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| Presentation | 2019-11-21 14:40 Characteristic evaluation of field emission cathode coated with liquid gallium Yuta Takafuji, Yoichiro Neo, Hidenori Mimura (Shizuoka Univ.)  ED2019-63 Link to ES Tech. Rep. Archives: ED2019-63 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Since the field was discovered by Hata et al. That a liquid metal thin film was coated on the tip of a field emission cathode, the electric field strength required for tailor cone formation was lower than the electric field required for field emission (FE), resulting in stable FE. Studies have been reported. Both Li (2.9eV) and Ga (4.2eV), which have very different work functions, have a significant increase in FE current exceeding 1mA, and the FE process is very interesting. In these reports, the formation of a liquid metal electron source has been achieved by cleaning the surface by flushing under an ultra-high vacuum and then depositing a thin liquid metal thin film by a controlled evaporation method. When practical application is considered, including a chip forming part and a transport system in the electron gun part is a major obstacle. In this report, we found a method to form a liquid metal electron source in situ without changing the configuration of the electron gun part of the current electron beam microscope by a simple and inexpensive method, and evaluated their characteristics. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | field emission / field emission cathode coated with liquid / Ga / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 119, no. 305, ED2019-63, pp. 17-20, Nov. 2019. | |
| Paper # | ED2019-63 | |
| Date of Issue | 2019-11-14 (ED) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | ED2019-63 Link to ES Tech. Rep. Archives: ED2019-63 |
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| Conference Information | |
| Committee | ED |
| Conference Date | 2019-11-21 - 2019-11-22 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | ED |
| Conference Code | 2019-11-ED |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Characteristic evaluation of field emission cathode coated with liquid gallium |
| Sub Title (in English) | |
| Keyword(1) | field emission |
| Keyword(2) | field emission cathode coated with liquid |
| Keyword(3) | Ga |
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| 1st Author's Name | Yuta Takafuji |
| 1st Author's Affiliation | Shizuoka University (Shizuoka Univ.) |
| 2nd Author's Name | Yoichiro Neo |
| 2nd Author's Affiliation | Shizuoka University (Shizuoka Univ.) |
| 3rd Author's Name | Hidenori Mimura |
| 3rd Author's Affiliation | Shizuoka University (Shizuoka Univ.) |
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| Speaker | Author-1 |
| Date Time | 2019-11-21 14:40:00 |
| Presentation Time | 25 minutes |
| Registration for | ED |
| Paper # | ED2019-63 |
| Volume (vol) | vol.119 |
| Number (no) | no.305 |
| Page | pp.17-20 |
| #Pages | 4 |
| Date of Issue | 2019-11-14 (ED) |
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