{
gROOT->Reset();
LNCanvas *ln1 = new LNCanvas("ln1");

PInput p;
TH1F *hist;
hist = p.inpHist("60Co.dat");

float a0 = -29.9;
float a1 = 3.111;
hist->GetXaxis()->Set(2048, a0, a0+a1*2048);

hist->GetXaxis()->SetRange(100,900);

hist->Draw();

TLatex *tex = new TLatex(80,1075,"counts");
tex->SetTextSize(0.043);
tex->SetTextAngle(90);
tex->SetLineWidth(2);
tex->Draw();
tex = new TLatex(1230,-260,"gamma energy (keV)");
tex->SetTextSize(0.043);
tex->SetLineWidth(2);
tex->Draw();
tex = new TLatex(1080,2600,"1173");
tex->SetTextSize(0.035);
tex->SetLineWidth(2);
tex->Draw();
tex = new TLatex(1260,2150,"1332");
tex->SetTextSize(0.035);
tex->SetLineWidth(2);
tex->Draw();
tex = new TLatex(2350,150,"sum peak");
tex->SetTextSize(0.035);
tex->SetLineWidth(2);
tex->Draw();
ln1->Modified();
ln1->cd();
}