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Forum: Hits, Digitization and Pileup
Re: None Incorrect Hit position (Victor Meldrew)
Re: None Re: Incorrect Hit position (Victor Meldrew)
Re: None Re: Incorrect Hit position (Artem Zontikov)
Date: 10 Sep, 2016
From: Victor Meldrew <Victor Meldrew>

Thanks Artem.

Could you please comment on how I check that the step limited with "phot" is actually starting on the boundary.

The strange thing is that the same code on another computer works fine (by fine, I mean the first interaction position is exactly where the beam hits the detector).

My code for ProcessHits is as follow (the full version is available at this URL :

G4bool detASD::ProcessHits(G4Step* step, G4TouchableHistory*) {

	G4double edep = step->GetTotalEnergyDeposit();
	if (edep==0.) return true;

	CrystalHit* aHit = new CrystalHit();

	G4Track* aTrack   = step->GetTrack();
	G4int    parentID = aTrack->GetParentID();
	G4StepPoint  *oldStepPoint = step->GetPreStepPoint();
	G4StepPoint	 *newStepPoint = step->GetPostStepPoint();
	G4ThreeVector position = newStepPoint->GetPosition();
	G4double aTime = newStepPoint->GetGlobalTime();
	const G4VProcess* process = newStepPoint->GetProcessDefinedStep();
	G4String  interactiontype = ( (process != NULL) ? process->GetProcessName() : G4String() ) ;

	G4int inttype=-1;

	if (interactiontype=="eIoni") {inttype=0;} else {
		if (interactiontype=="phot") {inttype=1;} else {
			if (interactiontype=="msc") {inttype=2;} else {
				if (interactiontype=="eBrem") {inttype=3;} else {
					if (interactiontype=="Transportation") {inttype=4;} else {
						if (interactiontype=="compt") {inttype=5;}


	return true;

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1 None: Re: Incorrect Hit position   (Artem Zontikov - 11 Sep, 2016)
(_ None: [SOLVED] Re: Incorrect Hit position   (Victor Meldrew - 12 Sep, 2016)
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