University of Oulu

Mishev, Alexander; Artamonov, Anton; Kovaltsov, Genady; Mironova, Irina; Usoskin, Ilya 2017 Computation of electron precipitation atmospheric ionization : updated model CRAC-EPII. 35th international cosmic ray conference, ICRC2017, The astroparticle physics conference. 12-20 July 2017, Bexco, Busan, Korea, PoS(ICRC2017)086, https://pos.sissa.it/301/086/pdf

Computation of electron precipitation atmospheric ionization : updated model CRAC-EPII

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Author: Mishev, Alexander1; Artamonov, Anton1; Kovaltsov, Genady2;
Organizations: 1Space Climate Research Unit, University of Oulu, Finland
2Ioffe Physical-Technical Institute of Russian Academy of Sciences, St. Petersburg, Russia
3St. Petersburg State University, Institute of Physics, St. Petersburg, Russia
4Space Climate Research Unit; Sodankylä Geophysical Observatory (Oulu unit), University of Oulu, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 0.3 MB)
Persistent link: http://urn.fi/urn:nbn:fi-fe2017103050364
Language: English
Published: Sissa, 2017
Publish Date: 2017-10-30
Description:

Abstract

A new model of the CRAC family, CRAC:EPII (Cosmic Ray Atmospheric Cascade: Electron Precipitation Induced Ionization) is presented. The model allows one to calculate atmospheric ionization induced by precipitating electrons. The model is based on pre-computed with highprecision ionization yield functions, which are obtained using full Monte Carlo simulation of electron propagation and interaction in the Earth’s atmosphere, explicitly considering all physical processes involved in ion production. The simulations were performed using GEANT 4 simulation tool PLANETOCOSMICS with NRLMSISE 00 atmospheric model. A quasi-analytical approach, which allows one to compute the ionization yields for events with arbitrary incidence is also presented. It is compared with Monte Carlo simulations and good agreement between Monte Carlo simulations and quasi-analytical approach is achieved.

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Series: Pos proceedings of science
ISSN: 1824-8039
ISSN-E: 1824-8039
ISSN-L: 1824-8039
Article number: 086
Host publication: 35th international cosmic ray conference, ICRC2017, The astroparticle physics conference. 12-20 July 2017, Bexco, Busan, Korea
Conference: 35th International Cosmic Ray Conference – ICRC217-12-20 July, 2017, Bexco, Busan, Korea
Type of Publication: B3 Article in conference pro-ceedings
Field of Science: 115 Astronomy and space science
Subjects:
Funding: This work was supported by the Academy of Finland (project 272157, Center of Excellence ReSoLVE).
Academy of Finland Grant Number: 272157
Detailed Information: 272157 (Academy of Finland Funding decision)
Copyright information: © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).
  https://creativecommons.org/licenses/by-nc-nd/4.0/