonScattering);
-      ph->RegisterProcess(new G4ComptonScattering,   particle);
 = Write up results =