Temperature and energy effects on secondary electron emission from SiC ceramics induced by Xe17+ ions

Abstract Secondary electron emission yield from the surface of SiC ceramics induced by Xe17+ ions has been measured as a function of target temperature and incident energy. In the temperature range of 463–659 K, the total yield gradually decreases with increasing target temperature. The decrease is...

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Autores principales:	Lixia Zeng, Xianming Zhou, Rui Cheng, Xing Wang, Jieru Ren, Yu Lei, Lidong Ma, Yongtao Zhao, Xiaoan Zhang, Zhongfeng Xu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c0bc68c7421e48aab9f0dd8aa843bbcb
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spelling	oai:doaj.org-article:c0bc68c7421e48aab9f0dd8aa843bbcb2021-12-02T11:40:13ZTemperature and energy effects on secondary electron emission from SiC ceramics induced by Xe17+ ions10.1038/s41598-017-06891-92045-2322https://doaj.org/article/c0bc68c7421e48aab9f0dd8aa843bbcb2017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-06891-9https://doaj.org/toc/2045-2322Abstract Secondary electron emission yield from the surface of SiC ceramics induced by Xe17+ ions has been measured as a function of target temperature and incident energy. In the temperature range of 463–659 K, the total yield gradually decreases with increasing target temperature. The decrease is about 57% for 3.2 MeV Xe17+ impact, and about 62% for 4.0 MeV Xe17+ impact, which is much larger than the decrease observed previously for ion impact at low charged states. The yield dependence on the temperature is discussed in terms of work function, because both kinetic electron emission and potential electron emission are influenced by work function. In addition, our experimental data show that the total electron yield gradually increases with the kinetic energy of projectile, when the target is at a constant temperature higher than room temperature. This result can be explained by electronic stopping power which plays an important role in kinetic electron emission.Lixia ZengXianming ZhouRui ChengXing WangJieru RenYu LeiLidong MaYongtao ZhaoXiaoan ZhangZhongfeng XuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-6 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Lixia Zeng Xianming Zhou Rui Cheng Xing Wang Jieru Ren Yu Lei Lidong Ma Yongtao Zhao Xiaoan Zhang Zhongfeng Xu Temperature and energy effects on secondary electron emission from SiC ceramics induced by Xe17+ ions
description	Abstract Secondary electron emission yield from the surface of SiC ceramics induced by Xe17+ ions has been measured as a function of target temperature and incident energy. In the temperature range of 463–659 K, the total yield gradually decreases with increasing target temperature. The decrease is about 57% for 3.2 MeV Xe17+ impact, and about 62% for 4.0 MeV Xe17+ impact, which is much larger than the decrease observed previously for ion impact at low charged states. The yield dependence on the temperature is discussed in terms of work function, because both kinetic electron emission and potential electron emission are influenced by work function. In addition, our experimental data show that the total electron yield gradually increases with the kinetic energy of projectile, when the target is at a constant temperature higher than room temperature. This result can be explained by electronic stopping power which plays an important role in kinetic electron emission.
format	article
author	Lixia Zeng Xianming Zhou Rui Cheng Xing Wang Jieru Ren Yu Lei Lidong Ma Yongtao Zhao Xiaoan Zhang Zhongfeng Xu
author_facet	Lixia Zeng Xianming Zhou Rui Cheng Xing Wang Jieru Ren Yu Lei Lidong Ma Yongtao Zhao Xiaoan Zhang Zhongfeng Xu
author_sort	Lixia Zeng
title	Temperature and energy effects on secondary electron emission from SiC ceramics induced by Xe17+ ions
title_short	Temperature and energy effects on secondary electron emission from SiC ceramics induced by Xe17+ ions
title_full	Temperature and energy effects on secondary electron emission from SiC ceramics induced by Xe17+ ions
title_fullStr	Temperature and energy effects on secondary electron emission from SiC ceramics induced by Xe17+ ions
title_full_unstemmed	Temperature and energy effects on secondary electron emission from SiC ceramics induced by Xe17+ ions
title_sort	temperature and energy effects on secondary electron emission from sic ceramics induced by xe17+ ions
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/c0bc68c7421e48aab9f0dd8aa843bbcb
work_keys_str_mv	AT lixiazeng temperatureandenergyeffectsonsecondaryelectronemissionfromsicceramicsinducedbyxe17ions AT xianmingzhou temperatureandenergyeffectsonsecondaryelectronemissionfromsicceramicsinducedbyxe17ions AT ruicheng temperatureandenergyeffectsonsecondaryelectronemissionfromsicceramicsinducedbyxe17ions AT xingwang temperatureandenergyeffectsonsecondaryelectronemissionfromsicceramicsinducedbyxe17ions AT jieruren temperatureandenergyeffectsonsecondaryelectronemissionfromsicceramicsinducedbyxe17ions AT yulei temperatureandenergyeffectsonsecondaryelectronemissionfromsicceramicsinducedbyxe17ions AT lidongma temperatureandenergyeffectsonsecondaryelectronemissionfromsicceramicsinducedbyxe17ions AT yongtaozhao temperatureandenergyeffectsonsecondaryelectronemissionfromsicceramicsinducedbyxe17ions AT xiaoanzhang temperatureandenergyeffectsonsecondaryelectronemissionfromsicceramicsinducedbyxe17ions AT zhongfengxu temperatureandenergyeffectsonsecondaryelectronemissionfromsicceramicsinducedbyxe17ions
_version_	1718395725632503808

Temperature and energy effects on secondary electron emission from SiC ceramics induced by Xe17+ ions

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