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Title: Note: O-ring stack system for electron gun alignment

Abstract

We present a reliable method for aligning an electron gun which consists of an electron source and lenses by controlling a stack of rubber O-rings in a vacuum condition. The beam direction angle is precisely tilted along two axes by adjusting the height difference of a stack of O-rings. In addition, the source position is shifted in each of three orthogonal directions. We show that the tilting angle and linear shift along the x and y axes as obtained from ten stacked O-rings are ±2.55° and ±2 mm, respectively. This study can easily be adapted to charged particle gun alignment and adjustments of the flange position in a vacuum, ensuring that its results can be useful with regard to electrical insulation between flanges with slight modifications.

Authors:
; ; ; ;  [1];  [1];  [2]
  1. Korea Research Institute of Standards and Science (KRISS), Daejeon 305-340 (Korea, Republic of)
  2. (Korea, Republic of)
Publication Date:
OSTI Identifier:
22392340
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 86; Journal Issue: 1; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ALIGNMENT; BEAMS; CHARGED PARTICLES; ELECTRICAL INSULATION; ELECTRON GUNS; ELECTRON SOURCES; FLANGES; GASKETS; RUBBERS

Citation Formats

Park, In-Yong, Cho, Boklae, Han, Cheolsu, Shin, Seungmin, Lee, Dongjun, Ahn, Sang Jung, E-mail: sjahn@kriss.re.kr, and Major of Nano Science, University of Science and Technology, Daejeon 305-340. Note: O-ring stack system for electron gun alignment. United States: N. p., 2015. Web. doi:10.1063/1.4905575.
Park, In-Yong, Cho, Boklae, Han, Cheolsu, Shin, Seungmin, Lee, Dongjun, Ahn, Sang Jung, E-mail: sjahn@kriss.re.kr, & Major of Nano Science, University of Science and Technology, Daejeon 305-340. Note: O-ring stack system for electron gun alignment. United States. doi:10.1063/1.4905575.
Park, In-Yong, Cho, Boklae, Han, Cheolsu, Shin, Seungmin, Lee, Dongjun, Ahn, Sang Jung, E-mail: sjahn@kriss.re.kr, and Major of Nano Science, University of Science and Technology, Daejeon 305-340. Thu . "Note: O-ring stack system for electron gun alignment". United States. doi:10.1063/1.4905575.
@article{osti_22392340,
title = {Note: O-ring stack system for electron gun alignment},
author = {Park, In-Yong and Cho, Boklae and Han, Cheolsu and Shin, Seungmin and Lee, Dongjun and Ahn, Sang Jung, E-mail: sjahn@kriss.re.kr and Major of Nano Science, University of Science and Technology, Daejeon 305-340},
abstractNote = {We present a reliable method for aligning an electron gun which consists of an electron source and lenses by controlling a stack of rubber O-rings in a vacuum condition. The beam direction angle is precisely tilted along two axes by adjusting the height difference of a stack of O-rings. In addition, the source position is shifted in each of three orthogonal directions. We show that the tilting angle and linear shift along the x and y axes as obtained from ten stacked O-rings are ±2.55° and ±2 mm, respectively. This study can easily be adapted to charged particle gun alignment and adjustments of the flange position in a vacuum, ensuring that its results can be useful with regard to electrical insulation between flanges with slight modifications.},
doi = {10.1063/1.4905575},
journal = {Review of Scientific Instruments},
number = 1,
volume = 86,
place = {United States},
year = {Thu Jan 15 00:00:00 EST 2015},
month = {Thu Jan 15 00:00:00 EST 2015}
}