| Presentation | 2017-10-27 Study of Sb-Cs Photocathode for ultrafast electron pulse Ryo Yoshitake, Hayato Takahashi, Yoichiro Neo, Hidenori Mimura, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In recent years, several ways for THz wave generation mechanism have been proposed and developed aggressively. The THz wave is required in many fields such as data communication technology, security, and so on. We have focused on Smith Purcell Radiation (SPR) as the one of solution to emit high frequency wave. Since this SPR has more effective respects as a generation mechanism of THz waves. We also had proposed SPR using pre-bunch electron beam. When a single electron pulse could interact with an evanescent wave on metal circuit, all spontaneous emission have same phase and could interfere with each other, as a result, the output power would be squared value of the case using a continuous electron beam. In this study, as a method for a short pulse bunch e-beam formation, alkali photocathode was adapted. In recent years, multi-alkali photocathode using two or more kinds of alkali metals have attracted attention. Multi-alkali photocathode is high durability, and high quantum efficiency is expected. In order to realize the superradiant, the cathode with response time less than 30 psec is required. We use Sb-Cs photocathode as a generation method of short pulse bunch beam. In this report, I manufacture the photoelectric mask using Sb-Cs and investigate the most suitable condition of board temperature and the vapor deposition film thickness and show the result that I evaluated. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Smith-purcell radiation / superradiant / AlkaliPhotocathode |
| Paper # | ED2017-48 |
| Date of Issue | 2017-10-19 (ED) |
| Conference Information | |
| Committee | ED |
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| Conference Date | 2017/10/26(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Kunio Tsuda(Toshiba) |
| Vice Chair | Michihiko Suhara(TMU) |
| Secretary | Michihiko Suhara(New JRC) |
| Assistant | Toshiyuki Oishi(Saga Univ.) / Tatsuya Iwata(TUT) |
| Paper Information | |
| Registration To | Technical Committee on Electron Devices |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Study of Sb-Cs Photocathode for ultrafast electron pulse |
| Sub Title (in English) | |
| Keyword(1) | Smith-purcell radiation |
| Keyword(2) | superradiant |
| Keyword(3) | AlkaliPhotocathode |
| 1st Author's Name | Ryo Yoshitake |
| 1st Author's Affiliation | Shizuoka University(Shizuoka Univ) |
| 2nd Author's Name | Hayato Takahashi |
| 2nd Author's Affiliation | Shizuoka University(Shizuoka Univ) |
| 3rd Author's Name | Yoichiro Neo |
| 3rd Author's Affiliation | Shizuoka University(Shizuoka Univ) |
| 4th Author's Name | Hidenori Mimura |
| 4th Author's Affiliation | Shizuoka University(Shizuoka Univ) |
| Date | 2017-10-27 |
| Paper # | ED2017-48 |
| Volume (vol) | vol.117 |
| Number (no) | ED-267 |
| Page | pp.pp.51-53(ED), |
| #Pages | 3 |
| Date of Issue | 2017-10-19 (ED) |