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Properties of a glow discharge lamp of the Grimm type

Published online by Cambridge University Press:  15 September 2001

K. I. Grais ,
A. M. Bastawros ,
E. A. Al-Ashkar  and
K. A. Eid
K. I. Grais*
Affiliation:
Spectroscopy Physics Department, National Research Centre Dokki, Giza, Egypt
A. M. Bastawros
Affiliation:
Spectroscopy Physics Department, National Research Centre Dokki, Giza, Egypt
E. A. Al-Ashkar
Affiliation:
Spectroscopy Physics Department, National Research Centre Dokki, Giza, Egypt
K. A. Eid
Affiliation:
Spectroscopy Physics Department, National Research Centre Dokki, Giza, Egypt
*
khairiig@hotmail.com
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Abstract

This work describes a glow discharge lamp of the Grimm type. The lamp proved to be stable for periods up to about 2 hours. The intensity to background ratio of the Cu I 237.4 nm line from a brass target was found to be 200. Analysis of the experimental results showed that the discharge potential depends on the discharge current through a power law $(V=Ki^S)$. K and S are also power functions of the pressure P. Intensity was measured as a function of the lamp operating parameters (V, i, and P). Self-absorption was shown to be insignificant. The sputtering rate Q was found to vary with the lamp power W=Vi, Q=C Wm where C and m are constants.

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 15 , Issue 3 , September 2001 , pp. 213 - 221
Copyright
© EDP Sciences, 2001

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