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Identification of Beta-Tungsten in a Heavily Blackened, Burned Out, Vehicle Headlamp by X-Ray Powder Diffraction

Published online by Cambridge University Press:  28 October 2013

Arie Zeichner
Arie Zeichner
Affiliation:
Division of Criminal Identification, Israel National Police, Jerusalem, Israel
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Abstract

A headlamp of a vehicle involved in an accident was examined in order to assess whether or not it was lit during the collision. In the examination it was found that the headlamp bulb was heavily blackened in an unusual way and its two filaments burnt out. Applying X-ray powder diffraction by diffractometer, the black deposit present in the bulb was identified to consist of a mixture of β-tungsten and the ordinary α-tungsten.

Type
Research Article
Information
Powder Diffraction , Volume 2 , Issue 1 , March 1987 , pp. 5 - 6
Copyright
Copyright © Cambridge University Press 1987

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