Difference between revisions of "HRRL Pos Test 27Jul2012 Data Ana 3 MeV"

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= 3 MeV =
 
−
== 2 ways to calculate electron charge ==
 
−
    NE(Int_t ri, Int_t Reprate, Int_t calc_meth){
 
−
    printf("%d %d \n",ri, Reprate);
 
−
    if(ri==1) TFile *f = new TFile("C:/Users/sadiq/Documents/phd/Runs_Jul_2012/rootfiles/7-27-12/r3735.root");
 
−
    else if(ri==2) TFile *f = new TFile("C:/Users/sadiq/Documents/phd/Runs_Jul_2012/rootfiles/7-27-12/r3737.root");
 
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    TTree *ntuple = (TTree*)f->Get("ntuple");
 
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    TH1F *f9=new TH1F("f9","ADC9",4000,0,4000);
 
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        TCanvas * c2 = new TCanvas("c2", "c2",600 ,500);
 
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        c2->cd();
 
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        Long64_t ne;
 
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        printf("%d \n", ne);
 
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      //method 1 is reprate times single pulse charge
 
−
 
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        Double_t Qp1=0,Qp2=0;
 
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        if(calc_meth == 1){
 
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        //ntuple->Draw("ADC9*(1.22*1e-9)/50>>f9","1");
 
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        ntuple->Draw("ADC9>>f9");
 
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        //Qp2 = (f9->Integral())*(1.22*1e-9)/50; //charge calculate with method 2.
 
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        //f9->Fit("gaus");
 
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        ADC9_fit_mean = f9->GetMean(1);
 
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        //ADC9_fit_mean = ADC9->GetMean(1);
 
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        printf("ADC9_fit_mean = %d \n",ADC9_fit_mean);
 
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        Qp1 = ADC9_fit_mean*(1.22*1e-9)/50; //Qp: charge per pulse. The calibration: 1.22 (9nV s)/(ADC channel), 50 ohm Terminal.
 
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        printf("QP1=%g\n\n",Qp1);
 
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        printf("e- charge per pulse with method 1: %g\n",Qp1);
 
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        //printf("Reprate: %d\n",Reprate);
 
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        Qs=Reprate*Qp1; //Qs: Charge per second.
 
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        //printf("e- charge per second: %g\n",Qs);
 
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        ne=Qs/Q_e; //Ne: number of electrons per second.
 
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                }
 
−
 
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        if(calc_meth == 2){
 
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        //ntuple->Draw("ADC9*(1.22*1e-9)/50>>f9","1");
 
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        ntuple->Draw("ADC9>>f9");
 
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        printf("%bin# Bin Content%d\n");
 
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        for(i=1; i<=4000; i++){
 
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        //for(i=0; i<=600; i++){
 
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        bin_content[i] = f9->GetBinContent(i);
 
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        //Qp2+=(i*(1.22*1e-9)/50)*bin_content[i];
 
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        Qp2+=i*bin_content[i]*(1.22*1e-9)/50;
 
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        //printf("%d  %d  %g \n",i,bin_content[i],Qp2);
 
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        }
 
−
 
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        //printf("Integral = %d \n",f9->Integral());
 
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        //Qp2 = (f9->Integral())*(1.22*1e-9)/50; //charge calculate with method 2.   
 
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        printf("QP2=%g\n\n",Qp2);
 
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        printf("total e- charge in this run with method 2: %g\n",Qp2);
 
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        //printf("Reprate: %d\n",Reprate);
 
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        Qs=Qp2; //Qs: Charge per second.
 
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        printf("e- charge per second: %g\n",Qs);
 
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        printf("e- charge: %g\n",Q_e);
 
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        ne=Qs/Q_e; //Ne: number of electrons per second.
 
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        printf("1. total number of electrons in this run: %g\n",ne);
 
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                }
 
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        printf("2. total number of electrons in this run: %g\n",ne);
 
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        c2->Close();
 
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        f->Close();
 
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        return(ne);
 
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        }
 
  
 +
= Hand calculation on electron rate =
  
 +
At full current on Faraday cup 1 we have 1201 nVs/ADC channel.
  
−
== results on 3 MeV with Method 1==
+
<math>\frac{1201~nVs}{50 \Omega} = 24~nAs = 24~nC</math>
  
 +
charge rate under 300 Reprate: <math>300 \times 24~nAs = 7200~nC = 7.2 \frac{\mu C }{ s}</math>
  
 +
 +
<math> \frac{7.2 \times 10^{-6}\frac{ C }{ s}} {1.6 \times 10^{-19} C} = 4.5 \times 10^{13}</math>
 +
 +
 +
 +
 +
= Data =
 +
== 3735 sub 3736 ==
  
 
{| border="1"
 
{| border="1"
 
|-
 
|-
−
|run in||run out||NaI Left||NaI Right||NaI Left around 511 keV||NaI Right around 511 keV||e- rate (Hz)||e+ rate (Hz)||e+/e+ ratop
+
|run in||run out || NaI Left: image with cut || NaI Right: image with cut || NaI Left: image with no cut (rate calculate with cut)|| NaI Right: image with no cut (rate calculate with cut) || NaI Left: image with cut, no normalization || NaI Right:  , no normalization
 
|-
 
|-
−
|3735||3736||[[File:hrrl_pos_27jul2012_data_ana_with_Cuts_r3735_sub_r3736_DL.png|100 px]]||3.91498e+013||0.25656||6.55329e-015
+
|3735||3736
−
||[[File:hrrl_pos_27jul2012_data_ana_with_Cuts_r3735_sub_r3736_DR.png|100 px]]||3.91498e+013||0.25656||6.55329e-015
+
||[[File:hrrl_pos_27jul2012_data_ana_with_Cuts_r3735_sub_r3736_DL_with_cut.png|400 px]]
−
|-
+
||[[File:hrrl_pos_27jul2012_data_ana_with_Cuts_r3735_sub_r3736_DR_with_cut.png|400 px]]
−
|3737||3736||[[File:hrrl_pos_27jul2012_data_ana_with_Cuts_r3737_sub_r3736_DL.png|100 px]]||4.14545e+013||0.251457||6.06586e-015
+
 
−
||[[File:hrrl_pos_27jul2012_data_ana_with_Cuts_r3737_sub_r3736_DR.png|100 px]]||4.14545e+013||0.251457||6.06586e-015
+
||[[File:hrrl_pos_27jul2012_data_ana_with_Cuts_r3735_ove_r3736_DL_with_cut_no_norm.png|400 px]]
 +
||[[File:hrrl_pos_27jul2012_data_ana_with_Cuts_r3735_ove_r3736_DR_with_cut_no_norm.png|400 px]]
 +
 
 +
||[[File:hrrl_pos_27jul2012_data_ana_with_Cuts_r3735_ove_r3736_DL_no_cut.png|400 px]]
 +
||[[File:hrrl_pos_27jul2012_data_ana_with_Cuts_r3735_ove_r3736_DR_no_cut.png|400 px]]
  
 
|-
 
|-
 
|}
 
|}
  
−
== results on 3 MeV with Method 2==
+
 
 +
Reprate = 300 Hz
 +
 
 +
Run time = 1002 s
 +
 
 +
Pulses = 301462
 +
 
 +
Events = 9045
 +
 
 +
e- rate = 7.80042e+013 +- 2.25903e+012 (Hz)
 +
 
 +
e+ rate = 1.41748 +- 0.0376119 (Hz).
 +
 
 +
e+/e-=1.81719e-014+-4.8238e-016.
 +
 
 +
e- current:I_e- =6.26271e-006+-3.61937e-007 (A).
 +
 
 +
e+/I_e-=1.4 Hz e+ / 6.3 \muA e-
 +
 
 +
== 3737 sub 3736 ==
 +
 
  
 
{| border="1"
 
{| border="1"
 
|-
 
|-
−
|3735||3736||[[File:hrrl_pos_27jul2012_data_ana_with_Cuts_r3735_sub_r3736_DL.png|100 px]]||1.18161e+015||0.25656||2.16258e-013
+
|run in||run out
−
||[[File:hrrl_pos_27jul2012_data_ana_with_Cuts_r3735_sub_r3736_DR.png|100 px]]||1.18161e+015||0.25656||2.16258e-013
+
|| NaI Left: image with cut || NaI Right: image with cut || NaI Left: image with no cut (rate calculate with cut)|| NaI Right: image with no cut (rate calculate with cut) || NaI Left: image with cut, no normalization || NaI Right:  , no normalization
 
|-
 
|-
−
|3737||3736||[[File:hrrl_pos_27jul2012_data_ana_with_Cuts_r3737_sub_r3736_DL.png|100 px]]||2.16202e+015||0.251457||1.27239e-013
+
|3737||3736
−
||[[File:hrrl_pos_27jul2012_data_ana_with_Cuts_r3737_sub_r3736_DR.png|100 px]]||2.16202e+015||0.251457||1.27239e-013
+
||[[File:hrrl_pos_27jul2012_data_ana_with_Cuts_r3737_sub_r3736_DL_with_cut.png|400 px]]
 +
||[[File:hrrl_pos_27jul2012_data_ana_with_Cuts_r3737_sub_r3736_DR_with_cut.png|400 px]]
 +
 
 +
||[[File:hrrl_pos_27jul2012_data_ana_with_Cuts_r3737_ove_r3736_DL_with_cut_no_norm.png|400 px]]
 +
||[[File:hrrl_pos_27jul2012_data_ana_with_Cuts_r3737_ove_r3736_DR_with_cut_no_norm.png|400 px]]
 +
 
 +
||[[File:hrrl_pos_27jul2012_data_ana_with_Cuts_r3737_ove_r3736_DL_no_cut.png|400 px]]
 +
||[[File:hrrl_pos_27jul2012_data_ana_with_Cuts_r3737_ove_r3736_DR_no_cut.png|400 px]]
  
−
|-
 
 
|}
 
|}
 +
 +
Reprate = 300 Hz
 +
 +
Run time = 1094 s
 +
 +
Pulses = 329368
 +
 +
Events = 15361
 +
 +
e- rate = 1.36517e+014 +- 2.39286e+012 (Hz)
 +
 +
e+ rate = 1.60462 +- 0.0382982 (Hz).
 +
 +
e+/e-=1.1754e-014+-2.8058e-016.
 +
 +
e- current:I_e- =1.52232e-005+-3.83378e-007 (A).
 +
 +
e+/I_e-=1.6 Hz e+ / 15 \muA e-
 +
 +
 +
 +
 +
 +
 +
 +
 +
 +
 +
 +
 +
[[https://wiki.iac.isu.edu/index.php/Beam_Test_Jul_27_2012 go back]]

Latest revision as of 04:23, 24 September 2012

Hand calculation on electron rate

At full current on Faraday cup 1 we have 1201 nVs/ADC channel.

[math]\frac{1201~nVs}{50 \Omega} = 24~nAs = 24~nC[/math]

charge rate under 300 Reprate: [math]300 \times 24~nAs = 7200~nC = 7.2 \frac{\mu C }{ s}[/math]


[math] \frac{7.2 \times 10^{-6}\frac{ C }{ s}} {1.6 \times 10^{-19} C} = 4.5 \times 10^{13}[/math]



Data

3735 sub 3736

run in run out NaI Left: image with cut NaI Right: image with cut NaI Left: image with no cut (rate calculate with cut) NaI Right: image with no cut (rate calculate with cut) NaI Left: image with cut, no normalization NaI Right: , no normalization
3735 3736 Hrrl pos 27jul2012 data ana with Cuts r3735 sub r3736 DL with cut.png Hrrl pos 27jul2012 data ana with Cuts r3735 sub r3736 DR with cut.png Hrrl pos 27jul2012 data ana with Cuts r3735 ove r3736 DL with cut no norm.png Hrrl pos 27jul2012 data ana with Cuts r3735 ove r3736 DR with cut no norm.png Hrrl pos 27jul2012 data ana with Cuts r3735 ove r3736 DL no cut.png Hrrl pos 27jul2012 data ana with Cuts r3735 ove r3736 DR no cut.png


Reprate = 300 Hz

Run time = 1002 s

Pulses = 301462

Events = 9045

e- rate = 7.80042e+013 +- 2.25903e+012 (Hz)

e+ rate = 1.41748 +- 0.0376119 (Hz).

e+/e-=1.81719e-014+-4.8238e-016.

e- current:I_e- =6.26271e-006+-3.61937e-007 (A).

e+/I_e-=1.4 Hz e+ / 6.3 \muA e-

3737 sub 3736

run in run out NaI Left: image with cut NaI Right: image with cut NaI Left: image with no cut (rate calculate with cut) NaI Right: image with no cut (rate calculate with cut) NaI Left: image with cut, no normalization NaI Right: , no normalization
3737 3736 Hrrl pos 27jul2012 data ana with Cuts r3737 sub r3736 DL with cut.png Hrrl pos 27jul2012 data ana with Cuts r3737 sub r3736 DR with cut.png Hrrl pos 27jul2012 data ana with Cuts r3737 ove r3736 DL with cut no norm.png Hrrl pos 27jul2012 data ana with Cuts r3737 ove r3736 DR with cut no norm.png Hrrl pos 27jul2012 data ana with Cuts r3737 ove r3736 DL no cut.png Hrrl pos 27jul2012 data ana with Cuts r3737 ove r3736 DR no cut.png

Reprate = 300 Hz

Run time = 1094 s

Pulses = 329368

Events = 15361

e- rate = 1.36517e+014 +- 2.39286e+012 (Hz)

e+ rate = 1.60462 +- 0.0382982 (Hz).

e+/e-=1.1754e-014+-2.8058e-016.

e- current:I_e- =1.52232e-005+-3.83378e-007 (A).

e+/I_e-=1.6 Hz e+ / 15 \muA e-







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