* about the suitability of this software for any purpose. It is *
* provided "as is" without express or implied warranty. *
**************************************************************************/
-/*
-$Log$
-Revision 1.2 2000/06/15 07:58:48 morsch
-Code from MUON-dev joined
-Revision 1.1.2.5 2000/06/09 21:27:01 morsch
-Most coding rule violations corrected.
+/* $Id$ */
-Revision 1.1.2.4 2000/05/05 11:34:12 morsch
-Log inside comments.
+// -----------------------
+// Class AliMUONChamber
+// -----------------------
+// MUON tracking chamber class
+// now only providing DisIntegration function
-Revision 1.1.2.3 2000/05/05 10:09:52 morsch
-Log messages included
-*/
+// --- ROOT includes ---
+#include <TRandom.h>
+#include <TMath.h>
+#include "AliRun.h"
+
+// --- MUON includes ---
+#include "AliMUON.h"
#include "AliMUONChamber.h"
#include "AliMUONSegmentation.h"
-#include "AliMUONResponse.h"
+#include "AliMUONHit.h"
+#include "AliLog.h"
-#include "TMath.h"
+/// \cond CLASSIMP
ClassImp(AliMUONChamber)
-
- AliMUONChamber::AliMUONChamber()
+/// \endcond
+
+//_______________________________________________________
+AliMUONChamber::AliMUONChamber()
+ : TObject(),
+ fId(0),
+ fCurrentCorrel(1), // to avoid mistakes if ChargeCorrelInit is not called
+ fResponse(0),
+ fMUON(0)
{
- fSegmentation = new TObjArray(2);
- (*fSegmentation)[0] = 0;
- (*fSegmentation)[1] = 0;
- fResponse=0;
- fnsec=1;
- fReconstruction=0;
-}
+/// Default constructor
-AliMUONChamber::~AliMUONChamber()
-{
- if (fSegmentation) delete fSegmentation;
+ AliDebug(1, Form("default (empty) ctor this = %p", this));
}
-AliMUONChamber::AliMUONChamber(const AliMUONChamber& rChamber)
+//_______________________________________________________
+AliMUONChamber::AliMUONChamber(Int_t id)
+ : TObject(),
+ fId(id),
+ fCurrentCorrel(1), // to avoid mistakes if ChargeCorrelInit is not called
+ fResponse(0),
+ fMUON(0)
{
-// Dummy copy constructor
- ;
-}
+/// Standard constructor
+ // muon
+ fMUON = (AliMUON*)gAlice->GetModule("MUON");
+ if (!fMUON) {
+ AliFatal("MUON detector not defined.");
+ return;
+ }
-void AliMUONChamber::Init()
-{
-// Initalisation ..
-//
-// ... for chamber segmentation
- if ((*fSegmentation)[0])
- ((AliMUONSegmentation *) (*fSegmentation)[0])->Init(this);
-
- if (fnsec==2) {
- if ((*fSegmentation)[1])
- ((AliMUONSegmentation *) (*fSegmentation)[1])->Init(this);
- }
+ AliDebug(1, Form("ctor this = %p", this) );
}
-Int_t AliMUONChamber::SigGenCond(Float_t x, Float_t y, Float_t z)
+//_______________________________________________________
+AliMUONChamber::~AliMUONChamber()
{
-// Ask segmentation if signal should be generated
- if (fnsec==1) {
- return ((AliMUONSegmentation*) (*fSegmentation)[0])
- ->SigGenCond(x, y, z) ;
- } else {
- return (((AliMUONSegmentation*) (*fSegmentation)[0])
- ->SigGenCond(x, y, z)) ||
- (((AliMUONSegmentation*) (*fSegmentation)[1])
- ->SigGenCond(x, y, z)) ;
- }
-}
+/// Destructor
+ AliDebug(1, Form("dtor this = %p", this));
+}
-void AliMUONChamber::SigGenInit(Float_t x, Float_t y, Float_t z)
+//_____________________________________________________
+void AliMUONChamber::ChargeCorrelationInit()
{
-//
-// Initialisation of segmentation for hit
-//
- if (fnsec==1) {
- ((AliMUONSegmentation*) (*fSegmentation)[0])->SigGenInit(x, y, z) ;
- } else {
- ((AliMUONSegmentation*) (*fSegmentation)[0])->SigGenInit(x, y, z) ;
- ((AliMUONSegmentation*) (*fSegmentation)[1])->SigGenInit(x, y, z) ;
- }
+/// Initialisation of charge correlation for current hit
+/// the value is stored, and then used by Disintegration
+
+ // exponential is here to avoid eventual problems in 0
+ // factor 2 because chargecorrel is q1/q2 and not q1/qtrue
+ fCurrentCorrel = TMath::Exp(gRandom->Gaus(0,fResponse->ChargeCorrel()/2));
}
-void AliMUONChamber::DisIntegration(Float_t eloss, Float_t tof,
- Float_t xhit, Float_t yhit, Float_t zhit,
+//_______________________________________________________
+void AliMUONChamber::DisIntegration(AliMUONHit *hit,
Int_t& nnew,Float_t newclust[6][500])
{
-//
-// Generates pad hits (simulated cluster)
-// using the segmentation and the response model
- Float_t dx, dy;
- //
- // Width of the integration area
- //
- dx=fResponse->SigmaIntegration()*fResponse->ChargeSpreadX();
- dy=fResponse->SigmaIntegration()*fResponse->ChargeSpreadY();
- //
- // Get pulse height from energy loss
- Float_t qtot = fResponse->IntPH(eloss);
- //
- // Loop Over Pads
+/// Generates pad hits (simulated cluster)
+/// using the segmentation and the response model
+
+ Float_t dx, dy;
+
+ Float_t xhit = hit->X();
+ Float_t yhit = hit->Y();
+ Float_t zhit = hit->Z();
+ Int_t id = hit->DetElemId();
+ Float_t eloss = hit->Eloss();
+
+ //
+ // Width of the integration area
+ //
+ dx=fResponse->SigmaIntegration()*fResponse->ChargeSpreadX();
+ dy=fResponse->SigmaIntegration()*fResponse->ChargeSpreadY();
+ //
+ // Get pulse height from energy loss
+ Float_t qtot = fResponse->IntPH(eloss);
+ //
+ // Loop Over Pads
- Float_t qcheck=0, qp;
- nnew=0;
- for (Int_t i=1; i<=fnsec; i++) {
- qcheck=0;
- AliMUONSegmentation * segmentation=
- (AliMUONSegmentation *) (*fSegmentation)[i-1];
- for (segmentation->FirstPad(xhit, yhit, zhit, dx, dy);
- segmentation->MorePads();
- segmentation->NextPad())
- {
- qp=fResponse->IntXY(segmentation);
- qp=TMath::Abs(qp);
-
-//
-//
- if (qp > 1.e-4) {
- qcheck+=qp;
+ Float_t qp;
+ nnew=0;
+
+ // Cathode plane loop
+ for (Int_t i = 1; i <= 2; i++) {
+ Float_t qcath = qtot * (i==1? fCurrentCorrel : 1/fCurrentCorrel);
+
+ AliMUONGeometrySegmentation* segmentation=
+ fMUON->GetSegmentation()->GetModuleSegmentationByDEId(id, i-1);
+
+ for (segmentation->FirstPad(id, xhit, yhit, zhit, dx, dy);
+ segmentation->MorePads(id);
+ segmentation->NextPad(id))
+ {
+ qp=fResponse->IntXY(id, segmentation);
+ qp=TMath::Abs(qp);
+ //
+ //
+ if (qp > 1.e-4)
+ {
+ if (nnew >= 500) // Perform a bounds check on nnew since it is assumed
+ // newclust only contains 500 elements.
+ {
+ AliError("Limit of 500 pad responses reached.");
+ return;
+ };
//
// --- store signal information
- newclust[0][nnew]=qtot; // total charge
- newclust[1][nnew]=segmentation->Ix(); // ix-position of pad
- newclust[2][nnew]=segmentation->Iy(); // iy-position of pad
- newclust[3][nnew]=qp * qtot; // charge on pad
- newclust[4][nnew]=segmentation->ISector(); // sector id
- newclust[5][nnew]=(Float_t) i; // counter
- nnew++;
- }
- } // Pad loop
- } // Cathode plane loop
-}
-
-
-
-void AliMUONChamber::InitGeo(Float_t zpos)
-{
-// sensitive gas gap
- fdGas= 0.5;
-// 3% radiation length of aluminum (X0=8.9 cm)
- fdAlu= 3.0/100*8.9;
-}
-
-
-AliMUONChamber & AliMUONChamber::operator =(const AliMUONChamber& rhs)
-{
-// Dummy assignment operator
- return *this;
+ newclust[0][nnew]=qcath; // total charge
+ newclust[1][nnew]=segmentation->Ix(); // ix-position of pad
+ newclust[2][nnew]=segmentation->Iy(); // iy-position of pad
+ newclust[3][nnew]=qp * qcath; // charge on pad
+ newclust[4][nnew]=segmentation->ISector(); // sector id
+ newclust[5][nnew]=(Float_t) i; // counter
+ nnew++;
+
+ }
+ } // Pad loop
+ } // Cathode plane loop
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff