Electro-optic Spatial Decoding on the Spherical-wavefront Coulomb Fields of Plasma Electron Sources

Overview

Journal Sci Rep

Specialty Science

Date 2018 Feb 15

PMID 29440772

Citations 1

Authors

K Huang

T Esirkepov

J K Koga

H Kotaki

M Mori

Y Hayashi

N Nakanii

S V Bulanov

M Kando

Affiliations

Soon will be listed here.

Abstract

Detections of the pulse durations and arrival timings of relativistic electron beams are important issues in accelerator physics. Electro-optic diagnostics on the Coulomb fields of electron beams have the advantages of single shot and non-destructive characteristics. We present a study of introducing the electro-optic spatial decoding technique to laser wakefield acceleration. By placing an electro-optic crystal very close to a gas target, we discovered that the Coulomb field of the electron beam possessed a spherical wavefront and was inconsistent with the previously widely used model. The field structure was demonstrated by experimental measurement, analytic calculations and simulations. A temporal mapping relationship with generality was derived in a geometry where the signals had spherical wavefronts. This study could be helpful for the applications of electro-optic diagnostics in laser plasma acceleration experiments.

Citing Articles

Electro-optic 3D snapshot of a laser wakefield accelerated kilo-ampere electron bunch.

Huang K, Jin Z, Nakanii N, Hosokai T, Kando M Light Sci Appl. 2024; 13(1):84.

PMID: 38584154 PMC: 10999425. DOI: 10.1038/s41377-024-01440-2.

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