/[PAMELA software]/tof/flight/ToFdEdx_patch/macros/plot_parpos.cxx
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Contents of /tof/flight/ToFdEdx_patch/macros/plot_parpos.cxx

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Revision 1.1 - (show annotations) (download)
Mon Dec 10 18:47:01 2018 UTC (5 years, 11 months ago) by mayorov
Branch: MAIN
CVS Tags: HEAD
ToFdEdx_patch from Wolfgang. Follows Rita Carbone's advanced method to
derive the ToF dEdx (including PMT saturation, Bethe-Bloch effect, etc.)

1 {
2
3 TString name1 = "../GoodParam/desaturation_position.txt";
4 ifstream fin1(name1);
5
6
7 gROOT->SetStyle("Plain");
8 gStyle->SetOptStat(0);
9 gStyle->SetOptFit(0);
10 gStyle->SetFuncColor( kRed );
11
12 Float_t tp[48][4];
13
14 char *s = new char[1];
15
16 Int_t idummy;
17 Float_t p0,p1,p2,p3;
18
19
20 for (int i=0; i<48; i++) {
21 fin1>>idummy>>p0>>p1>>p2>>p3;
22 cout<<" "<<idummy<<" "<<p0<<" "<<p1<<" "<<p2<<" "<<p3<<endl;
23 tp[i][0]=p0;
24 tp[i][1]=p1;
25 tp[i][2]=p2;
26 tp[i][3]=p3;
27 }
28 fin1.close();
29
30
31 TCanvas *c = new TCanvas("c","histograms",800,600);
32
33 TF1 *f1[48];
34
35 TGraph *gr[48];
36
37
38 for (Int_t i=0; i<48; i++) {
39
40 cout<<"PMT "<<i<<endl;
41
42 /*
43 double ToFNaNuclei::f_pos( TArrayF &p, float x )
44 return
45 p[0] +
46 p[1]*x +
47 p[2]*x*x +
48 p[3]*x*x*x;
49 */
50
51 f1[i] = new TF1("f1","[0]+[1]*x+[2]*x*x+[3]*x*x*x",0,1000);
52 f1[i].SetParameters(tp[i][0],tp[i][1],tp[i][2],tp[i][3]);
53 f1[i]->SetLineColor(kRed);
54
55
56 for (Int_t ii=1; ii<20; ii++) {
57 Float_t xb = ii*20.;
58 Float_t yhelp = f1[i]->Eval(xb);
59 cout<<xb<<" "<<yhelp<<endl;
60 }
61
62
63
64 TH2F *hr = new TH2F("hr","",2,0,1000,2,0,1000);
65 hr->SetXTitle("adccorr");
66 hr->SetYTitle("f_pos");
67 hr->Draw();
68
69 f1[i]->Draw("same");
70
71 //gPad->SetLogy();
72 gPad->SetGrid();
73
74 c->Update();
75 gets(s);
76
77 }
78
79 //==========================================================================
80 //==========================================================================
81 //==========================================================================
82
83 TCanvas *c1 = new TCanvas("c1","histograms1",1100,800);
84 c1->Divide(8,6);
85
86 TF1 *f1[48];
87
88 for (Int_t i=0; i<48; i++) {
89
90 cout<<"PMT "<<i<<endl;
91
92 c1->cd(i+1);
93
94
95 TH2F *hr = new TH2F("hr","",2,0,1000,2,0,1000);
96 hr->SetXTitle("adccorr");
97 hr->SetYTitle("f_pos");
98 hr->Draw();
99
100
101 f1[i]->Draw("same");
102
103 //gPad->SetLogy();
104 gPad->SetGrid();
105
106 }
107
108
109 }
110
111
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126 }

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