diff --git a/data/dataDSR4/analysis_07_1.root b/data/dataDSR4/analysis_07_1.root
index ef57558475da2aaf6abd3097d218accac8e192d6..407c22db450ee7334e1f8a5a23d80e83cb095058 100644
Binary files a/data/dataDSR4/analysis_07_1.root and b/data/dataDSR4/analysis_07_1.root differ
diff --git a/dataClasses/AEvent.cpp b/dataClasses/AEvent.cpp
index 565fb94a6363b0043f63e5b192d6b23db1cf227f..cf07feeb93ac5ba94d32dcf287c15cde7ee4fbb3 100644
--- a/dataClasses/AEvent.cpp
+++ b/dataClasses/AEvent.cpp
@@ -55,9 +55,9 @@ void AEvent::ProcessEvent() {
 		fTime[j] = time[j];
 	}
 
-	const Double_t zeroLevel = FindZeroLevel();
+	fZeroLevel = FindZeroLevel();
 	for(Int_t j = 0; j < fNPoints; j++) {
-		fAmpPos[j] = fAmpPos[j] - zeroLevel;
+		fAmpPos[j] = fAmpPos[j] - fZeroLevel;
 	}
 
 	Double_t maxAmp = 0.;
@@ -76,6 +76,7 @@ void AEvent::ProcessEvent() {
 	SetGraphs();
 
 	SetCFD();
+	SetChargeCFD();
 
 	return;
 
@@ -91,7 +92,9 @@ void AEvent::Reset() {
 
 	fAmpMax = 0.;
 	fTimeAmpMax = 0.;
-	fCFD = 0.;
+	fTimeCFD = 0.;
+	fZeroLevel = 0.;
+	fCharge = 0.;
 }
 
 void AEvent::SetInputEvent(RawEvent** event) {
@@ -166,7 +169,7 @@ void AEvent::SetCFD() {
 	for(Int_t j = imin; j < imax; j++) {   
 		if(abs(fAmpCFD[j]) < level) {
 			level = abs(fAmpCFD[j]);
-			fCFD = fTime[j];
+			fTimeCFD = fTime[j];
 		}
 	}
 }
@@ -190,8 +193,28 @@ Double_t AEvent::FindZeroLevel(Int_t pmin, Int_t pmax) {
 	return correction;
 }
 
+void AEvent::SetChargeCFD(Int_t tmin, Int_t tmax) {
+	
+	Double_t integral = 0.;				//voltage
+	Double_t time_sig = 0;				//approximate signal duration in seconds
+	Double_t res = 50.; 				//resistance 50 Om
+	time_sig = (double)(tmin + tmax)*(1e-9);
+
+	for(Int_t i = 0; i < fNPoints; i++) {
+		if( fTime[i] > (fTimeCFD - tmin) && fTime[i] < (fTimeCFD + tmax) ) {
+			integral = integral + fAmpPos[i];
+		}
+	}
+	fCharge = integral*time_sig/res;
+//	cout<<fCharge<<endl;
+//	printf("\nIntegral is %f , charge is %lf \n", integral, fCharge);
+
+	return;
+
+}
+
 Double_t AEvent::GetfCFD() {
-		return fCFD;
+		return fTimeCFD;
 }
 
 Double_t AEvent::GetOnefTime(Int_t i) {
diff --git a/dataClasses/AEvent.h b/dataClasses/AEvent.h
index b3aff58e7e5e4059b7c318d76c529e0b57f1f2b4..6545dde38e6d05c4bb7870b5e2d51e2e108d5fa6 100644
--- a/dataClasses/AEvent.h
+++ b/dataClasses/AEvent.h
@@ -38,9 +38,11 @@ private:
 
 	Double_t fAmpMax;
 	Double_t fTimeAmpMax;
+	Double_t fZeroLevel;
 
 	TArrayD fAmpCFD;	//array for CFD amplitudes (attenuated, inversed and delayed)
-	Double_t fCFD;			//zero-crossing time
+	Double_t fTimeCFD;			//zero-crossing time
+	Double_t fCharge;	//charge of the signal in Coulomb
 
 	TGraph *fGraphSignal;
 	TGraph *fGraphCFD;
@@ -88,6 +90,11 @@ public:
 	//for zero level correction. one parameter fit between pmin and pmax
 	//returns fit parameter i.e. number on which amplitude should be corrected
 
+	void SetChargeCFD(Int_t tmin = 3, Int_t tmax = 17);
+	//calculates charge of the signal (i.e. its integral 
+	//in range of (tmin,tmax) in ns)
+	//CFD time is taken as a start point
+
 private:
 	void Init();
 	void SetGraphs();
diff --git a/macros/analyse.C b/macros/analyse.C
index cfab8c1a421cf0644293577c6d91564107619724..3601f73a2b4d2e41b886c1ccc4637ea7e37f47fb 100644
--- a/macros/analyse.C
+++ b/macros/analyse.C
@@ -2,7 +2,7 @@ void analyse()
 {
 	gSystem->Load("../libData.so");
 
-	TFile *f = new TFile("../data/rawDataDSR4/NeuRad_test_07_3.root");
+	TFile *f = new TFile("../data/rawDataDSR4/NeuRad_test_07_1.root");
 	TTree *tr = (TTree*)f->Get("rtree");
 
 	const Int_t noBranches = 4;
@@ -19,7 +19,7 @@ void analyse()
 
 //	tr->SetMakeClass(1);
 
-	TFile *fw = new TFile("../data/dataDSR4/analysis_07_3.root", "RECREATE");	//create .root file with somehow analyzed data
+	TFile *fw = new TFile("../data/dataDSR4/analysis_07_1.root", "RECREATE");	//create .root file with somehow analyzed data
 	TTree *tw = new TTree("atree", "title of drs4 analysis tree");	//create analysis tree atree in it
 
 	AEvent *wevent[noBranches];	// pointer to the array (of AEvent class) in which analyzed data for each channel will be put
@@ -37,19 +37,17 @@ void analyse()
 
 	for(Long64_t i = 0; i < nentries; i++) {
 		tr->GetEntry(i);
-		if ( !(tr->GetEntry(i)%100) ) {
-			printf("Found event #%d\n", tr->GetEntry(i));
-		}
 
 		for (Int_t j = 0; j<noBranches; j++) {
 			wevent[j]->Reset();
 			wevent[j]->ProcessEvent();	//here all the analysis is going on so far
 		}
 
+		if ( !(i%100) ) { printf("Found event #%d\n", i); }
 		tw->Fill();
 	}
-
 //----end of event loop
+	printf("%d events are processed\n", nentries);
 
 	tw->Write();
 	fw->Close();