Research on Brightness Measurement of Intense Electron Beam

TL;DR

This paper investigates the brightness of multi-pulsed high-current electron beams using a 2MeV injector and compares three measurement methods, providing insights into their effectiveness with a time-resolved system.

Contribution

It introduces a new experimental setup for measuring electron beam brightness and compares three different measurement techniques in a high-current, multi-pulsed context.

Findings

The pepper-pot method effectively measures beam brightness.

Magnetic field collimator provides distinct measurement results.

Time-resolved system captures dynamic changes in beam brightness.

Abstract

The mostly research fasten on high emission density of injector to study electron beam's brightness in LIA. Using the injector(2MeV) was built to research brightness of multi-pulsed high current(KA) electron beam, and researchs three measurement method (the pepper-pot method, beam collimator without magnetic field, beam collimator with magnetic field method) to detect beam's brightness with time-resolved measurement system.