A study of the secondary electrons yield produced by laser induced ions on Faraday cups as a function of beam angle

Plasma Physics by Laser and Applications 2013 Conference

Nassisi, V.^1,2 ; Delle Side, D.^1,2 ; Velardi, L.^1,2 ; Buccolieri, G.^1,2 ; De Benedittis, A.^1 ; Paladini, F.^1

LEAS-Dipartimento di Matematica e Fisica Ennio de Giorgi, Universitá Del Salento, Via per Arnesano, 73100, Lecce, Italy^1

INFN Sezione di Lecce, Via per Arnesano, Lecce 73100, Italy^2

关键词: Beam angle;    Beam incidence angle;    Faraday cups;    Laser induced;    Laser plasma;    Non-normal incidences;    Secondary electron emissions;    Secondary electrons;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/508/1/012021/pdf
DOI  :  10.1088/1742-6596/508/1/012021

来源: IOP

【 摘 要 】

We analyze the dependence of the Secondary Electron Emission yield on the beam incidence angle (θ) in the case of Faraday cups used for diagnosis of laser-plasma. We show that this dependence follows a secα(θ) law, consequently θ ≠ 0 situations (i.e. non-normal incidence) should be treated with care to avoid wrong measurements.