// plot ADC for fixed eta
plEta (int eta0=5, char *name="outL7.hist.root"){
  TFile *f=new TFile(name);

  int sec,isub,eta;

  int ic=1;
  eta=eta0;

  for(eta=1;eta<=12;eta++)
    {
      TCanvas *c=new TCanvas("bb","ccc",400,900);
      c->Divide(1,15);
  int nh=0;
  
    for(sec=5;sec<=7;sec++) 
      for(isub=0;isub<5;isub++) {
	char tt1[100];
	sprintf(tt1,"%2.2dT%c%2.2dc%d",sec,'A'+isub,eta,ic);
	TH1F*h= (TH1F*) f->Get(tt1); // find histrogram in file with this name
	nh++;
	c->cd(nh);
	printf("aa %d %p %s\n",nh, h, tt1);
	h->Draw();
	h->SetAxisRange(10,2000);
	h->SetNdivisions(-104);
	//gPad->SetLogy();
      }
    char text[100];
    sprintf(text,"eta%2.2d.ps",eta);
    c->Print(text);
    //    delete c; 
    printf("nh=%d\n",nh);
  }
}