draw_binding.C

Explore binding energies

This example macro fills the nuclear chart with binding energy per nucleon.

Start tkn-root, compile and execute this macro :

tkn-root
 _____    _   _   |  Documentation: https://tkn.in2p3.fr/
(_   _)  | \ | |  |  Source: https://gitlab.in2p3.fr/tkn/tkn-lib
  | |_  _|  \| |  |
  | | |/ /     |  |  Version 1.0
  | |   <| |\  |  |
  |_|_|\_\_| \_|  |  Database: TkN_ensdf_221101_xundl_210701_v1.0.db
 
 
tkn [0] .L draw_binding.C+
tkn [1] draw_binding()

It produces the following plot:

Source code :

#include "Rtypes.h"
#include "Riostream.h"
#include "tkmanager.h"
#include "tknuclear_chart.h"
 
using namespace  tkn;
 
void draw_binding(){
 
    tkn::tkmanager dtm;
    auto* nn = new tknuclear_chart("Binding energy (in MeV/nuc)",tknuclear_chart::kAll,true);
    for(const auto &nuc : dtm.get_nuclei()) {
        nn->set_value(nuc->get_z(), nuc->get_n(), nuc->get_binding_energy_over_a());
    }
 
    nn->draw();
    nn->hide_empty_bins();
    nn->save_as("draw_binding.png");
}