int plot_1d_scan(char * fname="C:/HOME/dino/l2d/root/scan.root"){
gStyle->SetPalette(1);
TFile *file = new TFile(fname);
TNtuple *ntuple = (TNtuple*) file->Get("nt");
TCanvas *canvas = new TCanvas("canvas","canvas1",800,800);
canvas->Divide(2,2);
canvas->cd(1)->SetLogz(1);
// ntuple2->Draw("y>>h1d(100,0,100)","ch==0 && adc>49");
ntuple->Draw("x>>h1d(100,0,100)","ch==0 && tdc>150 && tdc<180");
//ntuple2->Draw("adc:y>>h0(200,-0.5,199.5,100,0,100)","ch==0","colz");
//canvas2->cd();
//canvas2->SetLogz(1);
// ntuple2->Draw("y>>h3(100,0,100)","ch==3 && adc>40");
}