Article contents
A theory of filament lamp's failure statistics
Published online by Cambridge University Press: 18 May 2006
Abstract
We model the ejection of tungsten atoms from a hot filament by a binomial distribution. A normal approximation is made and the lamp is supposed to fail if the undecayed atomic fraction drops below a critical value. The resulting formula for the lamp survival probability has no free parameter and is shown to be in excellent agreement with the experimental mortality curve.
- Type
- Research Article
- Information
- The European Physical Journal - Applied Physics , Volume 34 , Issue 2: 15th International Colloquium on Plasma processes (CIP 2005) , May 2006 , pp. 117 - 121
- Copyright
- © EDP Sciences, 2006
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