Calculation of atmospheric ionization induced by electrons with non-vertical precipitation: Updated model CRAC-EPII

被引：15
作者：
Artamonov, Anton [1 ]
Mironova, Irina [2 ]
Kovaltsov, Gennady [3 ]
Mishev, Alexander [1 ]
Plotnikov, Evgenii [4 ]
Konstantinova, Natalia [5 ]
机构：
[1] Univ Oulu, Space Climate Res Unit, Oulu, Finland
[2] St Petersburg State Univ, Inst Phys, St Petersburg, Russia
[3] Ioffe Phys Tech Inst, St Petersburg, Russia
[4] Nat Res Tomsk Polytech Univ, Tomsk, Russia
[5] RAS, State Sci Ctr Russian Federat, Inst Biomed Problem, Moscow, Russia
来源：
ADVANCES IN SPACE RESEARCH | 2017年 / 59卷 / 09期
基金：
芬兰科学院;
关键词：
Relativistic electron precipitation (REP); Ionization by electrons and bremsstrahlung; Monoenergetic relativistic electrons; Angular distributions of relativistic electron precipitation; ENERGY DEPOSITION;
D O I：
10.1016/j.asr.2017.02.019
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
In this paper we present a method to compute ionization rates induced by relativistic electron precipitation with arbitrary incidence. Atmospheric ionization for monoenergetic (>100 keV) relativistic electron precipitation including explicitly ionization by Bremsstrahlung radiation is considered. Two peaks of energy deposition in the atmosphere can be identified. The first ionization peak is related to direct ionization of primary relativistic electrons, while the second corresponds to Bremsstrahlung radiation. The ionization rates are presented us Look-up Tables for vertical, isotropic and angular distributions for 15 degrees, 30 degrees and 45 degrees angles of electron incidence. A computation algorithm is provided to compute ionization for an arbitrary angular distribution of precipitation electrons. (C) 2017 COSPAR. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：2295 / 2300
页数：6
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