Double differential distributions of e-emission in ionization of N2 by 3, 4 and 5 keV electron impact

被引：2

作者：

Chowdhury, Madhusree Roy ^{[1
,2
]}

Chauhan, Dhaval ^{[2
]}

Limbachiya, Chetan G. ^{[2
]}

Tokesi, Karoly ^{[3
]}

Champion, Christophe ^{[4
]}

Weck, Philippe F. ^{[5
]}

Tribedi, Lokesh C. ^{[1
]}

机构：

[1] Tata Inst Fundamental Res, Mumbai 400005, Maharashtra, India

[2] Maharaja Sayajirao Univ Baroda, Vadodara 390001, India

[3] ATOMKI, Inst Nucl Res, Debrecen, Hungary

[4] Bordeaux Univ, Ctr Lasers Intenses & Applicat CELIA, Talence, France

[5] Sandia Natl Labs, Albuquerque, NM 87185 USA

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2020年 / 53卷 / 23期

关键词：

ionization; electron impact; di-atomic molecule; DDCS; CB1; CTMC; TOTAL CROSS-SECTION; CHARGE-TRANSFER; THEORETICAL DETERMINATION; SCATTERING; MOLECULES; ATOMS; IONS; THRESHOLD; MODEL; EXCITATION;

D O I：

10.1088/1361-6455/abbe2b

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report the measurement of the absolute double differential cross sections (DDCS) of secondary electrons emitted due to the ionization of N-2 molecule in collisions with fast electrons having energies between 3 and 5 keV. The emitted electrons with energies from 1-500 eV have been measured for different forward and backward emission angles. The measured DDCS have been compared with the state-of-the-art first Born approximation with correct boundary condition (CB1) model calculations as well as with the classical trajectory Monte Carlo (CTMC) method. From the measured DDCS, the single differential cross sections (SDCS) as a function of the emission energies have been computed and eventually the total ionization cross sections (TCS) have been derived. The TCS values are also compared with a semi-empirical calculation, namely, the CSP-ic (complex scattering potential-ionization contribution) model.

引用

页数：9

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