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Component selection for a compact micro-XRF spectrometer

Bichlmeier, S. and Janssens, K. and Heckel, J. and Gibson, D. and Hoffmann, Peter and Ortner, H. M. (2001):
Component selection for a compact micro-XRF spectrometer.
30, In: X-Ray Spectrometry, (1), pp. 8-14, [Online-Edition: http://dx.doi.org/10.1002/xrs.457],
[Article]

Abstract

The performances of a number of commercially available components which together can be employed to assemble a compact micro-XRF spectrometer were compared. The purpose of such a spectrometer is to permit local, non-destructive analysis of various materials; its compact nature will allow it to be used on-site, i.e. at the location where the investigated objects/materials are present rather than in a laboratory. The performances of two polycapillary lenses (of different manufacture) and one monocapillary tube were compared in combination with a mini-focus x-ray tube with Mo anode. The use of an Si-drift chamber and an Si PIN-diode detector was investigated and the achievable minimum detection limits for trace elements in glass and silver matrices were determined. Finally, the effect of using mini-focus tubes (with 250 µm focus) as opposed to the use of a more conventional x-ray source (1 mm focus) on the obtained beam size was investigated. Copyright © 2001 John Wiley & Sons, Ltd.

Item Type: Article
Erschienen: 2001
Creators: Bichlmeier, S. and Janssens, K. and Heckel, J. and Gibson, D. and Hoffmann, Peter and Ortner, H. M.
Title: Component selection for a compact micro-XRF spectrometer
Language: English
Abstract:

The performances of a number of commercially available components which together can be employed to assemble a compact micro-XRF spectrometer were compared. The purpose of such a spectrometer is to permit local, non-destructive analysis of various materials; its compact nature will allow it to be used on-site, i.e. at the location where the investigated objects/materials are present rather than in a laboratory. The performances of two polycapillary lenses (of different manufacture) and one monocapillary tube were compared in combination with a mini-focus x-ray tube with Mo anode. The use of an Si-drift chamber and an Si PIN-diode detector was investigated and the achievable minimum detection limits for trace elements in glass and silver matrices were determined. Finally, the effect of using mini-focus tubes (with 250 µm focus) as opposed to the use of a more conventional x-ray source (1 mm focus) on the obtained beam size was investigated. Copyright © 2001 John Wiley & Sons, Ltd.

Journal or Publication Title: X-Ray Spectrometry
Volume: 30
Number: 1
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Material Analytics
Date Deposited: 03 Feb 2010 13:30
Official URL: http://dx.doi.org/10.1002/xrs.457
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