Gamma-ray beam produced by a plasma lens focused electron bunch

An accelerator electron bunch is focused and modulated in a plasma lens and then converted into a gamma-ray source using bremsstrahlung radiation in a dense material. In the linear regions with beam density much smaller than plasma density, a proper plasma density needs to be chosen to produce a hig...

Full description

Saved in:
Bibliographic Details
Published in:Physics of plasmas 2020-02, Vol.27 (2)
Main Authors: Hu, Zhang-Hu, Wang, Xiao-Juan, Hui, De-Xuan, Zhao, Quan-Tang, Cheng, Rui, Zhao, Yong-Tao, Zhang, Zi-Min, Wang, You-Nian
Format: Article
Language:English
Subjects:
Bremsstrahlung
Charge density
Divergence
Gamma ray beams
Gamma ray sources
Plasma
Plasma density
Plasma physics
Radiographs
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:An accelerator electron bunch is focused and modulated in a plasma lens and then converted into a gamma-ray source using bremsstrahlung radiation in a dense material. In the linear regions with beam density much smaller than plasma density, a proper plasma density needs to be chosen to produce a high quality gamma-ray beam with a small spot size and low divergence, which can be applied in the radiograph of complex and dense objects with sub-millimeter resolution. As the bunch charge increases and bunch density approaches plasma density, micro-bunching of the bunch due to the nonuniform transverse wakefield and bunch energy chirp is observed, leading to a significant increase in gamma-ray beam divergence.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.5126256