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Behaviour of the calibration of a Raman spectrometer with temperature changes

✍ Scribed by Abdelkader Mestari; Robert Gaufrès; Patrice Huguet

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
200 KB
Volume
28
Category
Article
ISSN
0377-0486

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✦ Synopsis

In connection with indirect Raman di †erence spectroscopy, a method which has been suggested for measuring Raman wavenumber shifts between two di †erent samples with a multi-channel spectrometer, the behaviour of the calibration of the spectrometer with temperature changes was studied. The aim of this work was to determine the experimental conditions which must be respected when using a spectral lamp as a calibration reference to take into account the possible calibration drift due to temperature changes during the recordings. The e †ects of temperature oscillations about a constant value and also a long-lasting temperature change were measured for each operating mode of the dispersing system of the spectrometer. The extent to which a calibration shift due to a temperature change may be considered as constant from one end of the spectral Ðeld of the detector of the spectrometer to the other was also investigated.

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