diff --git a/dataClasses/AEvent.cpp b/dataClasses/AEvent.cpp
index 71bf043bc278cf9a20e891657c2320989dceb2a9..2d97aa58938625f5ab45379335815384484af331 100644
--- a/dataClasses/AEvent.cpp
+++ b/dataClasses/AEvent.cpp
@@ -64,6 +64,7 @@ void AEvent::ProcessEvent() {
 
 	SetGraphs();
 	FindFrontProperties();
+	SetGraphs();
 	SetCFD();
 	SetChargeCFD();
 
@@ -80,6 +81,7 @@ void AEvent::Reset() {
 	}
 
 	fEdgeSlope=0.;
+	fEdgeSlope=-100.;
 	fTime10=0.;
 	fTime90=0.;
 	fAmpMax = 0.;
@@ -176,7 +178,7 @@ void AEvent::FindFrontProperties() {
 	const Double_t maxHeight = 0.9;
 
 	const Double_t timeStep = 0.05;	//in ns
-	Double_t time = fTimeAmpMax;			//in ns
+	Double_t time = 0;			//in ns
 //	Int_t NumM = 0.;
 
 	if (!fGraphSignal) {
@@ -186,26 +188,29 @@ void AEvent::FindFrontProperties() {
 
 	//TODO search of minimum should be done from the lower edge on the time axis
 //	cout << "Event!!!!!!!!!!!!!" << endl;
-	while( fGraphSignal->Eval(time) >= minHeight*fAmpMax && time>0) {
+//	while( fGraphSignal->Eval(time) >= minHeight*fAmpMax && time>0) {
+	while (fGraphSignal->Eval(time) <= maxHeight*fAmpMax && time<200.) {
 //		cout << fAmpMax << "\t" << fGraphSignal->Eval(time) << "\t" << fTimeAmpMax << "\t" << time << endl;
-		fTime10 = time;
-		time = time - timeStep;
-	}
-//	cout << "Found time10 " << fTime10 << endl;
-
-	time = fTimeAmpMax;
-	while( fGraphSignal->Eval(time) >= maxHeight*fAmpMax && time>0) {
 		fTime90 = time;
+		time = time + timeStep;
+	};
+
+	time = fTime90;
+	while( fGraphSignal->Eval(time) >= minHeight*fAmpMax && time>0) {
+		fTime10 = time;
 		time = time - timeStep;
 	}
-//	cout << "Found time90 " << fTime90 << endl;
+//	cout << "Found time10 " << fTime10 << "\t" << fGraphSignal->Eval(fTime10) << "\t" << minHeight*fAmpMax << "\t" << fAmpMax << endl;
+//	cout << "Found time10 " << fTime10 << "\t" << TMath::Abs(fGraphSignal->Eval(fTime10) - minHeight*fAmpMax) / fAmpMax * 100 << endl;
+//	cout << "Found time90 " << fTime90 << "\t" << GetT_90() << endl;
 
 //	cout<< "Time90 - time10 "<< fTime90 - fTime10 << endl;
 //	if(fTime90 - fTime10 == 0.25 ) { cout<< "Zero !!"<<endl; }
 
 	TF1 *fit1 = new TF1("fit1","[1]*x+[0]");	//function for one parameter fitting in the range of pmin-pmax
 	fit1->SetRange(fTime10,fTime90);
-	fGraphSignal->Fit(fit1,"RQ","goff");
+//	fGraphSignal->Fit(fit1,"RQ","goff");
+	fGraphSignal->Fit(fit1,"RQN","goff");
 	fEdgeSlope = fit1->GetParameter(1);
 
 	delete fit1;
diff --git a/macros/histCorr.C b/macros/histCorr.C
index 6c66d3306338cb00d395a5e88bc6eef852cca48f..27fd1e8455738f3b0db237ee84c141406d83ef01 100644
--- a/macros/histCorr.C
+++ b/macros/histCorr.C
@@ -93,9 +93,10 @@ void histCorr(const Bool_t can1 = 1, const Bool_t can2 = 1, const Bool_t can3 =
 
 		TH1F *h7 = new TH1F("h7", "Time difference between 90 and 10 percent of the rising edge ampl", 100, 0, 5);
 		TH2F *h8 = new TH2F("h8", "Time difference between 90 and 10 percent vs integral", 100, 0., 5., 100, 0., 3e-9);
+		TH2F *h9 = new TH2F("h9", "Time difference between 90 and 10: ch0 vs ch1", 100, 0., 5., 100, 0., 5.);
 
 		c3->cd(1);
-		t->Draw("Ach0.fTime90 - Ach0.fTime10 >> h7","(Ach0.fTime90-Ach0.fTime10)>0","col");
+		t->Draw("Ach0.fTime90 - Ach0.fTime10 >> h7","(Ach0.fTime90-Ach0.fTime10)>=0","col");
 //		t->Draw("Ach0.fTime90 - Ach0.fTime10 >> h7","","col");
 		//x
 		h7->GetXaxis()->SetTitle("\\Delta \\tau_{0}^{(rise)} [ns]");
@@ -112,6 +113,14 @@ void histCorr(const Bool_t can1 = 1, const Bool_t can2 = 1, const Bool_t can3 =
 		h8->GetYaxis()->CenterTitle();
 		c3->Update();
 	
+		c3->cd(2);
+		t->Draw("  (Ach1.fTime90 - Ach1.fTime10) : (Ach0.fTime90 - Ach0.fTime10) >> h9","(Ach0.fTime90 - Ach0.fTime10)>0","col");
+		//x
+		h9->GetXaxis()->SetTitle("\\Delta \\tau_{0}^{(rise)} [ns]");
+		h9->GetXaxis()->CenterTitle();
+		//y
+		h9->GetYaxis()->SetTitle("\\Delta \\tau_{1}^{(rise)} [ns]");
+		h9->GetYaxis()->CenterTitle();
 		c3->Update();
 	}
 
diff --git a/macros/testShowGraphs.cxx b/macros/testShowGraphs.cxx
index 270b6e7e927102fcc2990781d4222a50ee1532dc..c0ca2a46bf69539c60a689d1339334ca9e20610f 100644
--- a/macros/testShowGraphs.cxx
+++ b/macros/testShowGraphs.cxx
@@ -6,7 +6,8 @@ void testShowGraphs()
 	const Long64_t kFirstEvent = 50;
 
 //	TFile fr("../data/dataDSR4/analysis_07_1.root");
-	TFile fr("../data/dataDSR4/analysis_07_8.root");
+//	TFile fr("../data/dataDSR4/analysis_07_8.root");
+	TFile fr("../data/dataDSR4/analysis_08_2.root");
 //	TFile fr("../data/dataTektronix/analysisExp7.root");
 	TTree *tr = (TTree*)fr.Get("atree");
 
@@ -14,6 +15,8 @@ void testShowGraphs()
 	cout << tr->SetBranchAddress("Ach0.",&revent) << endl;
 
 	TGraph *gr[10];
+	Double_t t10[10];
+	Double_t t90[10];
 
 //	cout << "warning" << endl;
 
@@ -22,12 +25,21 @@ void testShowGraphs()
 	//loop over events
 	for (Long64_t i = 0; i < 10; i++) {
 		gr[i] = 0;
+		t10[i] = 0;
+		t90[i] = 0;
 //	cout << "warning 1" << endl;
-		cout << i+kFirstEvent << endl;
+//		cout << i+kFirstEvent << endl;
 		tr->GetEntry(i+kFirstEvent);
 //		tr->GetEntry(i);
 //	cout << "warning 2" << endl;
 		gr[i] = new TGraph(*revent->GetGraphSignal());
+		t10[i] = revent->GetT_10();
+		t90[i] = revent->GetT_90();
+
+//		cout << t10[i] << "\t" << t90[i] << endl;
+//		cout << revent->GetEdgeSlope() << endl;
+
+
 	}//for over events
 
 //	cout << "warning 3" << endl;
@@ -35,9 +47,16 @@ void testShowGraphs()
 	TCanvas *c1 = new TCanvas("c1","test",10,10,1000,600);
 	c1->Divide(3,2);
 
+	TF1 *f1 = new TF1("f1name", "[0]+x*[1]");
+//	TF1 *f1 = new TF1("pol1", );
+
 	for (Int_t k = 0; k < 6; k++) {
 		c1->cd(k+1);
-		gr[k]->Draw();
+		gr[k]->Draw("AL*");
+
+		cout << t10[k] << "\t" << t90[k] << endl;
+		f1->SetRange(t10[k], t90[k]);
+		gr[k]->Fit(f1, "RQ");
 	}
 
 //	c1->cd(2);