Slow highly charged ion O<SUP>4+</SUP> induced electron emission from clean solid surfaces

XU Zhong-Feng; ZHAO Yong-Tao; WANG Yu-Yu; ZHAO Di; WANG Jian-Guo; LI De-Hui; Qayyum Abdul; LI Fu-Li; XIAO Guo-Qing

Chinese Physics C> 2008, Vol. 32> Issue(S2) : 247-250

Slow highly charged ion O⁴⁺ induced electron emission from clean solid surfaces

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The total electron emission yields following the interaction of slow highly charged ions (SHCI) O⁴⁺with different material surfaces (W, Au, Si and SiO₂) have been measured. It is found that the electron emission yield γ increases proportionally with the projectile velocity v ranging from 5.36×10⁵m/s to 10.7× 10⁵m/s. The total emission yield is dependent on the target materials, and it turns out to follow the relationship γ(Au)>γ(Si)>γ(W). The result shows that the electron emission yields are mainly determined by the electron stopping power of the target when the projectile potential energy is taken as a constant, which is in good agreement with the former studies.

References

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XU Zhong-Feng, ZHAO Yong-Tao, WANG Yu-Yu, ZHAO Di, WANG Jian-Guo, LI De-Hui, Qayyum Abdul, LI Fu-Li and XIAO Guo-Qing. Slow highly charged ion O⁴⁺ induced electron emission from clean solid surfaces[J]. Chinese Physics C, 2008, 32(S2): 247-250.

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Received: 2008-07-17
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Slow highly charged ion O⁴⁺ induced electron emission from clean solid surfaces

Corresponding author: XU Zhong-Feng,

Received Date: 2008-07-17

Accepted Date: 1900-01-01

Available Online: 2008-01-03

Abstract: The total electron emission yields following the interaction of slow highly charged ions (SHCI) O⁴⁺with different material surfaces (W, Au, Si and SiO₂) have been measured. It is found that the electron emission yield γ increases proportionally with the projectile velocity v ranging from 5.36×10⁵m/s to 10.7× 10⁵m/s. The total emission yield is dependent on the target materials, and it turns out to follow the relationship γ(Au)>γ(Si)>γ(W). The result shows that the electron emission yields are mainly determined by the electron stopping power of the target when the projectile potential energy is taken as a constant, which is in good agreement with the former studies.

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Slow highly charged ion O4+ induced electron emission from clean solid surfaces

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Slow highly charged ion O4+ induced electron emission from clean solid surfaces

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Slow highly charged ion O⁴⁺ induced electron emission from clean solid surfaces

Slow highly charged ion O⁴⁺ induced electron emission from clean solid surfaces