Reproduction of true energy spectrum of charged particles with Monte Carlo method

To measure the energy differential cross section of charged particles, it is essential to correct the energy loss of charged particles in the target foil due to nuclear scattering. In the present work, a Monte Carlo method based on the transport of charged particles to reproduce the true energy spectrum of charged particles has been developed. In the proposed method, charged particles are generated randomly throughout the foil and transported to the exit of the target foil. At their exit, each particle is weighted with the measured spectrum, and transported back to their origin to reproduce the true energy spectrum. Proposed method has been validated with Geant-4.1 which transports charged particle dynamics within the foil while TALYS-1.8 code is used to produce the true energy spectrum of charged particles in the foil. This proposed method has also been compared with other published methods to obtain the true energy spectrum and differences in their results have been discussed.