CH ROOT Nonuniform Binning

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Rebinning via Energy Calibration

Regarding use of 4096 channel peak sensing ADC

  • Creates an array 4097 entries long to be used for bin edges
double bins[4097];
  • Opens a for loop for bin creation
for(int i=0; i<=4096; i++){
  • Fills arrays with values for bin edges using the energy calibration fit for HPGe detector
bins[i] =  i*i*(-0.000000861277) + i*(0.449519)-36.2928;
  • Cout statement to print bin edges to the terminal window as for loop is processing
cout << bins[i] << endl;
  • Closes the for loop and begins evaluation

At this point you should have an array filled with values for bin edges. Note that channel zero is now mapped to ~ -36KeV


Error: Bins must be in increasing order

This error was thrown by having an integer at +1 the value it should have been at when making the histogram. The following should allow you to find bins that are at a lower value than the previous

for(int i=0; i<=4096; i++){
if(bins[i]>=bins[i+1]){cout << bin[i] << endl;

PAS Feasibility Study Runs