diff --git a/data/dataDSR4/analysis_07_1.root b/data/dataDSR4/analysis_07_1.root
deleted file mode 100644
index 407c22db450ee7334e1f8a5a23d80e83cb095058..0000000000000000000000000000000000000000
Binary files a/data/dataDSR4/analysis_07_1.root and /dev/null differ
diff --git a/dataClasses/AEvent.cpp b/dataClasses/AEvent.cpp
index 1baa662e57cbcc62a3a5cebd83af577ae6914ab5..d3153b7ae2f98df0855bac8c0f96cda237382d49 100644
--- a/dataClasses/AEvent.cpp
+++ b/dataClasses/AEvent.cpp
@@ -52,6 +52,7 @@ void AEvent::ProcessEvent() {
 
 	SetGraphs();
 	FindFrontProperties();
+	SetLED();
 //	SetGraphs();
 	SetCFD();
 	SetChargeCFD();
@@ -279,3 +280,15 @@ void AEvent::SetMaxAmplitudes() {
 	fTimeAmpMax = maxAmpT;
 
 }
+
+void AEvent::SetLED(Double_t threshold) {
+	
+	Double_t time = 0;
+	const Double_t timeStep = 0.1;
+	while( time < 200. && fGraphSignal->Eval(time) <= threshold ) {
+		fTimeLED = time;
+		time = time + timeStep;
+	}
+	//fTimeLED = time;
+
+}
diff --git a/dataClasses/AEvent.h b/dataClasses/AEvent.h
index 46923a18c4b319e587ae5d1795b0136a82374d33..90c31a819514df1d7fc20e09581cc6df208e1a61 100644
--- a/dataClasses/AEvent.h
+++ b/dataClasses/AEvent.h
@@ -48,6 +48,8 @@ private:
 	Double_t fTimeCFD;			//zero-crossing time
 	Double_t fChargeCFD;	//charge of the signal in Coulomb
 
+	Double_t fTimeLED;	//time of LED threshold crossing
+
 	TGraph *fGraphSignal;
 	TGraph *fGraphCFD;
 
@@ -120,7 +122,7 @@ public:
 	//in range of (tmin,tmax) in ns)
 	//CFD time is taken as a start point
 
-	void SetLED(Double_t threshold = 0.001);
+	void SetLED(Double_t threshold = 0.015);
 	//leading edge discriminator
 
 private:
diff --git a/macros/NoiseSigma.cpp b/macros/NoiseSigma.cpp
index ca47f1d6e3d593c656db9d6a7b72f6864d98cf0a..05bb9ae0eb440ac5a2f3025ecd6bb707cfe1fc0e 100644
--- a/macros/NoiseSigma.cpp
+++ b/macros/NoiseSigma.cpp
@@ -3,8 +3,8 @@
 
 	const Long64_t kFirstEvent = 128;
 
-	TFile fr("../data/dataDSR4/Neurad_7_08_NEW.root");
-//	TFile fr("../data/dataDSR4/analysis_07_8.root");
+//	TFile fr("../data/dataDSR4/Neurad_7_08_NEW.root");
+	TFile fr("../data/dataDSR4/analysis_07_8.root");
 //	TFile fr("../data/dataDSR4/Neurad_081216_2NEW.root");
 //	TFile fr("../data/dataTektronix/exp18.root");
 //	TFile fr("../data/dataTektronix/analysisExp7.root");
@@ -35,6 +35,8 @@
 
 		c1->cd(i+1);
 		histNoise[i]->Draw();
+		histNoise[i]->Fit("gaus");
+		gStyle->SetOptFit();
 		c1->Update();
 	}
 
diff --git a/macros/histCorr.C b/macros/histCorr.C
index c9d304a343d35082afdb746bef1f960ac4e36e05..41846dc5610c6ac1a21bbedc57c7c5bfe57f9826 100644
--- a/macros/histCorr.C
+++ b/macros/histCorr.C
@@ -1,8 +1,5 @@
 //#include "TCanvas.h"
 
-<<<<<<< HEAD
-void histCorr(const char *filename = "analysis_07_8.root", const char *foldername = "7_8", const char *ext = ".eps", const Bool_t can1 = 0, const Bool_t can2 = 0, const Bool_t can3 = 0, const Bool_t can4 = 0,  const Bool_t can5 = 1)
-=======
 void histCorr(
 //		const char *filename = "analysis_07_8.root",
 		const char *filename = "analysis_08_2.root",
@@ -10,12 +7,8 @@ void histCorr(
 		const char *foldername = "8_2",
 //		const char *ext = ".eps",
 		const char *ext = ".gif",
-<<<<<<< HEAD
-		const Bool_t can1 = 1, const Bool_t can2 = 1, const Bool_t can3 = 1, const Bool_t can4 = 1, const Bool_t can5 = 1)
->>>>>>> 1612d04b19c3139e125a1642bdb0763585790d84
-=======
+
 		const Bool_t can1 = 0, const Bool_t can2 = 0, const Bool_t can3 = 0, const Bool_t can4 = 0, const Bool_t can5 = 1)
->>>>>>> 07d2b501d7fd6bf88dd2d6b203a724d53357bbe3
 {
 	gSystem->Load("../libData.so");
 	TFile *f = new TFile(Form("../data/dataDSR4/%s", filename));