Study on characteristics and beam emission theory of UTEM electron gun
In the ultrafast transmission electron microscopy (UTEM), the speed of the electron will be close to the light, when the electron pulse passes through the acceleration field. So the radiation effect will be produced when the electron beam moves at high speed, which will cause energy loss. In this pa...
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doaj-37c2d239bcb848f9bad81c87b1aa91d72021-08-12T04:36:01ZengElsevierResults in Optics2666-95012021-12-015100121Study on characteristics and beam emission theory of UTEM electron gunHe Chen0Quanlin Dong1Zhongwen Li2School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing, China; Key Laboratory of Micro-Nano Measurement-Manipulation and Physics, ChinaSchool of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing, China; Key Laboratory of Micro-Nano Measurement-Manipulation and Physics, China; Corresponding author at: School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing, China.Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, ChinaIn the ultrafast transmission electron microscopy (UTEM), the speed of the electron will be close to the light, when the electron pulse passes through the acceleration field. So the radiation effect will be produced when the electron beam moves at high speed, which will cause energy loss. In this paper, the performance of femtosecond mode photoemission gun is analyzed and studied by simplifying the electron gun model. According to the knowledge of electrodynamics, the radiation power of pulsed electron beam is deduced, and the corresponding radiation energy is obtained, which can provide a reference for the ultrafast dynamics research and design of the photoemission gun.http://www.sciencedirect.com/science/article/pii/S2666950121000699Photoemission gunPulsed electron beamRadiation energyRadiation powerElectron gun brightness |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
He Chen Quanlin Dong Zhongwen Li |
spellingShingle |
He Chen Quanlin Dong Zhongwen Li Study on characteristics and beam emission theory of UTEM electron gun Results in Optics Photoemission gun Pulsed electron beam Radiation energy Radiation power Electron gun brightness |
author_facet |
He Chen Quanlin Dong Zhongwen Li |
author_sort |
He Chen |
title |
Study on characteristics and beam emission theory of UTEM electron gun |
title_short |
Study on characteristics and beam emission theory of UTEM electron gun |
title_full |
Study on characteristics and beam emission theory of UTEM electron gun |
title_fullStr |
Study on characteristics and beam emission theory of UTEM electron gun |
title_full_unstemmed |
Study on characteristics and beam emission theory of UTEM electron gun |
title_sort |
study on characteristics and beam emission theory of utem electron gun |
publisher |
Elsevier |
series |
Results in Optics |
issn |
2666-9501 |
publishDate |
2021-12-01 |
description |
In the ultrafast transmission electron microscopy (UTEM), the speed of the electron will be close to the light, when the electron pulse passes through the acceleration field. So the radiation effect will be produced when the electron beam moves at high speed, which will cause energy loss. In this paper, the performance of femtosecond mode photoemission gun is analyzed and studied by simplifying the electron gun model. According to the knowledge of electrodynamics, the radiation power of pulsed electron beam is deduced, and the corresponding radiation energy is obtained, which can provide a reference for the ultrafast dynamics research and design of the photoemission gun. |
topic |
Photoemission gun Pulsed electron beam Radiation energy Radiation power Electron gun brightness |
url |
http://www.sciencedirect.com/science/article/pii/S2666950121000699 |
work_keys_str_mv |
AT hechen studyoncharacteristicsandbeamemissiontheoryofutemelectrongun AT quanlindong studyoncharacteristicsandbeamemissiontheoryofutemelectrongun AT zhongwenli studyoncharacteristicsandbeamemissiontheoryofutemelectrongun |
_version_ |
1721209750847225856 |