Neutralizing trapped electrons on the hydrogenated surface of a diamond amplifier
We discuss our investigation of electron trapping in a diamond amplifier (DA). Our previous work demonstrated that some electrons reaching the DA’s hydrogenated surface are not emitted. The state and the removal of these electrons is important for DA applications. We found that these stopped electro...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2012-01-01
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| Series: | Physical Review Special Topics. Accelerators and Beams |
| Online Access: | http://doi.org/10.1103/PhysRevSTAB.15.013501 |
| _version_ | 1819107928284594176 |
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| author | Xiangyun Chang Ilan Ben-Zvi Triveni Rao John Smedley Erdong Wang Qiong Wu Tianmu Xin |
| author_facet | Xiangyun Chang Ilan Ben-Zvi Triveni Rao John Smedley Erdong Wang Qiong Wu Tianmu Xin |
| author_sort | Xiangyun Chang |
| collection | DOAJ |
| description | We discuss our investigation of electron trapping in a diamond amplifier (DA). Our previous work demonstrated that some electrons reaching the DA’s hydrogenated surface are not emitted. The state and the removal of these electrons is important for DA applications. We found that these stopped electrons are trapped, and cannot be removed by a strong reversed-polarity electric field; to neutralize this surface charge, holes must be sent to the hydrogenated surface to recombine with the trapped electrons through the Shockley-Read-Hall surface-recombination mechanism. We measured the time taken for such recombination on the hydrogenated surface, viz. the recombination time, as less than 5 ns, limited by the resolution of our test system. With this measurement, we demonstrated that DA could be operated in an rf cavity with frequency of a few hundred megahertz. |
| first_indexed | 2024-12-22T03:01:49Z |
| format | Article |
| id | doaj.art-2810b8281fe7432581d51c0dc1c64029 |
| institution | Directory Open Access Journal |
| issn | 1098-4402 |
| language | English |
| last_indexed | 2024-12-22T03:01:49Z |
| publishDate | 2012-01-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Special Topics. Accelerators and Beams |
| spelling | doaj.art-2810b8281fe7432581d51c0dc1c640292022-12-21T18:41:09ZengAmerican Physical SocietyPhysical Review Special Topics. Accelerators and Beams1098-44022012-01-0115101350110.1103/PhysRevSTAB.15.013501Neutralizing trapped electrons on the hydrogenated surface of a diamond amplifierXiangyun ChangIlan Ben-ZviTriveni RaoJohn SmedleyErdong WangQiong WuTianmu XinWe discuss our investigation of electron trapping in a diamond amplifier (DA). Our previous work demonstrated that some electrons reaching the DA’s hydrogenated surface are not emitted. The state and the removal of these electrons is important for DA applications. We found that these stopped electrons are trapped, and cannot be removed by a strong reversed-polarity electric field; to neutralize this surface charge, holes must be sent to the hydrogenated surface to recombine with the trapped electrons through the Shockley-Read-Hall surface-recombination mechanism. We measured the time taken for such recombination on the hydrogenated surface, viz. the recombination time, as less than 5 ns, limited by the resolution of our test system. With this measurement, we demonstrated that DA could be operated in an rf cavity with frequency of a few hundred megahertz.http://doi.org/10.1103/PhysRevSTAB.15.013501 |
| spellingShingle | Xiangyun Chang Ilan Ben-Zvi Triveni Rao John Smedley Erdong Wang Qiong Wu Tianmu Xin Neutralizing trapped electrons on the hydrogenated surface of a diamond amplifier Physical Review Special Topics. Accelerators and Beams |
| title | Neutralizing trapped electrons on the hydrogenated surface of a diamond amplifier |
| title_full | Neutralizing trapped electrons on the hydrogenated surface of a diamond amplifier |
| title_fullStr | Neutralizing trapped electrons on the hydrogenated surface of a diamond amplifier |
| title_full_unstemmed | Neutralizing trapped electrons on the hydrogenated surface of a diamond amplifier |
| title_short | Neutralizing trapped electrons on the hydrogenated surface of a diamond amplifier |
| title_sort | neutralizing trapped electrons on the hydrogenated surface of a diamond amplifier |
| url | http://doi.org/10.1103/PhysRevSTAB.15.013501 |
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