Low Energy Positron Beam Apparatus for Near-surface Studies and Its Application

Chin. Phys. Lett.

1992, Vol. 9

Issue (9): 491-494 DOI:

Original Articles

Low Energy Positron Beam Apparatus for Near-surface Studies and Its Application

GUO Xuezhe;WENG Huimin;HAN Rongdian

Department of Modern Physics, University of Science and Technology of China, Hefei 230026

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GUO Xuezhe, WENG Huimin, HAN Rongdian 1992 Chin. Phys. Lett. 9 491-494

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Abstract A low-energy positron beam apparatus has been designed and constructed. The beam can deliver a current of 4X 10⁴e⁺/s to a target when a 7.3mCi ²²Na source is used. The energy range,available at present is between 25eV and 16keV. We have applied it to study initially on the dynamic process of WSi_x film formation and on the distribution defects produced by N⁺ ion in nickel.

Keywords: 78.70.-g

Published: 01 September 1992

PACS:

78.70.-g

(Interactions of particles and radiation with matter)

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URL:

https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1992/V9/I9/0491

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