метод Монте– Карло

CLASSICAL ANALYSIS OF RECOMBINATION OF ANTIHYDROGEN IN A STRONG MAGNETIC FIELD

Authors: Serov V. V., Derbov V. L., Vinitsky S. l.

Basing on numerical simulation of classical trajectories, the influence of a strong magnetic field on the rate of the spontaneous radiative recombination of antihydrogen atoms in cold antiproton-positron plasma is theoretically studied under the conditions of the ATHENA and ATRAP experiments carried out in CERN. The effect of the mag netic field is estimated by Monte-Carlo calculation of the change in the cross section of the positron hitting the near-nucleus region with the radius typical for the atomic ground state.

Calculation and Approximation of Radial Dose Function of Iridium Sources

Authors: Belousov A. V., Belianov A. А., Chernyaev A. P.

Background and Objectives: The purpose of this paper is to investigate optimal fitting parameters for approximating radial dose function of Iridium sources. Calculations were performed using written by authors source code based on GEANT4 library package designed to simulate particle transport processes using Monte–Carlo method. Results: Following parameters of the source were determined: dose rate constant, radial dose function and anisotropy function. Obtained satisfactory coherence with other researchers’ data.