The computer simulation of deposited energies and stopping ranges of particles in the STEP spectrometer of the "Warning" space project
|1Dudnik, OV, 2Malykhina, TV |
1Institute of Radio Astronomy of National Academy of Sciences of Ukraine, Kharkiv, V.N. Karazin National University of Kharkiv, Kharkiv, Ukraine
2V.N. Karazin National University of Kharkiv, Kharkiv, Ukraine
|Kosm. nauka tehnol. 2003, 9 ;(1):015-021|
|Publication Language: Russian|
The software for simulating the processes of energetic particle passage through various materials is developed. We present the results of the Monte Carlo simulation of the processes of electron, proton, and α -particle passage through the detectors of the STEP satellite spectrometer of the Warning space mission with the use of the GEANT4.2 code. For each of the detectors, deposited energies, stopping ranges, as well as number of optical photons of charge particles and γ -quanta were calculated. The simulation shows that the device will allow one to detect fluxes and energy spectra of electrons in the range of 0.2–23 MeV, protons in the range of 3.5–76 MeV, and α -particles in the energy range of 13.7–307 MeV. We compared simulated results with the measurements of spectra of low energy electron and γ -quanta from radioactive sources using the laboratory setup and STEP device detectors. The laboratory measurements and of computer simulation results are found to be in rather good agreement.
|Keywords: GEANT4.2, Monte Carlo simulation, STEP satellite|
15. Salvat F., Fernandez-Varea J. M., Acosta E., Sempau J. PENELOPE — A code system for Monte Carlo simulation of electron and photon transport. In: Workshop Proc. Issyles-Moulineaux, France, 5—7 November 2001. OECD/NEA Data Bank (2001).